U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PubAg

Main content area

You searched for: Subject benzoxazinoids Remove constraint Subject: benzoxazinoids
Start Over

Search

154  Search Results

« Previous | 1 - 50 of 154 |
Number of results to display per page

Search Results

1. 12-Oxo-Phytodienoic Acid Acts as a Regulator of Maize Defense against Corn Leaf Aphid

Author:
Suresh Varsani; Sajjan Grover; Shaoqun Zhou; Kyle G. Koch; Pei-Cheng Huang; Michael V. Kolomiets; W. P. Williams; Tiffany Heng-Moss; Gautam Sarath; Dawn S. Luthe; Georg Jander; Joe Louis
Source:
Plant physiology 2019 v.179 no.4 pp. 1402-1415
ISSN:
0032-0889
Subject:
Rhopalosiphum maidis; Zea mays; benzoxazinoids; callose; conjugated linoleic acid; corn; electrophysiology; ethylene production; feeding behavior; genes; grain crops; inbred lines; insect pests; insect resistance; jasmonic acid; messenger RNA; metabolites; monitoring; phloem; plant breeding; proteinases; synergism; toxicity
Abstract:
... The corn leaf aphid (CLA; Rhopalosiphum maidis) is a phloem sap-sucking insect that attacks many cereal crops, including maize (Zea mays). We previously showed that the maize inbred line Mp708, which was developed by classical plant breeding, provides enhanced resistance to CLA. Here, using electrophysiological monitoring of aphid feeding behavior, we demonstrate that Mp708 provides phloem-mediate ...
Handle:
10113/6757200
DOI:
10.1104/pp.18.01472
PubMed:
30643012
PubMed Central:
PMC6446797
CHORUS:
10.1104/pp.18.01472

2. 2,4-Dihydroxy-7-methoxy-2H-1,4-benzoxazin-3(4H)-one (DIMBOA) inhibits trichothecene production by Fusarium graminearum through suppression of Tri6 expression

Author:
Thomas Etzerodt; Kazuyuki Maeda; Yuichi Nakajima; Bente Laursen; Inge S. Fomsgaard; Makoto Kimura
Source:
International journal of food microbiology 2015 v.214 pp. 123-128
ISSN:
0168-1605
Subject:
15-acetyldeoxynivalenol; Fusarium graminearum; Fusarium head blight; Triticum aestivum; benzoxazinoids; biosynthesis; breeding; dimboa; engineering; fungi; genes; hydroxamic acids; microbial growth; secondary metabolites; toxicity; transcription factors; wheat
Abstract:
... Fusarium head blight (FHB) is a devastating disease of wheat (Triticum aestivum L.) caused by a mycotoxigenic fungus Fusarium graminearum resulting in significantly decreased yields and accumulation of toxic trichothecenes in grains. We tested 7 major secondary metabolites from wheat for their effect on trichothecene production in liquid cultures of F. graminearum producing trichothecene 15-acetyl ...
DOI:
10.1016/j.ijfoodmicro.2015.07.014

3. Allelopathic Plants: Models for Studying Plant–Interkingdom Interactions

Author:
Niklas Schandry; Claude Becker
Source:
Trends in plant science 2020 v.25 no.2 pp. 176-185
ISSN:
1360-1385
Subject:
allelochemicals; allelopathy; bacteria; benzoxazinoids; fungi; insects; models; plant health; secondary metabolites
Abstract:
... Allelopathy is a biochemical interaction between plants in which a donor plant releases secondary metabolites, allelochemicals, that are detrimental to the growth of its neighbours. Traditionally considered as bilateral interactions between two plants, allelopathy has recently emerged as a cross-kingdom process that can influence and be modulated by the other organisms in the plant’s environment. ...
DOI:
10.1016/j.tplants.2019.11.004

4. Alterations in 1,4-Benzoxazinone Levels Following Inoculation with Stem Rust in Wheat Leaves Carrying Various Alleles for Resistance and Their Possible Role as Phytoalexins in Moderately Resistant Leaves

Author:
Claudia Bücker; Hans J. Grambow
Source:
Zeitschrift für Naturforschung 2014 v.45 no.11-12 pp. 1151-1155
ISSN:
0939-5075
Subject:
Puccinia graminis; Triticum aestivum; alleles; benzoxazinoids; cultivars; dimboa; hydroxamic acids; leaves; phytoalexins; plant pathogenic fungi; stem rust; wheat
Abstract:
... The contents of 1,4-benzoxazinone derivatives in wheat plants infected with Puccinia graminis Pers. f. sp. tritici Ericss. & Henn, race 32, and in uninfected controls were examined in four near-isogenic lines of different infection types: Triticum aestivum L., cultivar Prelude Sr5 (highly resistant), Sr24, Sr26 (moderately resistant), and srx (susceptible). In all infection types the contents of D ...
DOI:
10.1515/znc-1990-11-1211

5. Alterations of the Benzoxazinoid Profiles of Uninjured Maize Seedlings During Freezing, Storage, and Lyophilization

Author:
Pedersen Hans Albert; Heinrichson Kirsten; Fomsgaard Inge S.
Source:
Journal of agricultural and food chemistry 2017 v.65 no.20 pp. 4103-4110
ISSN:
1520-5118
Subject:
aqueous solutions; benzoxazinoids; bioactive properties; corn; enzymatic hydrolysis; enzymes; freeze drying; freezing; glucosides; high performance liquid chromatography; hydrolysis; hydroxamic acids; lactams; mass spectrometry; seedlings
Abstract:
... Benzoxazinoids are highly studied compounds due to their biological activity and presence in several cereals. They include compound classes such as hydroxamic acids and lactams and usually occur as inactive glucosides in unstressed plants. Injury to the plant causes enzymatic hydrolysis of the inactive glucosides to the biologically active hydroxamic acid and lactam aglucones. The hydroxamic acids ...
DOI:
10.1021/acs.jafc.7b01158

6. Analysis of selected phytotoxins and mycotoxins in environmental samples

Author:
Hoerger, Corinne C.; Schenzel, Judith; Strobel, Bjarne W.; Bucheli, Thomas D.
Source:
Analytical and bioanalytical chemistry 2009 v.395 no.5 pp. 1261-1289
ISSN:
1618-2642
Subject:
aflatoxins; analytical methods; benzoxazinoids; chalcones; fumonisins; glucosinolates; glycoalkaloids; isothiocyanates; lactones; lignans; natural toxicants; phenolic acids; phytosterols; phytotoxins; pollutants; quinones; sampling; sediments; sewage sludge; soil; surface water; system optimization; trichothecenes; water treatment
Abstract:
... Natural toxins such as phytotoxins and mycotoxins have been studied in food and feed for decades, but little attention has yet been paid to their occurrence in the environment. Because of increasing awareness of the presence and potential relevance of micropollutants in the environment, phytotoxins and mycotoxins should be considered and investigated as part of the chemical cocktail in natural sam ...
DOI:
10.1007/s00216-009-3088-y

