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 term jasmonic acid Remove constraint Subject term: jasmonic acid Subject term Helianthus annuus Remove constraint Subject term: Helianthus annuus
Start Over

Search

18  Search Results

1 - 18 of 18
Number of results to display per page

Search Results

1. Physiological and Genetic Effects of Imazamox Treatment on Imidazolinone-Sensitive and Resistant Sunflower Hybrids

Author:
Hayati Arda; Armağan Kaya; Gülçin Alyuruk
Source:
Water, air, and soil pollution 2020 v.231 no.3 pp. 118
ISSN:
0049-6979
Subject:
Helianthus annuus; antioxidant enzymes; caffeic acid; catalase; ferulic acid; glutathione transferase; heat shock proteins; herbicide resistance; hybrids; imazamox; indole acetic acid; jasmonic acid; leaves; mitochondria; phytotoxicity; plant protection; quantitative polymerase chain reaction; reverse transcriptase polymerase chain reaction; salicylic acid; soil; superoxide dismutase; tandem mass spectrometry; weeds
Abstract:
... Use of herbicides is one of the most preferred options for crop protection against weeds. Imazamox is an imidazolinone (IMI)-group herbicide, and even low concentrations of imazamox might exhibit high biological activities on soil and plants. Therefore, in contrast to the conventional types of sunflowers that are sensitive to IMI-group herbicides, sunflowers that are resistive to IMI-group herbici ...
DOI:
10.1007/s11270-020-4439-8

2. Responses of sunflower induced by Sclerotinia sclerotiorum infection

Author:
Ren Na; Yanjie Luo; Haoyu Bo; Jian zhang; Ruifang Jia; Qinglin Meng; Hongyou Zhou; Jianjun Hao; Jun Zhao
Source:
Physiological and molecular plant pathology 2018 v.102 pp. 113-121
ISSN:
0885-5765
Subject:
Helianthus annuus; Sclerotinia sclerotiorum; callose; cell walls; cultivars; enzyme activity; fungal diseases of plants; gene expression regulation; genes; genetic markers; hydrogen peroxide; jasmonic acid; messenger RNA; plant pathogenic fungi; protein content; salicylic acid
Abstract:
... Sunflower (Helianthus annuus) can be infected by the fungal pathogen Sclerotinia sclerotiorum, but its susceptibility varies depending on the cultivars. The aim of this study was to characterize and compare the biochemical responses between the R and the S sunflower cultivars after inoculation with S. sclerotiorum. The biochemical activities were detected by measuring necrotic cell, callose deposi ...
DOI:
10.1016/j.pmpp.2017.12.004

3. Application of phytohormones during seed hydropriming and heat shock treatment on sunflower (Helianthus annuus L.) chilling resistance and changes in soluble carbohydrates

Author:
Krzysztof Górnik; Lesław B. Lahuta
Source:
Acta physiologiae plantarum 2017 v.39 no.5 pp. 118
ISSN:
0137-5881
Subject:
Helianthus annuus; catalase; cold stress; cold tolerance; cold treatment; heat stress; jasmonic acid; metabolism; physiological response; plant hormones; roots; salicylic acid; seedlings; seeds; sugars
Abstract:
... The objective of this study was to analyze the mechanism of some physiological processes accompanying acquisition of sunflower (Helianthus annuus L.) chilling resistance due to seeds hydropriming in the presence of salicylic acid, jasmonic acid, 24-epibrassinolide followed exposition of seeds to short-term heat shock treatment. The seeds were hydroprimed at 25 °C in limited amounts of water or sol ...
DOI:
10.1007/s11738-017-2413-x

4. Involvement of jasmonates in responses of sunflower (Helianthus annuus) seedlings to moderate water stress

Author:
Andrea Andrade; Maximiliano Escalante; Ana Vigliocco; María del Carmen Tordable; Sergio Alemano
Source:
Plant growth regulation 2017 v.83 no.3 pp. 501-511
ISSN:
0167-6903
Subject:
Helianthus annuus; aerial parts; biosynthesis; carotenoids; chlorophyll; drought; genes; inbred lines; jasmonic acid; mannitol; photosynthesis; pigments; placebos; plant hormones; plant response; protective effect; roots; seedlings; stomatal conductance; water content; water stress
Abstract:
... Jasmonates (JAs), a type of phytohormone, are involved in sensing and signaling of several environmental stresses (biotic and abiotic). Jasmonic acid (JA) has been suggested to function in plant responses to drought, because this type of stress induces expression of several genes that also respond to JA. We investigated the involvement of JA and its precursor (12-oxo-phytodienoic acid; OPDA) on se ...
DOI:
10.1007/s10725-017-0317-9

