|Table of Contents|

Effect of Downy Mildew Infection on PSΠ Photochemical Activity in Leaves of Vitis amurensis Rupr.of ‘Zuoshanyi’ and ‘Shuangfeng’(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2014年17期
Page:
16-19
Research Field:
Publishing date:

Info

Title:
Effect of Downy Mildew Infection on PSΠ Photochemical Activity in Leaves of Vitis amurensis Rupr.of ‘Zuoshanyi’ and ‘Shuangfeng’
Author(s):
WANG Zhen-xing; XU Pei-lei; FAN Shu-tian; QIN Hong-yan; LI Xiao-yan; LIU Ying-xue; ZHAO Ying; YANG Yi-ming; AI Jun
Institute of Special Wild Economic Animal and Plant Science,Chinese Academy of Agricultural Sciences,Jilin,Jilin 132109
Keywords:
downy mildew;  Vitis amurensis Rupr.(amur grape) ;  photosystem Ⅱ(PSⅡ);  oxygen-evolving complex (OEC)
PACS:
s663.1
DOI:
-
Abstract:
Taking Vitis amurensis Rupr.of ‘Zuoshanyi’ and ‘Shuangfeng’ annual cutting shoots as materials,activities of photosystem(PS)Ⅱ in leaves under downy mildew infection were studied by simultaneously analyzing chlorophyll a fluorescence transient for lucubrating the physiological mechanism of downy mildew infection effects on amur grape.The results showed that the relative variable fluorescence Vj?and Vi?increased gradually as downy mildew developed,the acceptor side of PSⅡ was damaged.There were cultivars differences in the response of PSⅡ activity to downy mildew,the photosynthetic apparatus of ‘Zuoshanyi’ cultivar was more resistant to downy mildew than that of ‘Shuangfeng’.

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Last Update: 2014-09-25