7. Annulation-Triggered Denitrogenative Transformations of 2-(5-Iodo-1,2,3-triazolyl)benzoic Acids

Author:
Vladislav A. Voloshkin; Yury N. Kotovshchikov; Gennadij V. Latyshev; Nikolay V. Lukashev; Irina P. Beletskaya
Source:
Journal of organic chemistry 2022 v.87 no.11 pp. 7064-7075
ISSN:
1520-6904
Subject:
benzoxazinoids; cyclization reactions; diazo compounds; organic chemistry
Abstract:
... The ability of [1,2,3]triazolobenzoxazinones to act as a source of “hidden” diazo group was discovered. These diazo precursors can be easily prepared by the intramolecular cyclization of 2-(5-iodo-1,2,3-triazolyl)benzoic acids. The Cu-catalyzed capture of the hidden diazo group allows for further functionalization through the denitrogenative pathway. The transformations proceed via the formation o ...
DOI:
10.1021/acs.joc.2c00235

8. The Asian corn borer Ostrinia furnacalis feeding increases the direct and indirect defence of mid‐whorl stage commercial maize in the field

Author:
Jingfei Guo; Jinfeng Qi; Kanglai He; Jianqiang Wu; Shuxiong Bai; Tiantao Zhang; Jiuran Zhao; Zhenying Wang
Source:
Plant biotechnology journal 2019 v.17 no.1 pp. 88-102
ISSN:
1467-7644
Subject:
Macrocentrus; Ostrinia furnacalis; Zea mays; benzoxazinoids; biotechnology; corn; gene expression; gene expression regulation; herbivores; hybrids; metabolome; parasitic wasps; plant hormones; transcriptome
Abstract:
... The Asian corn borer (Ostrinia furnacalis Guenée) is a destructive pest of maize (Zea mays L.). Despite large‐scale commercial maize production, little is known about the defensive responses of field‐grown commercial maize to O. furnacalis herbivory, and how these responses result in direct and indirect defence against this pest. To elucidate the maize transcriptome response to O. furnacalis feedi ...
DOI:
10.1111/pbi.12949
PubMed:
29754404
PubMed Central:
PMC6330542

9. Augmented Multivariate Image Analysis Applied to Quantitative Structure–Activity Relationship Modeling of the Phytotoxicities of Benzoxazinone Herbicides and Related Compounds on Problematic Weeds

Author:
Freitas Mirlaine R.; Matias Stella V. B. G.; Macedo Renato L. G.; Freitas Matheus P.; Venturin Nelson
Source:
Journal of agricultural and food chemistry 2013 v.61 no.36 pp. 8499-8503
ISSN:
1520-5118
Subject:
Avena fatua; Lolium rigidum; allelochemicals; benzoxazinoids; grain crops; herbicides; image analysis; models; oats; phytotoxicity; quantitative structure-activity relationships; weeds
Abstract:
... Two of major weeds affecting cereal crops worldwide are Avena fatua L. (wild oat) and Lolium rigidum Gaud. (rigid ryegrass). Thus, development of new herbicides against these weeds is required; in line with this, benzoxazinones, their degradation products, and analogues have been shown to be important allelochemicals and natural herbicides. Despite earlier structure–activity studies demonstrating ...
DOI:
10.1021/jf4024257
PubMed:
23947385

10. The Auxin-Regulated Protein ZmAuxRP1 Coordinates the Balance between Root Growth and Stalk Rot Disease Resistance in Maize

Author:
Jianrong Ye; Tao Zhong; Dongfeng Zhang; Chuanyu Ma; Lina Wang; Lishan Yao; Qianqian Zhang; Mang Zhu; Mingliang Xu
Source:
Molecular plant 2018 pp. -
ISSN:
1674-2052
Subject:
Fusarium; Zea mays; benzoxazinoids; biochemical pathways; biosynthesis; corn; disease resistance; ear rot; fungi; genes; indole acetic acid; loci; molecular cloning; pathogens; phosphates; root growth
Abstract:
... To optimize fitness, plants must efficiently allocate their resources between growth and defense. Although phytohormone crosstalk has emerged as a major player in balancing growth and defense, the genetic basis by which plants manage this balance remains elusive. We previously identified a quantitative disease-resistance locus, qRfg2, in maize (Zea mays) that protects against the fungal disease Gi ...
DOI:
10.1016/j.molp.2018.10.005

11. Benzoxazinoid and alkylresorcinol content, and their antioxidant potential, in a grain of spring and winter wheat cultivated under different production systems

Author:
Iwona Kowalska; Dariusz Jędrejek
Source:
Journal of cereal science 2020 v.95 pp. 103063
ISSN:
0733-5210
Subject:
Triticum aestivum; alkylresorcinols; antioxidant activity; benzoxazinoids; cultivars; free radicals; health promotion; phytochemicals; spring; value added; winter wheat; Poland
Abstract:
... The health-promoting properties of the grains of common wheat (Triticum aestivum L.) are associated with the presence of unique phytochemicals. This study determines the profile of alkylresorcinols (ARs) and benzoxazinoids (BXs) in T. aestivum spring and winter cultivars grown in Poland under the two different production systems: conventional and organic. Wheat grain extracts were subjected to qua ...
DOI:
10.1016/j.jcs.2020.103063

12. Benzoxazinoids Biosynthesis in Rye (Secale cereale L.) Is Affected by Low Temperature

Author:
Beata Bakera; Magdalena Święcicka; Anna Stochmal; Mariusz Kowalczyk; Leszek Bolibok; Monika Rakoczy-Trojanowska
Source:
Agronomy 2020 v.10 no.9 pp. -
ISSN:
2073-4395
Subject:
Secale cereale; benzoxazinoids; biosynthesis; cultivars; dimboa; gene expression; genes; hydroxamic acids; inbred lines; metabolites; plant breeding; rye; seed germination; temperature; vernalization; winter
Abstract:
... Benzoxazinoids (BXs) are specialized metabolites with protective properties that are synthesized predominantly by Poaceae species, including rye (Secale cereale). Among factors known to influence BXs production, prolonged low temperature has not been studied previously. In this study, the influence of cultivation at 4 °C, which is essential for vernalization, on the concentration of BXs (HBOA, DIB ...
DOI:
10.3390/agronomy10091260

13. Benzoxazinoids from Scoparia dulcis (sweet broomweed) with antiproliferative activity against the DU-145 human prostate cancer cell line

