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2019 | 41 | 05 |
Tytuł artykułu

Seed quality deterioration dynamics for isoflavones biosynthesis in soybean (Glycine max L. Merr.) seeds against field mildew stress

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Continuous rainfall during the harvest period of soybean leads to the delayed harvest of mature seeds and favors the infection of field mold that eventually causes seed mildew in the field under high humid conditions. Soybean isoflavones are a subgroup of flavonoids which possess crucial roles in the responses of soybean to multiple abiotic and/or biotic stresses. To fully reveal the role of isoflavones in the responses of soybean seeds to filed mildew (FM) stress, two soybean genotypes with different resistance to FM stress were treated in a controlled greenhouse which provided high humid conditions in this current research. The dynamic changes of isoflavones contents and the expression levels of four major genes involved in isoflavones biosynthesis pathway were measured by liquid chromatography–mass spectrometry (LC–MS) and quantitative real-time PCR (qRT-PCR), respectively. The current results showed that the contents of major isoflavones components in resistant genotype C103 were higher than the susceptive genotype ND12 before FM treatment. Whereas after FM treatment, the dynamic changing patterns of isoflavones contents and some major genes expression were opposite between these two genotypes, and the biosynthesis of isoflavones was more rapid in resistant genotype compared to susceptible one. Noticeably, the biosynthesis of isoflavones aglycones which exhibit better bioactivities was remarkably promoted after FM treatment in resistant genotype C103, further revealing the important role of isoflavones in the resistance against FM stress. In sum, this research investigated the role of isoflavones against FM stress, the results demonstrated higher inherent contents and more rapid biosynthesis of isoflavones after FM treatment could establish stronger resistant foundation in soybean seeds against the FM stress. These results would provide new insights into the mechanism research of soybean against FM stress, but how the stress systematically regulates isoflavones and other resistant network still needs further research.
Słowa kluczowe
Wydawca
-
Rocznik
Tom
41
Numer
05
Opis fizyczny
Article 57 [9p.], fig.,ref.
Twórcy
autor
  • Key Laboratory of Crop Ecophysiology and Farming System in Southwest, Ministry of Agriculture, Sichuan Agricultural University, Chengdu 611130, China
autor
  • Key Laboratory of Crop Ecophysiology and Farming System in Southwest, Ministry of Agriculture, Sichuan Agricultural University, Chengdu 611130, China
  • Institute of Ecological Agriculture, Sichuan Agricultural University, Chengdu 611130, China
autor
  • Key Laboratory of Crop Ecophysiology and Farming System in Southwest, Ministry of Agriculture, Sichuan Agricultural University, Chengdu 611130, China
  • Institute of Ecological Agriculture, Sichuan Agricultural University, Chengdu 611130, China
autor
  • Key Laboratory of Crop Ecophysiology and Farming System in Southwest, Ministry of Agriculture, Sichuan Agricultural University, Chengdu 611130, China
autor
  • Key Laboratory of Crop Ecophysiology and Farming System in Southwest, Ministry of Agriculture, Sichuan Agricultural University, Chengdu 611130, China
  • Institute of Ecological Agriculture, Sichuan Agricultural University, Chengdu 611130, China
autor
  • College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
autor
  • Key Laboratory of Crop Ecophysiology and Farming System in Southwest, Ministry of Agriculture, Sichuan Agricultural University, Chengdu 611130, China
autor
  • Key Laboratory of Crop Ecophysiology and Farming System in Southwest, Ministry of Agriculture, Sichuan Agricultural University, Chengdu 611130, China
  • Institute of Ecological Agriculture, Sichuan Agricultural University, Chengdu 611130, China
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.agro-d1708ccf-37dc-409c-8a45-a97c207958b6
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