|Table of Contents|

Effects of Exogenous EBR on Photosynthetic Physiology of Cowpea Under Waterlogging,Drought and Salt Stress

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2022年23
Page:
9-20
Research Field:
Publishing date:

Info

Title:
Effects of Exogenous EBR on Photosynthetic Physiology of Cowpea Under Waterlogging,Drought and Salt Stress
Author(s):
GONG Zuyun; HU Zhihui; WANG Yanjie
(College of Life Sciences,Jianghan University/Hubei Bean (Vegetable) Plant Engineering and Technology Research Center,Wuhan,Hubei 430056)
Keywords:
brassinosteroids; waterlogging stress; drought stress; salt stress; cowpea; physiology and biochemistry
PACS:
-
DOI:
10.11937/bfyy.20221484
Abstract:
Taking ‘Ejiangdou 7’and ‘Jiangda Zijiang 1 Hao’two long cowpea varieties as test materials,the field cowpea plants were subjected to single salt stress,salt and drought dual stress,and salt and waterlogging dual stress respectively,the method of spraying brassinolide (EBR) was used,photosynthetic indicators (net photosynthetic rate,intercellular CO2 concentration,stomatal conductance and transpiration rate),antioxidant enzymes indicators and malondialdehyde content indicators were measured and detected,the effects of brassinolide on the physiology and biochemistry of cowpea seedlings under external stress were studied,in order to provide reference for the application of exogenous brassinolide to alleviate cowpea strress.The results showed that under the conditions of waterlogging,drought and salt stress,the stomatal conductance (Gs),transpiration rate (Tr) and intercellular CO2 concentration (Ci) of cowpea leaves decreased,resulting in the decrease of stomatal opening and closing degree,and the reduction of photosynthesis.Insufficient raw material CO2 reduced the net light rate (Pn),exogenous EBR improved the photosynthesis of cowpea leaves under waterlogging,drought and salt stress,and exogenous EBR treatment increased the net photosynthetic rate of cowpea,reduced the concentration of intercellular CO2,stomatal conductivity and transpiration rate.Under waterlogging,drought and salt stress conditions,the activities of SOD,POD,CAT,APX and MDA contet in cowpea all increased.

References:

[1]SMYKAL P,COYNE C J,AMBROSE M J,et al.Legume crops phylogeny and genetic diversity for science and breeding[J].Critical Reviews in Plant Sciences,2015,34(13):43-104.[2]冯宇,周颜,杨虎彪,等.6种豇豆属植物耐盐性评价及光合特性研究[J].热带作物学报,2018,39(12):2410-2420.[3]井大炜,张红,李士平,等.干旱胁迫对豇豆品质与抗氧化酶活性的影响[J].长江蔬菜,2017(4):71-74.[4]OYETUNJI O J,FRANCIS I.Effect of salt stress on growth,proline,glycinebetaine and photosynthetic pigment concentrations on cowpea plant[J].Nature and Science,2014,12(12):156-161.[5]KONDO T,KARIM M A,UEDA K,et al.Effect of NaCl treatment on growth and some physiological characteristics of a salt-tolerant soybean genotype AGS 313 bred in Bangladesh[J].Tropical Agriculture and Development,2012,56(4):139-142.[6]陆红飞,郭相平,甄博,等.旱涝交替胁迫条件下粳稻叶片光合特性[J].农业工程学报,2016,32(8):105-112.[7]CLOUSE S D.Brassinosteroid signal transduction:From receptor kinase activation to transcriptional networks regulating plant development[J].Plant Cell,2011,23(4):1219-1230.[8]张庆怡,李悦,董佳伟,等.外源ABA对低温胁迫下牛皮杜鹃气孔性状及光合性能的影响[J].北方园艺,2022(1):72-79.[9]向娟,潘绍坤,鲁荣海,等.脱落酸预处理对低温胁迫下豇豆幼苗生理生态的影响[J].北方园艺,2019(7):49-53.[10]尹冬梅,齐帅,张冬菊,等.脱落酸对涝渍胁迫下番茄光合生理特性的影响[J].北方园艺,2021(24):1-7.[11]董亚茹,张艳波,赵东晓,等.外源24-表油菜素内酯对NaCl胁迫下桑树幼苗的缓解效应[J].核农学报,2021,35(6):1466-1475.[12]吴杨,高慧纯,张必弦,等.24-表油菜素内酯对盐碱胁迫下大豆生育、生理及细胞超微结构的影响[J].中国农业科学,2017,50(5):811-821.[13]YANG P.Effects of brassinosteroids on photosynthetic performance and nitrogen metabolism in pepper seedlings under chilling stress[J].Agronomy,2019,9(12):839.[14]HU W H.24-epibrassinolide alleviate drought-induced photoinhibition in Capsicum annuum via up-regulation of AOX pathway[J].Scientia Horticulturae,2019,243:484-489.[15]许大全.光合作用效率[M].上海:上海科学技术出版社,2002.[16]杨龙树,李佳佳,贺亭亭,等.大豆质核互作雄性不育系NJCMS1A与其保持系NJCMS1B的生理生化特性比较分析[J].大豆科学,2017,36(3):391-398.[17]袁凤杰,竹龙鸣,郁晓敏,等.大豆低植酸突变体籽粒的抗氧化性分析[J].核农学报,2020,34(12):2629-2637.[18]徐笑笑,朱建强,吴启侠.小麦孕穗期受涝后对喷施叶面肥和2,4-表芸薹素内酯的响应[J].江苏农业科学,2017,45(5):46-50.[19]曹晶,姜卫兵,翁忙玲,等.夏秋季旱涝胁迫对红叶石楠光合特性的影响[J].园艺学报,2007,34(1):163-172.[20]杨妮,万绮雯,李逸民,等.外源亚精胺对盐胁迫下茶树光合特性及关键酶基因表达的影响[J].园艺学报,2022,49(2):378-394.[21]LIMA J V,LOBATO A K S.Brassinosteroids improve photosystem Ⅱ efficiency,gas exchange,antioxidant enzymes and growth of cowpea plants exposed to water deficit[J].Physiology and Molecular Biology of Plants,2017,23(1):59-72.[22]SANTOS L R,BATISTA B L,LOBATO A K S.Brassinosteroids mitigate cadmium toxicity in cowpea plants[J].Photosynthetica,2018,56(2):591-605.

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Last Update: 2023-01-19