Author:
Wan-Hsun Wu; Tzu-Yu Chen; Rui-Wen Lu; Shui-Tein Chen; Chia-Chuan Chang
Source:
Phytochemistry 2012 v.83 no. pp. 110-115
ISSN:
0031-9422
Subject:
Scoparia dulcis; benzoxazinoids; fructose; glucose; humans; inhibitory concentration 50; medicinal plants; p-coumaric acid; prostatic neoplasms; sodium; subtropics; Africa; Asia
Abstract:
... Sweet broomweed (Scoparia dulcis) is an edible perennial medicinal herb widely distributed in tropical and subtropical regions of Asia, Africa, and the Americas. Four compounds, (2R)-7-methoxy-2H-1,4-benzoxazin-3(4H)-one 2-O-β-galactopyranoside [(2R)-HMBOA-2-O-Gal], 3,6-dimethoxy-benzoxazolin-2(3H)-one (3,6-M2BOA), 3-hydroxy-6-methoxy-2-benzoxazolinone (3-OH-MBOA), and scutellarein 7-O-β-glucurona ...
DOI:
10.1016/j.phytochem.2012.07.022
PubMed:
22944352

14. Benzoxazinoids in Prostate Cancer Patients after a Rye-Intensive Diet: Methods and Initial Results

Author:
Steffensen Stine K.; Pedersen Hans A.; Adhikari Khem B.; Laursen Bente B.; Jensen Claudia; Høyer Søren; Borre Michael; Pedersen Helene H.; Borre Mette; Edwards David; Fomsgaard Inge S.
Source:
Journal of agricultural and food chemistry 2016 v.64 no.43 pp. 8235-8245
ISSN:
1520-5118
Subject:
benzoxazinoids; biopsy; breads; detection limit; diet; in vitro studies; neoplasm cells; patients; prostatic neoplasms; rye; urine
Abstract:
... Rye bread contains high amounts of benzoxazinoids, and in vitro studies have shown suppressive effects of selected benzoxazinoids on prostate cancer cells. Thus, research into benzoxazinoids as possible suppressors of prostate cancer is demanded. A pilot study was performed in which ten prostate cancer patients received a rye-enriched diet 1 week prior to prostatectomy. Plasma and urine samples we ...
DOI:
10.1021/acs.jafc.6b03765

15. Benzoxazinoids in Rye Allelopathy - From Discovery to Application in Sustainable Weed Control and Organic Farming

Author:
Margot Schulz; Adriano Marocco; Vincenzo Tabaglio; Francisco A. Macias; Jose M. G. Molinillo
Source:
Journal of chemical ecology 2013 v.39 no.2 pp. 154-174
ISSN:
0098-0331
Subject:
Secale cereale; allelopathy; benzoxazinoids; biosynthesis; breeding; cover crops; cultivars; death; ecotypes; extrusion; fungi; germination; metabolome; microbial activity; organic production; phytotoxicity; proteome; rye; seedlings; soil; transcriptome; weed control; weeds
Abstract:
... The allelopathic potency of rye (Secale cereale L.) is due mainly to the presence of phytotoxic benzoxazinones—compounds whose biosynthesis is developmentally regulated, with the highest accumulation in young tissue and a dependency on cultivar and environmental influences. Benzoxazinones can be released from residues of greenhouse-grown rye at levels between 12 and 20 kg/ha, with lower amounts ex ...
DOI:
10.1007/s10886-013-0235-x
PubMed:
23385365

16. Benzoxazinoids in roots and shoots of cereal rye (Secale cereale) and their fates in soil after cover crop termination

Author:
Clifford P. Rice; Briana A. Otte; Matthew Kramer; Harry H. Schomberg; Steven B. Mirsky; Katherine L. Tully
Source:
Chemoecology 2022 v.32 no.3 pp. 117-128
ISSN:
0937-7409
Subject:
Secale cereale; agroecosystems; allelochemicals; benzoxazinoids; cover crop termination; no-tillage; rhizosphere; rye; soil; weed control
Abstract:
... Cover crops provide many agroecosystem services, including weed suppression, which is partially exerted through release of allelopathic benzoxazinoid (BX) compounds. This research (1) characterizes changes in concentrations of BX compounds in shoots, roots, and soil at three growth stages (GS) of cereal rye (Secale cereale L.), and (2) their degradation in soil over time following termination. Con ...
Datasets:
Data from: Benzoxazinoids in roots and shoots of cereal rye (Secale cereale) and their fates in soil after cover crop termination
DOI:
10.1007/s00049-022-00371-x

17. Benzoxazinoids in wheat allelopathy – From discovery to application for sustainable weed management

Author:
M. Iftikhar Hussain; Fabrizio Araniti; Margot Schulz; Scott Baerson; Yedra Vieites-Álvarez; Leonidas Rempelos; Paul Bilsborrow; Nuria Chinchilla; Francisco A. Macías; Leslie A. Weston; Manuel J. Reigosa; Adela M. Sánchez-Moreiras
Source:
Environmental and experimental botany 2022 v.202 pp. 104997
ISSN:
0098-8472
Subject:
Avena fatua; Bromus japonicus; Chenopodium album; Lolium rigidum; Portulaca oleracea; Triticum aestivum; agroecosystems; allelochemicals; allelopathy; benzoxazinoids; biodiversity; biosynthesis; cultivars; flavonoids; fungi; genotype; germination; glucosylation; hydroxylation; metabolites; polymerization; proteome; seedling growth; transcription (genetics); weed control; weeds; wheat
Abstract:
... Allelopathic activity of wheat (Triticum aestivum L.) has previously been associated with the production of phenolic acids and flavonoids (PAF), benzoxazinones (BXZs) and phenoxazinones (PXZs). The biosynthesis of BXZs is closely regulated during cereal growth, with accumulation highest in young tissues with variation associated with genotype and environmental conditions. This review is focused on ...
Handle:
10113/7837323
DOI:
10.1016/j.envexpbot.2022.104997

18. Benzoxazinoids: Cereal phytochemicals with putative therapeutic and health‐protecting properties

Author:
Khem B. Adhikari; Fariha Tanwir; Per L. Gregersen; Stine K. Steffensen; Bettina M. Jensen; Lars K. Poulsen; Claus H. Nielsen; Søren Høyer; Michael Borre; Inge S. Fomsgaard
Source:
Molecular nutrition & food research 2015 v.59 no.7 pp. 1324-1338
ISSN:
1613-4125
Subject:
alkylresorcinols; animal models; benzoxazinoids; breads; breakfast cereals; central nervous system; functional foods; humans; in vitro studies; ingredients; lignans; medicinal plants; medicinal properties; phenolic acids; phytopharmaceuticals; reproductive system; small cereal grains; weight loss
Abstract:
... Benzoxazinoids (BXs) are a group of natural chemical compounds with putative pharmacological and health‐protecting properties. BXs were formerly identified in and isolated from selected dicot medicinal plants and young cereal plants. Recently, BXs were found to be present in mature cereal grains and bakery products, such that knowledge about the pharmacological properties of BXs, which until now h ...
DOI:
10.1002/mnfr.201400717

