|Table of Contents|

Effects of Ethephon on Senescence and Photo-contracted Products of Walnut Leaves

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2022年08
Page:
46-51
Research Field:
Publishing date:

Info

Title:
Effects of Ethephon on Senescence and Photo-contracted Products of Walnut Leaves
Author(s):
DING Xinxin1; 2; LI Qiuyu1; YANG Xiao1; ZHANG Xiaojun1; LIU Qunlong1
(1.College of Horticultural Science,Shanxi Agricultural University,Taigu,Shanxi 030801；2.Wanrong Fruit Industry Development Center,Wanrong,Shanxi 044200)
Keywords:
walnut; ethephon; senescence; photo-assimilates
PACS:
-
DOI:
10.11937/bfyy.20213449
Abstract:
Taking grafted four-year-old walnut ‘Nonghe No.1’ as test material,the effects of ethephon on chlorophyll,osmotic regulation substances and photosynthetic products were studied by spraying ethephon on the leaves of walnut in autumn,in order to provide reference for effective prevention of cold frost in late autumn and early winter.The results showed that at the later stage of sampling,chlorophyll content of spraying 0.25 mg?L-1 ethephon increased by 7.77%,but spraying 0.50 mg?L-1 and 1.00 mg?L-1ethephon significantly decreased by 9.56% and 35.84% compared with the control (P<0.01).However,the MDA content of spraying 0.50 mg?L-1 and 1.00 mg?L-1 ethephon was significantly increased by 17.40% and 51.83%,respectively (P<0.01).And the proline content of spraying 0.50 mg?L-1 and 1.00 mg?L-1 was significantly increased by 11.88% and 58.70% (P<0.01).Compared with the control,net photosynthetic rate （Pn） of spraying three treatments decreased by 10.19%,15.05% and 20.02%,respectively.The starch content significantly decreased by 10.43%,26.68% and 24.76% (P<0.01).Soluble sugar content was significantly reduced by 11.18%,15.79% and 20.60% (P<0.01).Therefore,ethephon sprayed at leaf aging stage can not only reduce chlorophyll content,Pn and accumulation of starch content,but also accelerate leaf senescence.It also reduced reducing sugar and soluble sugar contents,ethephon at 0.50 mg?L-1 and 1.00 mg?L-1 could increase MDA content and proline content of leaves,and leaves were defoliated 5 days and 13 days earlier than the control,respectively.

References:

[1]郗荣庭,张毅萍.中国核桃[M].北京:中国林业出版社,1992.[2]刘群龙,王朵,吴国良,等.硒对酥梨叶片衰老及抗氧化酶系统的影响[J].园艺学报,2011,38(11):2059-2066.[3]XIE Q,HU Z,ZHU Z,et al.Overexpression of a novel MADS-box gene SlFYFL delays senescence,fruit ripening and abscission in tomato[J].Scientific Reports,2014(4):1-10．[4]ABELES F B,MORGAN P W,SALTVEIT M E.Ethylene in Plant Biology[M].2nd ed.San Diego:Academic Press,1992.[5]YANG Y,MA R J,ZHANG B B,et al.Different expression analysis in fruit softening and ethylene biosynthetic pathways in peaches of different flesh textures[J].Horticultural Plant Journal,2016,2(2):75-81.[6]IRELAND H S,GUILLEN F,BOWEN J,et al.Mining the apple genome reveals a family of nine ethylene receptor genes[J].Postharvest Biology and Technology,2012,72(4):42-46.[7]LIM S,LEE J G,LEE E J.Comparison of fruit quality and GC-MS-based metabolite profiling of kiwifruit ‘Jecy Green’:Natural and exogenous ethylene-induced ripening[J].Food Chemistry,2017,234:81-92.[8]KARLOVA R,CHAPMAN N,DAVID K,et al.Transcriptional control of fleshy fruit development and ripening[J].Journal of Experimental Botany,2014,65(16):4527-4541.[9]刘新甜,彭剑涛,张琳,等.乙烯利对烟草离体叶圆片衰老相关生理指标的影响[J].贵州大学学报(自然科学版),2017,34(4):12-15.[10]郭亚宁.NAC转录因子在陆地棉叶片衰老中的作用[D].杨凌:西北农林科技大学,2017.[11]黄新敏,林启灵,冼锡金,等.纳米银对瓶插月季切花乙烯作用的拮抗效应[J].园艺学报,2012,39(4):735-742.[12]罗江会,马婧,刘道凤,等.乙烯对蜡梅切花开放衰老及乙烯受体基因表达的影响[J].植物生理学报,2015,51(2):253-258.[13]赵世杰,许长城,邹琦,等.植物组织中丙二醛测定方法的改进[J].植物生理学通报,1994(3):207-210.[14]王学奎.植物生理生化试验原理与技术[M].北京:高等教育出版社,2006.[15]徐爱东，张志良.《植物生理学实验指导》中不足之处和改进意见[J].植物生理学通讯,2007,43(6):1173-1174.[16]高俊凤.植物生理学实验指导[M].北京:高等教育出版社,2006.[17]丁欣欣.不同时期喷施乙烯利对核桃物候期和抗寒性的影响[D].太谷:山西农业大学,2019.[18]ROCA M,JAMES C,PRUZINSKA A,et al.Analysis of the chlorophyll catabolism pathway in leaves of an introgression senescence mutant of Lolium temulentum[J].Phytochemistry,2004,65(9):1231-1238．[19]MARTIN C,THIMNN K V.The role of protein synthesis in the senescence of leaves I.The formation of protease[J].Plant Physiology,1972,49:64-71.[20]DIAZ-MENDOZA M,VELASCO-ARROYO B,SANTAMARIA M E,et al.Plant senescence and proteolysis:Two processes with one destiny[J].Genet Mol Biol,2016,39(3):329-338.[21]卢少云,陈斯平,陈斯曼,等.三种暖季型草坪草在干旱条件下脯氨酸含量和抗氧化酶活性的变化[J].园艺学报,2003(3):303-306.[22]王永章,张大鹏.乙烯对成熟期新红星苹果果实碳水化合物代谢的调控[J].园艺学报,2000(6):391-395.[23]杨力.乙烯对苹果细胞壁组分降解效应及其机理的研究[D].杨凌:西北农林科技大学,2009.[24]葛建军,朱林,张国良,等.乙烯利对花生氮代谢和光合特性的影响[J].花生学报,2008,37(2):22-27.

Memo

Memo:
-
Last Update: 2022-07-08