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1. Cytogenetic characterization of Mimosa pudica L (Fabaceae): heterochromatin distribution, rDNA mapping and genome size

Author:
Aryane Campos Reis; Saulo Marçal de Sousa
Source:
Nucleus 2022 v.65 no.2 pp. 179-185
ISSN:
0029-568X
Subject:
epicotyls,   etc   ; Mimosa pudica; fish; flow cytometry; fluorescence; heterochromatin; hybridization; hypocotyls; karyotyping; nuclear genome; silver;     Show all 11 Subjects
Abstract:
... Chromosomal details and linear differentiation, including heterochromatin distribution, silver staining based characterization of NOR, delineation of chromomycin (CMA₃) and 4′,6-diamidino-2-phenylindole (DAPI) bands and FISH based localization of 45 S and 5 S rDNA sites are investigated for the first time for Mimosa pudica. All the three populations examined showed 2n = 4x = 52 with karyotype cons ...
DOI:
10.1007/s13237-022-00387-2

2. Exogenous Nitric Oxide Confers Tolerance to Cr(VI) in Maize (Zea mays L.) Seedlings by Modulating Endogenous Oxido-Nitrosative Events

Author:
Oussama Kharbech; Marouane Ben Massoud; Abdelilah Chaoui; Luis Alejandro Jose Mur; Wahbi Djebali
Source:
Journal of plant growth regulation 2022 v.41 no.4 pp. 1773-1785
ISSN:
0721-7595
Subject:
epicotyls,   etc   ; NAD(P)H oxidase (H2O2-forming); Zea mays; arginine; chromium; corn; hydrogen peroxide; nitroprusside; plant growth; proline; seedlings; spermidine; spermine; thiols; toxicity; viability;     Show all 16 Subjects
Abstract:
... The use of exogenous compounds such as ‘gasotransmitter’ molecules is a well-established agronomic strategy to improve the crop tolerance to environmental stresses. In this current work, when Cr (200 µM) was combined with the nitric oxide (NO) generator sodium nitroprusside SNP, 500 µM) there was a suppression of metal-induced alterations in embryo growth. Exogenous NO produced by SNP reduced the ...
DOI:
10.1007/s00344-021-10411-5

3. Nitric oxide donor, sodium nitroprusside modulates hydrogen sulfide metabolism and cysteine homeostasis to aid the alleviation of chromium toxicity in maize seedlings (Zea mays L.)

Author:
Oussama Kharbech; Lamia Sakouhi; Yethreb Mahjoubi; Marouane Ben Massoud; Ahmed Debez; Ons Talbi Zribi; Wahbi Djebali; Abdelilah Chaoui; Luis Alejandro Jose Mur
Source:
Journal of hazardous materials 2022 v.424 pp. 127302
ISSN:
0304-3894
Subject:
epicotyls,   etc   ; Zea mays; acetyltransferases; biomass; chromium; corn; cysteine; glutamic acid; glutathione; homeostasis; hydrogen sulfide; metabolism; nitric oxide; nitroprusside; osmotic pressure; oxidoreductases; proline; protective effect; seedlings; serine; thiols; toxicity; water potential;     Show all 23 Subjects
Abstract:
... The current research aimed to assess the protective role of nitric oxide (NO) against chromium (Cr) toxicity in maize seedlings. Chromium (200 µM) lowered osmotic potential in epicotyls and mostly in radicles (by 38% and 63%, respectively) as compared to the control. Sodium nitroprusside (SNP, NO donor) restored seedling biomass (+90% for both organs) and water potential, whereas application of Nω ...
DOI:
10.1016/j.jhazmat.2021.127302

4. Proteomic Analysis of Desiccation Tolerance and Its Re-Establishment in Different Embryo Axis Tissues of Germinated Pea Seeds

Author:
Wei-Qing Wang; Yue Wang; Xian-Jun Song; Qi Zhang; Hong-Yan Cheng; Jun Liu; Song-Quan Song
Source:
Journal of proteome research 2021 v.20 no.5 pp. 2352-2363
ISSN:
1535-3907
Subject:
epicotyls,   etc   ; calcium; drought tolerance; ethylene; hypocotyls; models; peas; proteome; proteomics; rehydration; research; stress response;     Show all 12 Subjects
Abstract:
... The model of loss and re-establishment of desiccation tolerance (DT) in germinated seeds has been well developed to explore the mechanisms associated with DT, but little attention has been paid to the tissue variation in this model. Herein, we investigated DT in different embryo axis tissues of germinated pea seeds and its re-establishment by poly(ethylene glycol) (PEG) treatment and then employed ...
DOI:
10.1021/acs.jproteome.0c00860