19. Benzoxazinone synthesis via Passerini–Smiles couplings

Author:
Elodie Martinand-Lurin; Laurent El Kaïm; Laurence Grimaud
Source:
Tetrahedron letters 2014 v.55 no.37 pp. 5144-5146
ISSN:
0040-4039
Subject:
aniline; benzoxazinoids; catalytic activity; chemical reactions; chemical structure; nitrophenols
Abstract:
... Benzoxazinones are easily prepared using Passerini–Smiles couplings of o-nitrophenol derivatives. Palladium-catalyzed flow-hydrogenation of adducts gives aniline derivatives that cyclize into benzoxazinones on treatment with trifluoroacetic acid. ...
DOI:
10.1016/j.tetlet.2014.07.088

20. Benzoxazinone-Mediated Triazine Degradation: A Proposed Reaction Mechanism

Author:
C. D. Willett; R. N. Lerch; C. H. Lin; K. W. Goyne; N. D. Leigh; C. A. Roberts
Source:
Journal of agricultural and food chemistry 2016 v.64 no.24 pp. 4858-4865
ISSN:
0021-8561
Subject:
atrazine; benzoxazinoids; chlorides; chromatography; soil pollution; spectroscopy; stoichiometry; water pollution; water resources
Abstract:
... The role of benzoxazinones (Bx, 2-hydroxy-2H-1,4-benzoxazin-3(4H)-one) in triazine resistance in plants has been studied for over half a century. In this research, fundamental parameters of the reaction between DIBOA-Glc (2-β-d-glucopyranosyloxy-4-hydroxy-1,4-benzoxazin-3-one) and atrazine (ATR, 6-chloro-N-ethyl-N′-(1-methylethyl)-1,3,5-triazine-2,4-diamine) were examined. Through a series of expe ...
DOI:
10.1021/acs.jafc.6b01017
CHORUS:
10.1021/acs.jafc.6b01017

21. Beyond Defense: Multiple Functions of Benzoxazinoids in Maize Metabolism

Author:
Shaoqun Zhou; Annett Richter; Georg Jander
Source:
Plant & cell physiology 2018 v.59 no.8 pp. 1528-1537
ISSN:
1471-9053
Subject:
Zea mays; aluminum; auxins; benzoxazinoids; biochemical pathways; chemical defenses; corn; flowering date; genes; genomics; iron; metabolism; metabolites; metal tolerance; pathogens; pests; seedlings
Abstract:
... Benzoxazinoids are a class of indole-derived plant metabolites that function in defense against numerous pests and pathogens. Due to their abundance in maize (Zea mays) and other important cereal crops, benzoxazinoids have been the subject of extensive research for >50 years. Whereas benzoxazinoids can account for 1% or more of the dry weight in young seedlings constitutively, their accumulation i ...
DOI:
10.1093/pcp/pcy064

22. Bioactive Benzoxazinoids in Rye Bread Are Absorbed and Metabolized in Pigs

Author:
Adhikari Khem B.; Laursen Bente B.; Lærke Helle N.; Fomsgaard Inge S.
Source:
Journal of agricultural and food chemistry 2012 v.60 no.10 pp. 2497-2506
ISSN:
1520-5118
Subject:
benzoxazinoids; bioactive properties; bioavailability; blood; breads; digestibility; high performance liquid chromatography; mass spectrometry; metabolism; rye; secondary metabolites; swine; urine
Abstract:
... Recently, bioactive benzoxazinoids were discovered in cereal grains and bakery products. In this study, we studied the uptake, distribution, and metabolism of these secondary metabolites using a pig model. Twelve benzoxazinoid compounds and their 4 transformation products were quantified in the pigs’ diets and biofluids using high-performance liquid chromatography coupled to electrospray ionizatio ...
DOI:
10.1021/jf2048492
PubMed:
22352867

23. Bioactive phytochemicals in wheat: Extraction, analysis, processing, and functional properties

Author:
Devanand L. Luthria; Yingjian Lu; K.M. Maria John
Source:
Journal of functional foods 2015 v.18 pp. 910-925
ISSN:
1756-4646
Subject:
alkylresorcinols; benzoxazinoids; bioactive compounds; bioactive properties; carotenoids; foods; functional properties; lignans; phenolic acids; phytosterols; tocopherols; wheat
Abstract:
... Whole wheat provides a rich source of bioactive phytochemicals namely, phenolic acids, carotenoids, tocopherols, alkylresorcinols, benzoxazinoids, phytosterols, and lignans. This review provides information on the distribution, extractability, analysis, and functional properties of bioactive phytochemicals present in wheat. Understanding the impact of processing on wheat phytochemicals allows us t ...
DOI:
10.1016/j.jff.2015.01.001

24. Bioactive small molecules in commercially available cereal food: Benzoxazinoids

Author:
Stine K. Steffensen; Khem B. Adhikari; Bente B. Laursen; Claudia Jensen; Per L. Gregersen; Bina Bhattarai; Lovisa Martín Maraís; Heidi Schnorr; Bettina M. Jensen; Lars K. Poulsen; Claus H. Nielsen; Mette Borre; Michael Borre; Søren Høyer; Inge S. Fomsgaard
Source:
Subtropical plant science 2017 v.64 pp. 213-222
ISSN:
0485-2044
Subject:
benzoxazinoids; breads; detection limit; ingredients; liquids; mass spectrometry; whole grain foods
Abstract:
... The presence of bioactive benzoxazinoids (BXs) in mature whole grain and experimental bread products was recently shown. The aim of this study was to reveal the level of BXs in a broad range of commercial cereal products and discuss these findings in relation to ingredients and preparation processes. The concentrations of 11 BX compounds were determined by liquid chromatography–triple quadrupole m ...
DOI:
10.1016/j.jfca.2017.10.001