5. Transcriptome analysis reveals sunflower cytochrome P450 CYP93A1 responses to high salinity treatment at the seedling stage

Author:
Peng Wang; Lingling Ma; Ya Li; Shu’an Wang; Linfang Li; Rutong Yang
Source:
Genes & genomics 2017 v.39 no.6 pp. 581-591
ISSN:
1976-9571
Subject:
Helianthus annuus; seedlings; lipids; crop yield; roots; correlation; allene-oxide cyclase; hydroperoxide dehydratase; industry; jasmonic acid; transcriptome; gene expression regulation; transcriptomics; linoleate 13S-lipoxygenase; cytochrome P-450; salt stress; quantitative polymerase chain reaction; salt tolerance; salinity; reverse transcriptase polymerase chain reaction; unigenes
Abstract:
... Sunflower (Helianthus annuus) is an important global source of plant lipids and protein for food and other industries. Salinity is an abiotic stress that affects sunflower yield. Although recent studies have revealed that the cytochrome P450 (CYP) 93 family is involved in biotic and abiotic stresses, the relationship between the CYP93A gene and salt stress is not well understood in sunflower. In t ...
DOI:
10.1007/s13258-017-0523-x

6. Endophytic fungi promote plant growth and mitigate the adverse effects of stem rot: an example of Penicillium citrinum and Aspergillus terreus

Author:
Muhammad Waqas; Abdul Latif Khan; Muhammad Hamayun; Raheem Shahzad; Sang-Mo Kang; Jong-Guk Kim; In-Jung Lee
Source:
Journal of plant interactions 2015 v.10 no.1 pp. 280-287
ISSN:
1742-9153
Subject:
Aspergillus terreus; Athelia rolfsii; Helianthus annuus; Penicillium citrinum; adverse effects; agricultural industry; biotic stress; chlorophyll; disease incidence; disease resistance; disease severity; endophytes; fungi; fungicides; host plants; jasmonic acid; photosynthesis; plant growth; salicylic acid; stem rot; stomatal conductance; symbiosis
Abstract:
... Disease resistance is a highly desirable crop trait in the sustainable agricultural industry. Endophytic fungi with gibberellins-secreting potential are now widely known for their ability to stimulate plant growth, but their role in promoting disease resistance in plants has rarely been reported. We have studied the role of Penicillium citrinum LWL4 and Aspergillus terreus LWL5 in time-dependent m ...
DOI:
10.1080/17429145.2015.1079743

7. Endophytic infection alleviates biotic stress in sunflower through regulation of defence hormones, antioxidants and functional amino acids

Author:
Muhammad Waqas; Abdul Latif Khan; Muhammad Hamayun; Raheem Shahzad; Yoon-Ha Kim; Kyung-Sook Choi; In-Jung Lee
Source:
European journal of plant pathology 2015 v.141 no.4 pp. 803-824
ISSN:
0929-1873
Subject:
Alternaria alternata; Aspergillus terreus; Helianthus annuus; Penicillium citrinum; amino acids; antioxidants; biotic stress; catalase; catechol oxidase; crops; disease incidence; disease resistance; endophytes; free amino acids; fungi; fungicides; gibberellins; glutathione; growth promotion; hormones; host plants; industry; jasmonic acid; overwintering; oxidative stress; pathogens; peroxidase; plant growth; plant hormones; salicylic acid; siderophores; stress response; succinic acid; sustainable agriculture; symbiosis
Abstract:
... Eco-friendly strategies pertinent to disease resistance in crops are desired for sustainable agriculture as they minimize chemical input into the agriculture industry. Fungal endophytes with phytohormones secreting capacity are well known for their plant growth promotion but have never been reported previously for their favourable role in plant resistance against pathogens. We studied the role of ...
DOI:
10.1007/s10658-014-0581-8