5. In vitro Organogenesis and plantlets regeneration in pectinifera (Citrus pectinifera) rootstock

Author:
Urmila Devi; Harinder Singh Rattanpal
Source:
Agricultural research journal 2022 v.59 no.1 pp. 30-36
ISSN:
2395-146X
Subject:
epicotyls,   etc   ; Citrus; agricultural research; cotyledons; culture media; genetically modified organisms; hypocotyls; leaf density; organogenesis; plantlets; rootstocks;     Show all 11 Subjects
Abstract:
... In the current work, attempts were made to investigate culture of epicotyls segments with three different cuts (i.e. transverse cut, oblique cut, longitudinal cut), hypocotyls and cotyledon segments derived from in vitro seedlings of pectinifera rootstock. Effect of several factors i.e. culture medium, explants types on regeneration response were examined based on parameters, percentage of explant ...
DOI:
10.5958/2395-146X.2022.00006.0

6. Cutin:xyloglucan transacylase (CXT) activity covalently links cutin to a plant cell-wall polysaccharide

Author:
Anzhou Xin; Stephen C. Fry
Source:
Journal of plant physiology 2021 v.262 pp. 153446
ISSN:
0176-1617
Subject:
epicotyls,   etc   ; cell walls; chemical bonding; chromatography; cutin; enzymes; epidermis (plant); oligosaccharides; pH; peas; plant physiology; polyesters; tomatoes; xyloglucans;     Show all 14 Subjects
Abstract:
... The shoot epidermal cell wall in land-plants is associated with a polyester, cutin, which controls water loss and possibly organ expansion. Covalent bonds between cutin and its neighbouring cell-wall polysaccharides have long been proposed. However, the lack of biochemical evidence makes cutin–polysaccharide linkages largely conjectural. Here we optimised a portfolio of radiochemical assays to loo ...
DOI:
10.1016/j.jplph.2021.153446

7. Biallelic Editing of the LOB1 Promoter via CRISPR/Cas9 Creates Canker-Resistant ‘Duncan’ Grapefruit

Author:
Hongge Jia; Ahmad A. Omar; Vladimir Orbović; Nian Wang
Source:
Phytopathology 2022 v.112 no.2 pp. 308-314
ISSN:
0031-949X
Subject:
epicotyls,   etc   ; CRISPR-Cas systems; Citrus paradisi; Xanthomonas citri subsp. citri; citrus canker; disease resistance; grapefruits; homozygosity; mutants; plant pathology; promoter regions;     Show all 11 Subjects
Abstract:
... Citrus canker caused by Xanthomonas citri subsp. citri is one of the most devastating citrus diseases worldwide. Generating disease-resistant citrus varieties is considered one of the most efficient and environmentally friendly measures for controlling canker. X. citri subsp. citri causes canker symptoms by inducing the expression of canker susceptibility gene LOB1 via PthA4, a transcription activ ...
DOI:
10.1094/PHYTO-04-21-0144-R

8. Antibacterial and antioxidant properties of humic substances from composted agricultural biomasses

Author:
Mariavittoria Verrillo; Melania Salzano; Davide Savy; Vincenzo Di Meo; Massimiliano Valentini; Vincenza Cozzolino; Alessandro Piccolo
Source:
Chemical and biological technologies in agriculture 2022 v.9 no.1 pp. 28
ISSN:
2196-5641
Subject:
epicotyls,   etc   ; Enterococcus faecalis; Gram-positive bacteria; Staphylococcus aureus; agriculture; antibacterial properties; antibiotic resistance; antioxidant activity; antioxidants; artichokes; basil; gel chromatography; hydrophobicity; lignin; nuclear magnetic resonance spectroscopy; pepper; seed germination;     Show all 17 Subjects
Abstract:
... BACKGROUND: Bioactive components isolated from composted agricultural biomasses have been receiving progressive attention, because they may improve the antibiotic susceptibility of drug resistant bacterial strains. Here, three different humic substances (HS) were isolated from composted artichoke (HS-CYN) and pepper (HS-PEP) wastes, and from coffee grounds (HS-COF), and characterized by infrared s ...
DOI:
10.1186/s40538-022-00291-6