25. Bioactivity of Acanthus mollis – Contribution of benzoxazinoids and phenylpropanoids

Author:
P. Matos; A. Figueirinha; A. Paranhos; F. Nunes; P. Cruz; C.F.G.C. Geraldes; M.T. Cruz; M.T. Batista
Source:
Journal of ethnopharmacology 2018 v.227 pp. 198-205
ISSN:
0378-8741
Subject:
benzoxazinoids; anti-inflammatory activity; lipopolysaccharides; 2,2-diphenyl-1-picrylhydrazyl; verbascoside; high performance liquid chromatography; carbon; Acanthus mollis; urinary tract; stable isotopes; inhibitory concentration 50; electrospray ionization mass spectrometry; macrophages; mucosa; superoxide anion; enzyme inhibition; leaves; traditional medicine; Toll-like receptor 4; cytotoxicity; linoleate 13S-lipoxygenase; bioactive compounds; in vitro studies; keratinocytes; antioxidant activity; ethanol; chemical structure; nuclear magnetic resonance spectroscopy; nitric oxide; therapeutics; chemical constituents of plants; analgesics; agonists; Mediterranean region
Abstract:
... Acanthus mollis is a plant native to the Mediterranean region, traditionally used as diuretic, anti-inflammatory and soothing of the mucous membranes of the digestive and urinary tract and externally as healing of wounds and burns, also demonstrating analgesic and anti-inflammatory activities. However, studies focused on its phytochemical composition as well as scientific proof of Acanthus mollis ...
DOI:
10.1016/j.jep.2018.09.013

26. Biomimetic asymmetric reduction of benzoxazinones and quinoxalinones using ureas as transfer catalysts

Author:
Zi-Biao Zhao; Xiang Li; Mu-Wang Chen; Zongbao K. Zhao; Yong-Gui Zhou
Source:
Chemical communications 2020 v.56 no.53 pp. 7309-7312
ISSN:
1364-548X
Subject:
NAD (coenzyme); NADP (coenzyme); benzoxazinoids; biomimetics; catalysts; chemical reactions; enantioselectivity; hydrogen bonding; models
Abstract:
... Using ureas as transfer catalysts through hydrogen bonding activation, biomimetic asymmetric reduction of benzoxazinones and quinoxalinones with chiral and regenerable NAD(P)H models was described, giving chiral dihydrobenzoxazinones and dihydroquinoxalinones with high yields and excellent enantioselectivities. A key dihydroquinoxalinone intermediate of a BRD4 inhibitor was synthesized using biomi ...
DOI:
10.1039/d0cc03091k

27. Biosynthesis and chemical transformation of benzoxazinoids in rye during seed germination and the identification of a rye Bx6-like gene

Author:
Fariha Tanwir; Giuseppe Dionisio; Khem B. Adhikari; Inge S. Fomsgaard; Per L. Gregersen
Source:
Phytochemistry 2017 v.140 pp. 95-107
ISSN:
0031-9422
Subject:
Escherichia coli; benzoxazinoids; bioinformatics; biosynthesis; complementary DNA; corn; genes; health promotion; humans; messenger RNA; oxidation; roots; rye; secondary metabolites; seed germination; seedlings; shoots; tissues; transcription (genetics)
Abstract:
... Benzoxazinoids are secondary metabolites with plant defense properties and possible health-promoting effects in humans. In this study, the transcriptional activity of ScBx genes (ScBx1-ScBx5; ScBx6-like), involved in benzoxazinoid biosynthesis, was analyzed during germination and early seedling development in rye. Our results showed that ScBx genes had highest levels of expression at 24–30 h after ...
DOI:
10.1016/j.phytochem.2017.04.020

28. Catalyst-Controlled Structural Divergence: Selective Intramolecular 7-endo-dig and 6-exo-dig Post-Ugi Cyclization for the Synthesis of Benzoxazepinones and Benzoxazinones

Author:
Karandeep Singh; Bhanwar Kumar Malviya; Tapta Kanchan Roy; Venus Singh Mithu; Vimal K. Bhardwaj; Ved Prakash Verma; Swapandeep Singh Chimni; Siddharth Sharma
Source:
Journal of organic chemistry 2018 v.83 no.1 pp. 57-68
ISSN:
1520-6904
Subject:
benzoxazinoids; catalysts; chemical reactions; chemical structure; density functional theory; gold; nuclear magnetic resonance spectroscopy; organic chemistry
Abstract:
... Metal catalyzed post-Ugi cyclization of bis-amides is reported in this study. Exposure of bis-amides to Pd(II) catalyst triggered the formation of seven-membered benzoxazepinones. This investigation established that changing the catalyst to a Echavarren’s gold(I) turned off cyclization to seven member ring and turned on 6-exo-dig annulations to afford family of six-membered benzoxazinones. To supp ...
DOI:
10.1021/acs.joc.7b02123

29. Changes in the phytochemical profile of rye bran induced by enzymatic bioprocessing and sourdough fermentation

Author:
Ville Mikael Koistinen; Kati Katina; Emilia Nordlund; Kaisa Poutanen; Kati Hanhineva
Source:
Food research international 2016 v.89 pp. 1106-1115
ISSN:
0963-9969
Subject:
alkylresorcinols; benzoxazinoids; bioavailability; bioprocessing; breads; fermentation; functional foods; metabolomics; phenolic acids; phytopharmaceuticals; rye; rye bran; rye flour; sourdough; wheat; whole grain foods; yeasts
Abstract:
... Rye bran is a rich source of phytochemicals, such as alkylresorcinols, benzoxazinoids, and phenolic acids, which likely are attributing to the positive health effects of whole-grain foods. In this study, we examined the effect of two types of bioprocessing of rye bran on the phytochemical profile as compared with non-processed rye bran, using a non-targeted LC–MS metabolomics method. The four brea ...
DOI:
10.1016/j.foodres.2016.06.027

30. Cocultivating rye with berseem clover affects benzoxazinoid production and expression of related genes

Author:
Monika Rakoczy‐Trojanowska; Magdalena Święcicka; Beata Bakera; Mariusz Kowalczyk; Anna Stochmal; Leszek Bolibok
Source:
Crop science 2020 v.60 no.6 pp. 3228-3246
ISSN:
0011-183X
Subject:
Secale cereale; Trifolium alexandrinum; allelopathy; benzoxazinoids; coculture; dimboa; gene expression; genes; genotype; germination; rye; secondary metabolites; soil; stress tolerance
Abstract:
... Benzoxazinoids (BXs) are secondary metabolites synthesized mainly by gramineous plants, including rye (Secale cereale L.), that play an important role in stress resistance and allelopathy. In the present work, the influence of cocultivation of rye with berseem clover (Trifolium alexandrinum L.) on the expression of BX synthesis‐regulating genes (ScBx1–ScBx5, ScIgl, and ScGT) and the content of six ...
DOI:
10.1002/csc2.20263

31. Comparative Analysis of Benzoxazinoid Biosynthesis in Monocots and Dicots: Independent Recruitment of Stabilization and Activation Functions

