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Research on Physio-biochemistry Indexes of Heat Resistant of Prunus mume in Summer(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2012年02期
Page:
57-61
Research Field:
Publishing date:

Info

Title:
Research on Physio-biochemistry Indexes of Heat Resistant of Prunus mume in Summer
Author(s):
LIU De-liang;  LAI Wan-nian
School of Life Sciences,Jiaying University,Meizhou,Guangdong 514015
Keywords:
high temperature in summer;  Prunus mume;  thermal resistance ability;  physio-biochemistry index
PACS:
S 68517
DOI:
-
Abstract:
Enzyme activity,membrane thermostability and thermal stability albumen were studied by collecting leafes of 5 varieties of Prunus mume in May, July and September,2010.The results showed that Prunus mume ‘Taohong Gongfen’ and Prunus mume ‘Wanxing Gongfen’ had stronger thermal resistance ability during the high temperature in summer, secondly was Prunus mume ‘Meiren Mei’,while Prunus mume ‘Jiangnan Zhusha’and Prunus mume ‘Taige Zhusha’was relatively weaker. Chlorophyll content of different varieties of Prunus mume were inordinately degradated during the high temperature in summer,of which amplitude of chlorophyll content of Prunus mume ‘Taohong Gongfen’ were relatively small, and that of Prunus mume ‘Meiren Mei’were relatively large; Malonyl dialdehyde(MDA) activity of 5 varieties of Prunus mume dropped but Prunus mume ‘Meiren Mei’ rised at first and lowered later,superoxide dismutase (SOD) activity lowered at first and rised later, and peroxidase (POD) activities decreased on the whole; Conductivity of membrane thermostability(thermal stability) increased and then decreased,and thermal stability albumen content basically decreased.

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Last Update: 2014-08-24