9. Efficiency of in vitro culture techniques applied to soybean (Glycine max (L.) Merr.) accessions from the VIR collection

Author:
E. S. Korshikova; K. M. Ershova; Yu. A. Moksheninova; Yu. V. Ukhatova
Source:
Trudy po prikladnoj botanike, genetike i selekcii 2021 v.182 no.4 pp. 137-142
ISSN:
2619-0982
Subject:
epicotyls,   etc   ; Glycine max; Russia; callus formation; cotyledons; high-yielding varieties; hydrogen peroxide; hypocotyls; leaves; plant germplasm; soybeans;     Show all 11 Subjects
Abstract:
... Using a wide range of modern biotechnologies and genetic techniques to study plant germplasm accessions held by VIR makes it possible to procure valuable results, required for the development of new high-yielding cultivars adapted to adverse environmental conditions and possessing specified technological properties, particularly to identify and mark new genes and alleles useful for plant breeding. ...
DOI:
10.30901/2227-8834-2021-4-137-142

10. The Effect of TIBA and NPA on Shoot Regeneration of Cannabis sativa L. Epicotyl Explants

Author:
Mariola Dreger; Milena Szalata
Source:
Agronomy 2021 v.12 no.1 pp. -
ISSN:
2073-4395
Subject:
epicotyls,   etc   ; Cannabis sativa; agronomy; apical dominance; cosmetics; cultivars; culture media; dietary supplements; hemp; indole butyric acid; micropropagation; thidiazuron;     Show all 12 Subjects
Abstract:
... Industrial hemp (Cannabis sativa L., family Cannabaceae) is a multi-purpose crop, used in the production of food, nutraceuticals, cosmetics and medicines. Therefore, development of new varieties with specific chemical profiles is necessary. In vitro culture methods could be complementary to conventional breeding and a useful tool for large-scale propagation. Strong apical dominance is considered a ...
DOI:
10.3390/agronomy12010104

11. Seedling morphology of some Brazilian taxa of Aeschynomene (Leguminosae) and its systematic relevance

Author:
Rodrigo Schütz Rodrigues; Leonardo da Silva Hartmann; Andréia Silva Flores
Source:
Flora 2019 v.255 pp. 69-79
ISSN:
0367-2530
Subject:
epicotyls,   etc   ; Aeschynomene; Dalbergia; Machaerium; Neotropics; cotyledons; hypocotyls; polyphyly; seedlings; Brazil;     Show all 10 Subjects
Abstract:
... Although seedling morphology studies have contributed to the systematics of Leguminosae at different taxonomic levels, seedlings are poorly known in Aeschynomene, a pantropical genus with approximately 180 species. Aeschynomene traditionally comprises two sections in the Neotropics, A. sect. Aeschynomene and A. sect. Ochopodium. However, molecular phylogenies have indicated that the genus is proba ...
DOI:
10.1016/j.flora.2019.04.002

12. Bioactivity and antimicrobial properties of chemically characterized compost teas from different green composts

Author:
Mariavittoria Verrillo; Melania Salzano; Vincenza Cozzolino; Riccardo Spaccini; Alessandro Piccolo
Source:
Waste management 2021 v.120 pp. 98-107
ISSN:
0956-053X
Subject:
epicotyls,   etc   ; Escherichia coli; Gram-negative bacteria; Klebsiella pneumoniae; Pseudomonas aeruginosa; antioxidant activity; antioxidants; artichokes; basil; dietary supplements; humans; hydrophobicity; infrared spectroscopy; lignin; minimum inhibitory concentration; nuclear magnetic resonance spectroscopy; pepper; phytotoxicity; pyrolysis gas chromatography; seed germination; waste management; water solubility;     Show all 22 Subjects
Abstract:
... The acknowledgement of bioactive functions of compost teas promotes the research on characteristics and potential application of these heterogeneous water-soluble extracts from recycled biomasses. In this work, compost teas were isolated from on-farm composts made with agro-industrial residues of artichoke, pepper and coffee husks with the aim to evaluate the structural-activity relationship of di ...
DOI:
10.1016/j.wasman.2020.11.013