8. The effect of seed conditioning, short-term heat shock and salicylic, jasmonic acid or brasinolide on sunflower (Helianthus annuus L.) chilling resistance and polysome formation

Author:
K. Górnik; A. Badowiec; S. Weidner
Source:
Acta physiologiae plantarum 2014 v.36 no.10 pp. 2547-2554
ISSN:
0137-5881
Subject:
Helianthus annuus; brassinolide; cell membranes; chilling injury; cold tolerance; cold treatment; electrolytes; heat; heat stress; imbibition; jasmonic acid; polyribosomes; root growth; salicylic acid; seedlings; seeds; water content
Abstract:
... The aim of this study was to develop the method for increasing resistance of sunflower seedlings ‘Wielkopolski’ to chilling. Seeds were conditioned at 25 °C for 2 days in water to 15, 20 and 25 % moisture content or in salicylic or jasmonic acid in concentration of 10⁻²; 10⁻³ and 10⁻⁴ M or brassinolide in concentration of 10⁻⁶; 10⁻⁸ and 10⁻¹⁰–15 % moisture content. After 2 days of incubation the c ...
DOI:
10.1007/s11738-014-1626-5

9. Effects of bacterial single inoculation and co-inoculation on growth and phytohormone production of sunflower seedlings under water stress

Author:
Paula Castillo; Maximiliano Escalante; Melina Gallardo; Sergio Alemano; Guillermina Abdala
Source:
Acta physiologiae plantarum 2013 v.35 no.7 pp. 2299-2309
ISSN:
0137-5881
Subject:
Achromobacter xylosoxidans; Bacillus pumilus; Helianthus annuus; abscisic acid; crops; jasmonic acid; plant organs; rooting; salicylic acid; seedlings; shoots; water content; water stress
Abstract:
... The purpose of the study was to measure shoot and root dry matter (DM) and production of auxins, salicylic acid, abscisic acid, and jasmonic acid in sunflower (Helianthus annuus L.) seedlings cultivated under water stress and singly inoculated or co-inoculated with Achromobacter xylosoxidans (SF2) and Bacillus pumilus (SF3 and SF4) bacterial strains. Shoot DM was higher in non-stressed seedlings t ...
DOI:
10.1007/s11738-013-1267-0

10. Sunflower root growth regulation: the role of jasmonic acid and its relation with auxins

Author:
Georgina Corti Monzón; Marcela Pinedo; Lorenzo Lamattina; Laura de la Canal
Source:
Plant growth regulation 2012 v.66 no.2 pp. 129-136
ISSN:
0167-6903
Subject:
Helianthus annuus; auxins; biotic stress; cell growth; cortex; growing media; hormones; ibuprofen; jasmonic acid; phenotype; root growth; root meristems; seedlings
Abstract:
... Jasmonates are lipid-derived hormones that act as signal molecules in abiotic and biotic stresses and influence several aspects of plant growth and development. In this work we have investigated the effect of jasmonic acid (JA) on the root architecture of Helianthus annuus seedlings and if JA and auxins interact to modulate the growth of the primary root (PR) and lateral roots (LR). The addition o ...
DOI:
10.1007/s10725-011-9636-4

11. HAHB10, a sunflower HD-Zip II transcription factor, participates in the induction of flowering and in the control of phytohormone-mediated responses to biotic stress

Author:
Dezar, Carlos A.; Giacomelli, Jorge I.; Manavella, Pablo A.; Ré, Delfina A.; Alves-Ferreira, Marcio; Baldwin, Ian T.; Bonaventure, Gustavo; Chan, Raquel L.
Source:
Journal of experimental botany 2011 v.62 no.3 pp. 1061-1076
ISSN:
0022-0957
Subject:
Arabidopsis; Cauliflower mosaic virus; Helianthus annuus; Pseudomonas syringae; biotic stress; complementary DNA; flowering; gene expression; genes; jasmonic acid; leaves; phenotype; photoperiod; plant damage; planting; salicylic acid; shoots; stamens; stress response; transcription factors; transgenic plants; vegetative growth
Abstract:
... The transcription factor HAHB10 belongs to the sunflower (Helianthus annuus) HD-Zip II subfamily and it has been previously associated with the induction of flowering. In this study it is shown that HAHB10 is expressed in sunflower leaves throughout the vegetative stage and in stamens during the reproductive stage. In short-day inductive conditions the expression of this gene is induced in shoot a ...
DOI:
10.1093/jxb/erq339
PubMed:
21030388