Author:
Regina Dick; Thomas Rattei; Martin Haslbeck; Wilfried Schwab; Alfons Gierl; Monika Frey
Source:
plant cell 2012 v.24 no.3 pp. 915-928
ISSN:
1040-4651
Subject:
benzoxazinoids; grasses; convergent evolution; biosynthesis; Consolida; enzymes; herbivores; Poaceae; genes; hydrolysis; pathogens
Abstract:
... Benzoxazinoids represent preformed protective and allelophatic compounds that are found in a multitude of species of the family Poaceae (Gramineae) and occur sporadically in single species of phylogenetically unrelated dicots. Stabilization by glucosylation and activation by hydrolysis is essential for the function of these plant defense compounds. We isolated and functionally characterized from t ...
DOI:
10.1105/tpc.112.096461
PubMed:
22415274
PubMed Central:
PMC3336114

32. Comparative transcriptomic and metabolic analysis of wild and domesticated wheat genotypes reveals differences in chemical and physical defense responses against aphids

Author:
Zhaniya S. Batyrshina; Beery Yaakov; Reut Shavit; Anuradha Singh; Vered Tzin
Source:
BMC plant biology 2020 v.20 no.1 pp. 19
ISSN:
1471-2229
Subject:
Rhopalosiphum padi; Triticum turgidum subsp. dicoccoides; benzoxazinoids; biosynthesis; durum wheat; germination; herbivores; hexaploidy; insects; metabolites; metabolome; pests; plant hormones; tetraploidy; transcriptome; transcriptomics; trichomes
Abstract:
... BACKGROUND: Young wheat plants are continuously exposed to herbivorous insect attack. To reduce insect damage and maintain their growth, plants evolved different defense mechanisms, including the biosynthesis of deterrent compounds named benzoxazinoids, and/or trichome formation that provides physical barriers. It is unclear whether both of these mechanisms are equally critical in providing an eff ...
DOI:
10.1186/s12870-019-2214-z

33. Concerted cis and trans effects underpin heightened defense gene expression in multi‐herbivore‐resistant maize lines

Author:
Meiyuan Ji; Huyen Bui; Ricardo A. Ramirez; Richard M. Clark
Source:
plant journal 2022 v.111 no.2 pp. 508-528
ISSN:
0960-7412
Subject:
Ostrinia nubilalis; Tetranychus urticae; benzoxazinoids; biosynthesis; corn; death; gene expression; herbivores; jasmonic acid; leaves; pests
Abstract:
... In maize (Zea mays ssp. mays), agriculturally damaging herbivores include lepidopteran insects, such as the European corn borer (Ostrinia nubilalis), and distantly related arthropods, like the two‐spotted spider mite (Tetranychus urticae). A small number of maize lines, including B96 and B75, are highly resistant to both herbivores, and B96 is also resistant to thrips. Using T. urticae as a repres ...
DOI:
10.1111/tpj.15812

34. Copper-mediated oxidative tandem reactions with molecular oxygen: synthesis of 2-arylbenzoxazinone derivatives from indoles

Author:
Mitsuaki Yamashita; Akira Iida
Source:
Tetrahedron letters 2014 v.55 no.18 pp. 2991-2993
ISSN:
0040-4039
Subject:
additives; benzoxazinoids; catalysts; chemical reactions; chemical structure; copper; indoles; oxidants; oxygen; solvents
Abstract:
... We developed an efficient method for the transformation of indoles by utilizing a copper catalyst and molecular oxygen as the oxidant. The transformation involves a tandem oxidative process of 2-arylindoles. Our reaction afforded a variety of N-benzoyl anthranilic acids and benzoxazinones. Our investigation revealed that the choice of solvent and additives is critical in these reactions. ...
DOI:
10.1016/j.tetlet.2014.03.128

35. Correlation of Deoxynivalenol Accumulation in Fusarium-Infected Winter and Spring Wheat Cultivars with Secondary Metabolites at Different Growth Stages

Author:
Thomas Etzerodt; Rene Gislum; Benet B. Laursen; Kirsten Heinrichson; Per L. Gregersen; Lise N. Jorgensen; Inge S. Fomsgaard
Source:
Journal of agricultural and food chemistry 2016 v.64 no.22 pp. 4545-4555
ISSN:
0021-8561
Subject:
Fusarium; Fusarium head blight; alpha-tocopherol; benzoxazinoids; beta-carotene; cultivars; deoxynivalenol; developmental stages; flavonoids; fungal diseases of plants; harvest date; lutein; multivariate analysis; phenolic acids; plant pathogenic fungi; secondary metabolites; spring wheat; winter wheat
Abstract:
... Fusarium infection in wheat causes Fusarium head blight, resulting in yield losses and contamination of grains with trichothecenes. Some plant secondary metabolites inhibit accumulation of trichothecenes. Eighteen Fusarium infected wheat cultivars were harvested at five time points and analyzed for the trichothecene deoxynivalenol (DON) and 38 wheat secondary metabolites (benzoxazinoids, phenolic ...
DOI:
10.1021/acs.jafc.6b01162

36. Current understanding of maize and rice defense against insect herbivores

Author:
Jinfeng Qi; Saif ul Malook; Guojing Shen; Lei Gao; Cuiping Zhang; Jing Li; Jingxiong Zhang; Lei Wang; Jianqiang Wu
Source:
Plant diversity 2018 v.40 no.4 pp. 189-195
ISSN:
2468-2659
Subject:
Arabidopsis; Oryza sativa; Zea mays; benzoxazinoids; corn; elicitors; natural enemies; oviposition; phytophagous insects; plant hormones; rice; secondary metabolites; secretion; terpenoids; tobacco; toxicity; transcription factors; transcriptomics; trypsin
Abstract:
... Plants have sophisticated defense systems to fend off insect herbivores. How plants defend against herbivores in dicotyledonous plants, such as Arabidopsis and tobacco, have been relatively well studied, yet little is known about the defense responses in monocotyledons. Here, we review the current understanding of rice (Oryza sativa) and maize (Zea mays) defense against insects. In rice and maize, ...
DOI:
10.1016/j.pld.2018.06.006
PubMed:
30740564
PubMed Central:
PMC6137261

37. Defensive changes in maize leaves induced by feeding of Mediterranean corn borer larvae

Author:
Rogelio Santiago; Ana Cao; Ana Butrón; Ana López-Malvar; Víctor M. Rodríguez; Germán V. Sandoya; Rosa A. Malvar
Source:
BMC plant biology 2017 v.17 no.1 pp. 44
ISSN:
1471-2229
Subject:
Sesamia nonagrioides; antibiosis; benzoxazinoids; cell walls; chemical elements; corn; crosslinking; defense mechanisms; genotype; hemicellulose; insects; jasmonic acid; larvae; larval development; leaves; methyl jasmonate; plant response; tissues
Abstract:
... BACKGROUND: Plants can respond to insect attack via defense mechanisms that reduce insect performance. In this study, we examined the effects of several treatments applied to two maize genotypes (one resistant, one susceptible) on the subsequent growth and survival of Sesamia nonagrioides Lef. (Mediterranean corn borer, MCB) larvae. The treatments were infestation with MCB larvae, application of M ...
DOI:
10.1186/s12870-017-0991-9
PubMed:
28202014
PubMed Central:
PMC5312564