13. Growth and cortical microtubule dynamics in shoot organs under microgravity and hypergravity conditions

Author:
Kouichi Soga; Kazuyuki Wakabayashi; Takayuki Hoson
Source:
Plant signaling & behavior 2018 v.13 no.1 pp. e1422468
ISSN:
1559-2324
Subject:
epicotyls,   etc   ; anisotropy; hypocotyls; microgravity; microtubules;     Show all 5 Subjects
Abstract:
... The body shape of plants varied in proportion to the logarithm of the magnitude of gravity in the range from microgravity to hypergravity to resist the gravitational force. Here we discuss the roles of cortical microtubule and 65 kDa microtubule-associated protein-1 (MAP65-1) in gravity-induced modification of growth anisotropy. Microgravity stimulated elongation growth and suppressed lateral expa ...
DOI:
10.1080/15592324.2017.1422468
PubMed:
29286875
PubMed Central:
PMC5790418

14. Implication of cAMP in Regulation of Hydrogen Peroxide Level in Pea Seedling Roots under Biotic Stress

Author:
L. A. Lomovatskaya; O. V. Kuzakova; A. M. Goncharova; A. S. Romanenko
Source:
Russian journal of plant physiology 2020 v.67 no.3 pp. 435-442
ISSN:
1021-4437
Subject:
epicotyls,   etc   ; Clavibacter michiganensis subsp. sepedonicus; Pseudomonas syringae pv. pisi; Rhizobium leguminosarum; adenylate cyclase; biotic stress; cyclic AMP; hydrogen peroxide; microorganisms; peas; root growth; roots; second messengers; seedlings; suramin;     Show all 15 Subjects
Abstract:
... Relationships between changes in the levels of intracellular cAMP and H₂O₂ were studied in various growth zones of pea (Pisumsativum L.) seedling roots upon infection with Rhizobium leguminosarum bv. viceae (Rlv), Pseudomonas syringae pv. pisi (Psp), or Clavibacter michiganensis ssp. sepedonicus (Cms). Previous studies have shown that these root zones are differentially sensitive to Rlv. In the pr ...
DOI:
10.1134/S1021443720020107

15. Responses of seedling growth and survival to post‐germination cotyledon removal: An investigation among seven oak species

Author:
Xianfeng Yi; Andrew W. Bartlow; Rachel Curtis; Salvatore J. Agosta; Michael A. Steele
Source:
journal of ecology 2019 v.107 no.4 pp. 1817-1827
ISSN:
0022-0477
Subject:
epicotyls,   etc   ; Quercus alba; cotyledons; forest regeneration; fruits; germination; leaves; nutrients; plant establishment; predation; rodents; seedling growth; seedlings;     Show all 13 Subjects
Abstract:
... Rodents regularly rely on emerged epicotyls to locate and remove cotyledons still containing valuable nutrients. However, the extent to which acorn characteristics influence tolerance to post‐germination predation has received little attention. Here, we investigated the impact of cotyledon removal following epicotyl emergence on seedling performance and survival of seven oak (Quercus) species. We ...
DOI:
10.1111/1365-2745.13153

16. Rhamnogalacturonan I galactosyltransferase: Detection of enzyme activity and its hyperactivation

Author:
Naoki Matsumoto; Yuto Takenaka; Bussarin Wachananawat; Hiroyuki Kajiura; Tomoya Imai; Takeshi Ishimizu
Source:
Plant physiology and biochemistry 2019 v.142 pp. 173-178
ISSN:
0981-9428
Subject:
epicotyls,   etc   ; Golgi apparatus; Vigna angularis; arabinans; arabinogalactans; cationic surfactants; cell walls; electrolytes; enzyme activity; galactosyltransferases; galacturonic acid; oligosaccharides; pectins; polymerization; rhamnose;     Show all 15 Subjects
Abstract:
... Rhamnogalacturonan I (RG-I), one of the pectic components of the plant cell wall, is composed of a backbone of repeating disaccharide units of rhamnose and galacturonic acid, and side chains, such as galactans, arabinans, and arabinogalactans. The activity of RG-I galactosyltransferase, which transfers galactosyl residues to rhamnosyl residues in the RG-I backbone, has not been detected until now. ...
DOI:
10.1016/j.plaphy.2019.07.008

17. Evaluation of morphological traits, hormonal metabolism, and transcriptional abundance in bitter gourd (Momordica charantia L.) plants in response to ethephon inducement

