|Table of Contents|

Study on Photosynthesis of the Pecan Under the Stress of Black Spot Disease

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2023年07
Page:
34-40
Research Field:
Publishing date:

Info

Title:
Study on Photosynthesis of the Pecan Under the Stress of Black Spot Disease
Author(s):
CHEN Xinlin1; 2; ZHU Cancan2; ZHANG Shijie2; LU Xiaomei3; CHEN Yu2
(1.College of Forestry,Nanjing Forestry University,Nanjing,Jiangsu 210037；2.Institute of Botany,Jiangsu Province and Chinese Academy of Sciences,Nanjing,Jiangsu 210014；3.Changzhou Guomei Agricultural Technology Co.Ltd.，Changzhou,Jiangsu 213245)
Keywords:
pecan; black spot; leaf; photosynthesis; chlorophyll
PACS:
-
DOI:
10.11937/bfyy.20223352
Abstract:
Taking five pecan varieties with different resistance，‘Pawnee’‘Xinxuan 4-1’‘Kanza’‘Mahan’‘Wichita’ as test materials,field test and instrumental measurement methods were used.The effects of black spot disease on the photosynthetic physiological parameters of net photosynthetic rate (Pn),transpiration rate (Tr),intercellular CO2 concentration (Ci) and stomatal conductance (Gs),and the chlorophyll relative content of the disease leaf and healthy leaf were studied in five varieties,in order to provide reference for the control of black spot disease of pecan.The results showed that black spot significantly affected photosynthesis,and the net photosynthetic rate,transpiration rate,stomatal conductance and chlorophyll content were significantly decreased (P<0.05).The intercellular CO2 concentration of all cultivars except ‘Kanza’ were significantly increased (P<0.05),suggested that non-stomatal factors might be one of the main reasons for the decrease of photosynthesis of susceptible pecan.It was also found that the decrease range of net photosynthetic rate,transpiration rate,stomatal conductance and chlorophyll content of the resistant cultivars was lower than that of the sensitive cultivars,indicated that the resistant cultivars could delayed the damage of photosynthesis caused by black spot disease to a certain extent.

References:

[1]张日清,吕芳德.美国山核桃在原产地分布、引种栽培区划及主要栽培品种分类研究概述[J].经济林研究,2002,20(3):53-55.[2]何海洋,彭方仁,李小飞,等.薄壳山核桃果园虫害调查分析[J].江苏林业科技,2015,42(2)：10-14.[3]姚小华,常君,王开良.中国薄壳山核桃[M].北京：北京科学出版社,2014．[4]陈雅琦,莫正海,娄文睿,等.煤污病胁迫下3个薄壳山核桃品种的光合特性[J].江苏农业学报,2021,37(4):968-973.[5]张传清,徐志宏,孙品雷,等.新病害:山核桃果实黑斑病病原菌的鉴定[J].植物保护,2010(4)：160-162.[6]ZHANG Y,MENG K,SHU J,et al.First report of anthracnose on pecan (Carya illinoensis) caused by Colletotrichum nymphaeae in China[J].Plant Disease,2019,6(103):1-2.[7]RAMN,ALVIDREZ-VILLARREAL,FRANCISCO,et al.Isolation and pathogenicity of fungi associated to ambrosia borer (Euplatypus segnis) found injuring pecan (Carya illinoensis) wood[J].Agricultural Sciences,2012,3(3):405-416.[8]陈于,王敏,朱灿灿,等.常州金坛地区不同薄壳山核桃品种黑斑病抗性田间调查[J].江苏林业科技,2018,45(6)：27-29.[9]孟珂.薄壳山核桃黑斑病病原菌鉴定及室内药剂筛选[D].新乡:河南科技学院,2020.[10]刘壮壮，骆敏,彭方仁，等.不同品种薄壳山核桃光合及快速叶绿素荧光诱导动力学特性[J].东北林业大学学报,2017,45(4):36-42.[11]李健,凌骅,杨先裕,等.美国引进的6个薄壳山核桃品种光合生理特性比较[J].安徽农业大学学报,2018,45(2):258-262.[12]蒋时姣.核桃黑斑病抗性评价及抗病机理研究[D].成都:四川农业大学,2019.[13]杨汉波,韩珊,何丹,等.四川盆地核桃黑斑病病原菌的分离,鉴定与核桃抗病性评价[J].热带亚热带植物学报,2020,28(5):487-494.[14]FARQUHAR G D,SHARKEY T D.Stomatal conductance and photosynthesis[J].Annual Review of Plant Physiology,1982,33(4)：317-345.[15]陈斐斐,杜志游,谢礼,等.黄瓜花叶病毒 2b 蛋白对寄主光合速率和叶绿体结构的影响[J].生物化学与生物物理进展,2007,34(3):889-896.[16]丁小涛,金海军,张红梅,等.霜霉病菌侵染对黄瓜叶片光合作用的影响[J].上海农业学报,2010,26(3):5-7.

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Last Update: 2023-04-28