12. Endophytic Bacteria Improve Seedling Growth of Sunflower Under Water Stress, Produce Salicylic Acid, and Inhibit Growth of Pathogenic Fungi

Author:
Forchetti, Gabriela; Masciarelli, Oscar; Izaguirre, María J.; Alemano, Sergio; Alvarez, Daniel; Abdala, Guillermina
Source:
Current microbiology 2010 v.61 no.6 pp. 485-493
ISSN:
0343-8651
Subject:
Achromobacter xylosoxidans; Alternaria; Bacillus pumilus; Helianthus annuus; Sclerotinia; crop yield; crops; drought; endophytes; fungi; growth retardation; inbred lines; irrigation; jasmonic acid; microbial growth; pellets; plant growth-promoting rhizobacteria; salicylic acid; seedling growth; seedlings; water stress
Abstract:
... Endophytic bacterial strains SF2 (99.9% homology with Achromobacter xylosoxidans), and SF3 and SF4 (99.9% homology with Bacillus pumilus) isolated from sunflower grown under irrigation or drought were selected on the basis of plant growth-promoting bacteria (PGPB) characteristics. Aims of the study were to examine effects of inoculation with SF2, SF3, and SF4 on sunflower cultivated under water st ...
DOI:
10.1007/s00284-010-9642-1
PubMed:
20383767

13. Phospholipids are present in extracellular fluids of imbibing sunflower seeds and are modulated by hormonal treatments

Author:
Regente, Mariana; Monzón, Georgina Corti; de la Canal, Laura
Source:
Journal of experimental botany 2008 v.59 no.3 pp. 553-562
ISSN:
0022-0957
Subject:
Helianthus annuus; abscisic acid; apoplast; extracellular fluids; ionization; jasmonic acid; mass spectrometry; phospholipids; plasma membrane; polyacrylamide gel electrophoresis; seed extracts; seed treatment; seeds; stress response; sunflower seed
Abstract:
... Phospholipids are well known messengers involved in developmental and stress responses mediating intracellular signalling. It has been hypothesized that phospholipids exist which could participate in intercellular communication events through the apoplast of sunflower (Helianthus annuus) seeds. Here it is shown that extracellular washing fluids (EWFs) obtained from seeds imbibed for 2 h contain di ...
DOI:
10.1093/jxb/erm329
PubMed:
18212025

14. Endophytic bacteria in sunflower (Helianthus annuus L.): isolation, characterization, and production of jasmonates and abscisic acid in culture medium

Author:
G. Forchetti; O. Masciarelli; S. Alemano; D. Alvarez; G. Abdala
Source:
Applied microbiology and biotechnology 2007 v.76 no.5 pp. 1145-1152
ISSN:
0175-7598
Subject:
Achromobacter; Alcaligenes; Alternaria; Bacillus pumilus; Helianthus annuus; Sclerotinia sclerotiorum; abscisic acid; bacteria; catalase; crops; culture media; drought; endophytes; fungi; growth retardation; irrigation; irrigation water; jasmonic acid; phosphates; sequence homology; siderophores; soil sampling; solubilization; vegetative growth; water stress
Abstract:
... This study was designed to isolate and characterize endophytic bacteria from sunflower (Helianthus annuus) grown under irrigation and water stress (drought) conditions, to analyze growth of isolated bacteria under drought condition, and to evaluate the ability of bacteria isolated from plants cultivated under drought to produce jasmonates (JAs) and abscisic acid (ABA). Bacteria were isolated from ...
DOI:
10.1007/s00253-007-1077-7
PubMed:
17657487

