梨萼片脱落过程中木质素生物合成与活性氧代谢的关联分析-《江苏农业科学》

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Title:: Association analysis of lignin biosynthesis and reactive oxygen species metabolism during sepal abscission in pear

作者:: 潘琦¹; 王浩²; 齐开杰¹; 谢智华¹; 崔艳波³; 包建平²; 张绍铃¹; 陶书田¹; 1.南京农业大学园艺学院，江苏南京 210095； 2.塔里木大学植物科学学院，新疆阿拉尔 843300；3.南京宁翠生物种业有限公司，江苏南京 210095

Author(s):: Pan Qi; et al

关键词:: 萼片脱落; 活性氧代谢; 木质素合成; 关联分析

Keywords:: -

分类号:: S661.201

DOI:: -

文献标志码:: A

摘要:: 利用DPI、H₂O₂、DPI+H₂O₂对梨幼果萼筒部位进行处理，随后对离区细胞进行观察，此外对样品进行液氮速冻，通过测定萼片离区木质素和活性氧代谢相关指标，研究萼片离区内的木质素生物合成过程与活性氧代谢间是否存在协同作用。结果表明，离层对DPI的抑制效果始终敏感，DPI可以通过降低过氧化氢含量来减少木质素含量，外源过氧化氢在处理的早期没有显著作用，而在后期可以促进离层内源过氧化氢形成，从而减缓DPI的抑制效果。皮尔森相关系数表明，萼筒离层中活性氧代谢相关指标与木质素生物合成指标呈正比例关系，特别是过氧化氢在离层中的累积可以促进细胞壁增厚。

Abstract:: -

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