Author:
Yuefei Li; Jie Wu; Yong Fan; Xiang Li; Lijie Wang; Haobo Yue; Xu Kou; Ying Ma
Source:
Scientia horticulturae 2021 v.282 pp. 110033
ISSN:
0304-4238
Subject:
epicotyls,   etc   ; 1-aminocyclopropane-1-carboxylate synthase; Momordica charantia; biosynthesis; ethephon; ethylene; ethylene production; female flowers; flowering; genes; gibberellic acid; high performance liquid chromatography; indole acetic acid; plant height; root growth; signal transduction; tandem mass spectrometry; transcription (genetics);     Show all 18 Subjects
Abstract:
... Bitter gourd (Momordica charantia L.) is sensitive to phytohormone treatment for organ development and growth. In light of this, we performed this study to evaluate the influence of ethephon at physiological and transcriptional levels. High performance liquid chromatography – tandem mass spectrometry (HPLC-MS/MS) has demonstrated that ethylene biosynthesis was enhanced by increased ACC synthase (A ...
DOI:
10.1016/j.scienta.2021.110033

18. A gravitropic stimulation-induced growth inhibitor, β-(isoxazolin-5-on-2yl)-alanine, is a possible mediator of negative gravitropic bending of epicotyls in etiolated Pisum sativum seedlings

Author:
Tsuyoshi Hasegawa; Yume Omiya; Mayumi Koide; Hideyuki Shigemori; Junichi Ueda; Koji Hasegawa; Kensuke Miyamoto
Source:
Plant growth regulation 2017 v.82 no.3 pp. 431-438
ISSN:
0167-6903
Subject:
epicotyls,   etc   ; Pisum sativum; etiolation; gravitropism; mutants; peas; seedlings; Alaska;     Show all 8 Subjects
Abstract:
... Negative gravitropic bending and its possible mediator in etiolated Alaska pea seedlings were intensively studied in comparison with seedlings of an agravitropic mutant, ageotropum. When 3.5-day-old etiolated Alaska seedlings were horizontally placed, the growth suppression at the upper side of the epicotyls began 10 min after the onset of the gravitropic stimulation, whereas the growth accelerati ...
DOI:
10.1007/s10725-017-0269-0

19. Regulation of asymmetric polar auxin transport by PsPIN1 in endodermal tissues of etiolated Pisum sativum epicotyls: focus on immunohistochemical analyses

Author:
Motoshi Kamada; Kensuke Miyamoto; Mariko Oka; Junichi Ueda; Akira Higashibata
Source:
Journal of plant research 2018 v.131 no.4 pp. 681-692
ISSN:
0918-9440
Subject:
epicotyls,   etc   ; messenger RNA; rockwool; peas; immunohistochemistry; polyclonal antibodies; seedlings; auxins; etiolation; plasma membrane; Pisum sativum; tissues; Alaska;     Show all 13 Subjects
Abstract:
... This manuscript reports the production of specific polyclonal antibodies for PsPIN1, a putative auxin efflux carrier in Alaska pea (Pisum sativum L.) plants, and the cellular immunolocalization of PsPIN1. When pea seeds were set with the seed axis horizontal to the upper surface of a rockwool block, and allowed to germinate and grow for 3 days in the dark, the epicotyl grew upward. On the other ha ...
DOI:
10.1007/s10265-018-1031-z

20. Distinct UV-A or UV-B irradiation induces protochlorophyllide photoreduction and bleaching in dark-grown pea (Pisum sativum L.) epicotyls

Author:
Anna Laura Erdei; Annamária Kósa; Béla Böddi
Source:
Photosynthesis research 2019 v.140 no.1 pp. 93-102
ISSN:
0166-8595
Subject:
epicotyls,   etc   ; Pisum sativum; ambient temperature; bleaching; etiolation; fluorescence; germination; irradiation; lighting; peas; photons; photosynthesis; protochlorophyll; ultraviolet radiation; wavelengths;     Show all 15 Subjects
Abstract:
... The effects of distinct UV-A and UV-B radiations were studied on etiolated pea (Pisum sativum L.) epicotyls. Emission spectra of the native protochlorophyll and protochlorophyllide forms were measured when epicotyls were excited with 360 or 300 nm light. The UV-A (360 nm) excited mainly the non-enzyme-bound monomers of protochlorophyll and protochlorophyllide and the UV-B (300 nm) excited preferen ...
DOI:
10.1007/s11120-018-0584-y