15. Molecular analysis of resistance mechanisms to Orobanche cumana in sunflower

Author:
Letousey, P.; de Zélicourt, A.; Vieira Dos Santos, C.; Thoiron, S.; Monteau, F.; Simier, P.; Thalouarn, P.; Delavault, P.
Source:
Plant pathology 2007 v.56 no.3 pp. 536-546
ISSN:
0032-0862
Subject:
1,3-beta-glucan synthase; Helianthus annuus; Orobanche cernua; biochemical pathways; callose; complementary DNA; ethylene; gas chromatography-mass spectrometry; gene overexpression; genes; genetic markers; genotype; glutathione transferase; jasmonic acid; methionine synthase; microorganisms; necrosis; parasites; phenylpropanoids; reactive oxygen species; resistance mechanisms; reverse transcriptase polymerase chain reaction; salicylic acid; suppression subtractive hybridization
Abstract:
... Resistance to the dicotyledenous parasite Orobanche cumana in sunflower is characterized by a low number of parasitic attachments and a confinement of the parasite in host tissues leading to its necrosis. To help understand what determines such resistance mechanisms, molecular, biochemical and histological approaches were employed before (early response) and after (late response) attachment of the ...
DOI:
10.1111/j.1365-3059.2007.01575.x

16. The CBEL elicitor of Phytophthora parasitica var. nicotianae activates defence in Arabidopsis thaliana via three different signalling pathways

Author:
Khatib, M.; Lafitte, C.; Esquerre-Tugaye, M.T.; Bottin, A.; Rickauer, M.
Source:
New phytologist 2004 v.162 no.2 pp. 501-510
ISSN:
0028-646X
Subject:
Arabidopsis thaliana; transgenic plants; resistance mechanisms; disease resistance; signal transduction; salicylic acid; jasmonic acid; ethylene; plant pathogenic fungi; fungal proteins; glycoproteins; Nicotiana tabacum; tobacco; Helianthus annuus; Zinnia violacea; Phaseolus vulgaris; Pisum sativum; peas; gene expression regulation; nucleotide sequences
DOI:
10.1111/j.1469-8137.2004.01043.x

17. Influence of cytokinins on the methyl jasmonate-promoted senescence in Helianthus annuus cotyledons

Author:
Naik, G.R.; Mukherjee, I.; Reid, D.M.
Source:
Plant growth regulation 2002 v.38 no.1 pp. 61-68
ISSN:
0167-6903
Subject:
kinetin; ethylene; 1-aminocyclopropane-1-carboxylic acid; Helianthus annuus; dose response; biosynthesis; protein content; catalase; aminocyclopropanecarboxylate oxidase; jasmonic acid; zeatin; superoxide dismutase; cotyledons; benzyladenine; chemical constituents of plants; enzyme activity; chlorophyll
Abstract:
... Cotyledons of seven-day-old sunflower seedlings were pretreated with cytokinins prior to exposure to methyl jasmonate (MeJA). The rate of senescence was then followed by measuring chlorophyll loss, electrolyte leakage, ethylene production, and 1-aminocyclopropane-1-carboxylase (ACC) oxidase activity. MeJA promoted all these senescence parameters and the MeJA effects were partially blocked by cytok ...

18. Importance of the chiral centers of jasmonic acid in the responses of plants. Activities and antagonism between natural and synthetic analogs

Author:
Holbrook, L.; Tung, P.; Ward, K.; Reid, D.M.; Abrams, S.; Lamb, N.; Quail, J.W.; Moloney, M.M.
Source:
Plant physiology 1997 v.114 no.2 pp. 419-428
ISSN:
0032-0889
Subject:
Helianthus annuus; Brassica napus; measurement; chemical degradation; dose response; jasmonic acid; gene expression; Triticum aestivum; Nicotiana tabacum; esters; stereochemistry; enzyme activity; chemical structure; seed germination; transgenic plants; cotyledons; proteinase inhibitors; reporter genes; chemical constituents of plants; chlorophyll; beta-glucuronidase
Abstract:
... The importance of the two chiral centers at C-3 and C-7 in the molecular structure of jasmonic acid in plant responses was investigated. We separated methyl jasmonate (MeJA) into (3R)- and (3S)-isomers with a fixed stereochemistry at C-3, but epimerization at C-7 is possible. The four isomers of the nonepimerizable analog 7-methyl MeJA were synthesized. These six esters and their corresponding aci ...