38. Defensive weapons and defense signals in plants: Some metabolites serve both roles

Author:
Daniel Maag; Matthias Erb; Tobias G. Köllner; Jonathan Gershenzon
Source:
BioEssays 2015 v.37 no.2 pp. 167-174
ISSN:
0265-9247
Subject:
Aphidoidea; benzoxazinoids; callose; glucosinolates; herbivores; hormones; metabolites; pathogens; toxins
Abstract:
... The defense of plants against herbivores and pathogens involves the participation of an enormous range of different metabolites, some of which act directly as defensive weapons against enemies (toxins or deterrents) and some of which act as components of the complex internal signaling network that insures that defense is timed to enemy attack. Recent work reveals a surprising trend: The same compo ...
DOI:
10.1002/bies.201400124

39. Degradation of cytokinins by maize cytokinin dehydrogenase is mediated by free radicals generated by enzymatic oxidation of natural benzoxazinones

Author:
Frébortová, Jitka; Novák, Ondřej; Frébort, Ivo; Jorda, Radek
Source:
Plant journal 2010 v.61 no.3 pp. 467-481
ISSN:
0960-7412
Subject:
adenine; benzoxazinoids; corn; cytokinins; dimboa; free radicals; laccase; metabolism; oxidation; peroxidase; phloem; plant hormones; sap; seedlings
Abstract:
... Hydroxamic acid 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-one (DIMBOA) was isolated from maize phloem sap as a compound enhancing the degradation of isopentenyl adenine by maize cytokinin dehydrogenase (CKX), after oxidative conversion by either laccase or peroxidase. Laccase and peroxidase catalyze oxidative cleavage of DIMBOA to 4-nitrosoresorcinol-1-monomethyl ether (coniferron), which serves as a ...
DOI:
10.1111/j.1365-313X.2009.04071.x
PubMed:
19912568

40. Determination of benzoxazinoids in wheat and rye beers by HPLC-DAD and UPLC-QTOF MS

Author:
Juha-Matti Pihlava; Tuula Kurtelius
Source:
Food chemistry 2016 v.204 pp. 400-408
ISSN:
0308-8146
Subject:
agmatine; barley; beers; benzoxazinoids; flavonoids; high performance liquid chromatography; nitrogen; phenolic acids; rye; secondary metabolites; wheat
Abstract:
... Phenolic compounds in beer have received considerable interest. Besides the more typical phenolic acids and flavonoids, beer contains also lesser-known compounds, such as hordatines, their agmatine precursors and other phenolamines. Current work shows that beers brewed from wheat or rye malts, in addition to barley malts, contain benzoxazinoids, a group of nitrogen containing secondary metabolites ...
DOI:
10.1016/j.foodchem.2016.02.148

41. Dietary exposure to benzoxazinoids enhances bacteria‐induced monokine responses by peripheral blood mononuclear cells

Author:
Dres Damgaard; Bettina Margrethe Jensen; Yaseelan Palarasah; Michael Friberg Bruun Nielsen; Khem Bahadur Adhikari; Heidi Julius Schnoor; Nanna Juel‐Berg; Lars K. Poulsen; Inge S. Fomsgaard; Claus Henrik Nielsen
Source:
Molecular nutrition & food research 2015 v.59 no.11 pp. 2190-2198
ISSN:
1613-4125
Subject:
CD4-positive T-lymphocytes; Escherichia coli; Porphyromonas gingivalis; benzoxazinoids; blood serum; cell proliferation; dietary exposure; food intake; interleukin-1beta; interleukin-6; lipopolysaccharides; small cereal grains; tetanus; tumor necrosis factor-alpha; volunteers
Abstract:
... SCOPE: To examine potentially immunomodulating effects of dietary benzoxazinoids (BXs), present in cereal grains. METHODS AND RESULTS: Nineteen healthy volunteers were randomly distributed into two groups, who received diets with high or low content of BXs for 3 wk. After a week's wash‐out, the groups switched diets. Peripheral blood mononuclear cells (PBMCs) were stimulated with Porphyromonas gin ...
DOI:
10.1002/mnfr.201500151

42. Differential Stem Proteomics and Metabolomics Profiles for Four Wheat Cultivars in Response to the Insect Pest Wheat Stem Sawfly

Author:
Florent D. Lavergne; Corey D. Broeckling; Kitty J. Brown; Darren M. Cockrell; Scott D. Haley; Frank B. Peairs; Stephen Pearce; Lisa M. Wolfe; Courtney E. Jahn; Adam L. Heuberger
Source:
Journal of proteome research 2020 v.19 no.3 pp. 1037-1051
ISSN:
1535-3907
Subject:
Cephus cinctus; Triticum aestivum; alkaloids; benzoxazinoids; biochemical pathways; cultivars; enzyme inhibition; grain yield; insect pests; lignans; lipids; liquid chromatography; mass spectrometry; metabolites; metabolome; metabolomics; plant breeding; proteinases; proteins; proteome; proteomics; staple crops; wheat
Abstract:
... Common wheat (Triticum aestivum L.) is a global staple crop, and insect pests can impact grain yield. The wheat stem sawfly (Cephus cinctus, WSS) is a major wheat pest, and while partial resistance has been deployed by breeding for a solid-stem trait, this trait is affected by environment. Here, a proteomics and metabolomics study was performed on four wheat cultivars to characterize a molecular r ...
DOI:
10.1021/acs.jproteome.9b00561

43. Dihydrophenanthridine: A New and Easily Regenerable NAD(P)H Model for Biomimetic Asymmetric Hydrogenation

Author:
Chen Qing-An; Gao Kai; Duan Ying; Ye Zhi-Shi; Shi Lei; Yang Yan; Zhou Yong-Gui
Source:
Journal of the American Chemical Society 2012 v.134 no.4 pp. 2442-2448
ISSN:
1520-5126
Subject:
NADP (coenzyme); aromatic compounds; benzoxazinoids; biomimetics; enantiomers; hydrides; hydrogen; hydrogenation; models; quinolines; quinoxalines; reducing agents
Abstract:
... A new and easily regenerable NAD(P)H model 9,10-dihydrophenanthridine (DHPD) has been designed for biomimetic asymmetric hydrogenation of imines and aromatic compounds. This reaction features the use of hydrogen gas as terminal reductant for the regeneration of the DHPD under the mild condition. Therefore, the substrate scope is not limited in benzoxazinones; the biomimetic asymmetric hydrogenatio ...
DOI:
10.1021/ja211684v

