nacl胁迫下24-表油菜素内酯对辣椒生长、叶绿素、电解质泄漏和脯氨酸的影响

Q3 Agricultural and Biological Sciences Eurasian Journal of Biosciences Pub Date : 2010-07-01 DOI:10.5053/EJOBIOS.2010.4.0.12
S. I. M. Houimli, M. Denden, Bouthaina Dridi Mouhandes
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引用次数: 97

摘要

油菜素内酯是一种类固醇植物激素,具有克服植物环境胁迫的能力。通过对辣椒生长、叶绿素、电解质泄漏和脯氨酸等生理参数的测定,研究了24-表油菜素内酯对辣椒耐盐性的诱导作用。辣椒。在NaCl存在或不存在的情况下,用24-表油菜素内酯喷洒Beldi幼苗,并在处理28天后取样。对盐胁迫下培养物的分析表明,盐胁迫下培养物的生物量和叶绿素显著下降,而电解质泄漏和脯氨酸浓度显著增加。然而,施用24-表油菜素内酯显著改善了盐度对检测参数的不利影响,证实了先前作者的假设,即外源施用24-表油菜素内酯可以促进胁迫植物的生长并保护细胞膜的完整性。
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Effects of 24-epibrassinolide on growth, chlorophyll, electrolyte leakage and proline by pepper plants under NaCl-stress
Brassinosteroids are steroidal phytohormones that have the ability to overcome plant environmental stress. This study was carried out to investigate the role of 24-epibrassinolide in inducing pepper plant salt tolerance as measured by a range of physiological parameters: growth, chlorophyll, electrolyte leakage and proline. Capsicum annuum cv. Beldi seedlings were sprayed with 24-epibrassinolide both in the presence or the absence of NaCl and were sampled, 28 days after treatments. As a result of analysing the cultures under salinity stress, it was determined that the biomass and the chlorophyll decreased significantly, while the electrolyte leakage and the proline concentration increased considerably under salinity stress. However, the application of 24-epibrassinolide significantly ameliorated the adverse effects of salinity on the examined parameters, confirming the suppositions of previous authors who have claimed that exogenously applied 24-epibrassinolide can increase growth and protect the integrity of the cellular membrane in stressed plants.
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来源期刊
Eurasian Journal of Biosciences
Eurasian Journal of Biosciences Agricultural and Biological Sciences-Agricultural and Biological Sciences (all)
CiteScore
1.20
自引率
0.00%
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0
期刊介绍: EurAsian Journal of BioSciences (Abbrev. Eurasia J Biosci or EJOBIOS) is an international, refereed electronic journal. It publishes the results of original research in the field of biological sciences restricted tomorphology, physiology, genetics, taxonomy, ecology and biogeography of both prokaryotic and eucaryotic organisms. The journal encourages submission of manuscripts dealing with plant biology, animal biology, plant physiology, microbiology, hydrobiology, ecology and environmental science, ethnobiology, biodiversity and conservation biology. EurAsian Journal of BioSciences publishes original articles in the following areas: -Agriculture, Fisheries & Food -Anatomy & Morphology -Behavioural Sciences -Biology, Biochemistry and Biotechnology -Biophysics -Biology Education -Cellular Biology and Anatomical Sciences -Ecology, Evolution & Environment -Entomology -Forestry -General Biology -Genetics & Heredity -Life Sciences - Other topics -Microbiology and Immunology -Molecular Biology -Mycology -Palaeontology -Parasitology -Pharmacology & Pharmacy -Physiology and Related Sciences -Plant Sciences -Toxicology -Veterinary Sciences -Virology -Zoology
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