44. Dissecting plant secondary metabolism – constitutive chemical defences in cereals

Author:
Anne E. Osbourn; Xiaoquan Qi; Belinda Townsend; Bo Qin
Source:
new phytologist 2003 v.159 no.1 pp. 101-108
ISSN:
0028-646X
Subject:
Arabidopsis thaliana; ancestry; benzoxazinoids; dissection; evolution; metabolism; pollination; rice; saponins; secondary metabolites; seed dispersal
Abstract:
... Collectively plants synthesise a diverse array of secondary metabolites. Secondary metabolites are well known as agents that mediate pollination and seed dispersal. They may also act as chemical defenses that ward off pests and pathogens or suppress the growth of neighbouring plants. The ability to synthesise particular classes of secondary metabolite is commonly restricted to selected plant group ...
DOI:
10.1046/j.1469-8137.2003.00759.x

45. Distribution of the tryptophan pathway-derived defensive secondary metabolites gramine and benzoxazinones in Poaceae

Author:
Yu Kokubo; Miho Nishizaka; Naoki Ube; Yukinori Yabuta; Shin-ichi Tebayashi; Kotomi Ueno; Shin Taketa; Atsushi Ishihara
Source:
Bioscience, biotechnology, and biochemistry 2017 v.81 no.3 pp. 431-440
ISSN:
1347-6947
Subject:
Hakonechloa macra; Hordeum; benzoxazinoids; biosynthesis; biotechnology; gramine; secondary metabolites; tryptophan
Abstract:
... The Poaceae is a large taxonomic group consisting of approximately 12,000 species and is classified into 12 subfamilies. Gramine and benzoxazinones (Bxs), which are biosynthesized from the tryptophan pathway, are well-known defensive secondary metabolites in the Poaceae. We analyzed the presence or absence of garamine and Bxs in 64 species in the Poaceae by LC-MS/MS. We found that Hordeum brachyan ...
DOI:
10.1080/09168451.2016.1256758

46. Double Smiles rearrangement of Passerini adducts towards benzoxazinones

Author:
E. Martinand-Lurin; A. Dos Santos; L. El Kaim; L. Grimaud; P. Retailleau
Source:
Chemical communications 2014 v.50 no.17 pp. 2214-2217
ISSN:
1364-548X
Subject:
X-ray diffraction; aromatic compounds; benzoxazinoids; chemical reactions
Abstract:
... A new straightforward access to benzoxazinones based on a three-component coupling is presented here. The mechanism of the whole process involves a double aryl transfer as clearly underlined by the X-ray diffraction analysis of the products. ...
DOI:
10.1039/c3cc49022j

47. Dynamic gene amplification and function diversification of grass-specific O-methyltransferase gene family

Author:
Zhen Liu; Miao Fan; Chao Li; Jian-Hong Xu
Source:
Genomics 2019 v.111 no.4 pp. 687-695
ISSN:
0888-7543
Subject:
S-adenosylmethionine; benzoxazinoids; biosynthesis; gene amplification; gene expression; genes; grasses; insect resistance; methyltransferases; phylogeny; roots; secondary metabolites; suberin
Abstract:
... The plant O-methyltransferases are dependent on S-Adenosyl-l-methionine, which can catalyze a variety of secondary metabolites. Here we identified different number of OMT genes from the respective grass genomes. Phylogenetic analysis showed that this OMT gene family is a grass-specific gene family that is different from COMT. Most of genes were expanded by tandem and segment duplication after the ...
DOI:
10.1016/j.ygeno.2018.04.005

48. Effect of Corn Root Exudates on the Degradation of Atrazine and Its Chlorinated Metabolites in Soils

Author:
K. Wenger; L. Bigler; M. J.-F. Suter; R. Schönenberger; S. K. Gupta; R. Schulin
Source:
Journal of environmental quality 2005 v.34 no.6 pp. 2187-2196
ISSN:
1537-2537
Subject:
Zea mays; atrazine; benzoxazinoids; corn; deethylatrazine; dimboa; exudation; growth chambers; hydrolysis; hydroponics; hydroxamic acids; hydroxylation; lactams; metabolites; nutrient solutions; plant age; root exudates; seedlings; soil; toxicity
Abstract:
... DIMBOA (3,4-dihydro-2,4-dihydroxy-7-methoxy-2H-1,4-benzoxazin-3-one), a major benzoxazinone of Poaceae plants, was isolated and purified from corn seedlings. The effect of isolated and purified DIMBOA on the degradation of atrazine [2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine], and its toxic breakdown products, desethylatrazine [2-chloro-4-amino-6-(isopropylamino)-s-triazine; DEA] and de ...
DOI:
10.2134/jeq2004.0409

49. Effects of benzoxazinoids in wheat residues may inhibit the germination, growth and gibberellin-induced α-amylase activity in rice

Author:
Yoko Ozaki; Hisashi Kato-Noguchi
Source:
Acta physiologiae plantarum 2016 v.38 no.1 pp. 24
ISSN:
0137-5881
Subject:
alpha-amylase; benzoxazinoids; crop rotation; germination; harvesting; rice; roots; seedling growth; seeds; soil; wheat; wheat straw
Abstract:
... There is a rotational cropping system of wheat and rice in many areas. Wheat plants contain significant amounts of glucopyranosides of 6-methoxy-benzoxazolin-2(3H)-one (MBOA) and benzoxazolin-2(3H)-one (BOA). After crop harvesting, MBOA and BOA are produced during the degradation process of wheat residues left in the field. The purpose of this study was evaluation for the effect of MBOA and BOA on ...
DOI:
10.1007/s11738-015-2041-2

50. Effects of benzoxazinoids on specialist and generalist Diabrotica species

Author:
J. C. Alouw; N. J. Miller
Source:
Journal of applied entomology 2015 v.139 no.6 pp. 424-431
ISSN:
0931-2048
Subject:
Diabrotica undecimpunctata howardi; Diabrotica virgifera virgifera; benzoxazinoids; biosynthesis; corn; growth and development; herbivores; insects; larval development; secondary metabolites
Abstract:
... Benzoxazinoids are constitutively produced secondary metabolites in maize that protect the plant from the negative effects of insect herbivores. In this study, we determined the effects of benzoxazinoids on the maize specialist Diabrotica virgifera virgifera and a congeneric generalist Diabrotica undecimpunctata howardi. We compared the survival, growth and development of larvae fed on maize line ...
DOI:
10.1111/jen.12194