Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2003-9-16
pubmed:abstractText
Table ADC-225-MK3 CO2 gas analyzer and PAM-2000 portable fluorescence measurement system were used to measure the net photosynthetic rate (Pn), initial fluorescence (Fo), maximal photochemical efficiency of PS II (Fv/Fm) and electron transport rate (ETR) of satsuma mandarin (Citrus unshiu Marc.) and navel orange (C. sinensis Osbeck) leaves. The results showed that exposure of citrus plants to high temperature (38-40 degrees C) led to a lowering of Pn, Fv/Fm, and ETR, whereas Fo increased. After exposure to high temperature for 25 days, compared with normal temperature (25 degrees C), the Pn of satsuma mandarin and navel orange leaves decreased by 55.6% and 39.8%, Fv/Fm decreased by 22.0% and 6.7% and ETR reduced by 55.0% and 41.5%, respectively. On the other hand, Fo increased 113.8% and 14.9%, respectively. With subsequent transfer to the 25 degrees C culture room for 10 days, Pn, Fv/Fm, Fo and ETR recovered significantly. These results demonstrated that the reduction of Pn in Citrus was related to the inactivation of PSII reaction center.
pubmed:language
chi
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1001-9332
pubmed:author
pubmed:issnType
Print
pubmed:volume
14
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
867-70
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
[Effects of high temperature stress on net photosynthetic rate and photosystem II activity in Citrus].
pubmed:affiliation
Department of Horticulture, Zhejiang University, Hangzhou 310029, China. ypguo@zju.edu.cn
pubmed:publicationType
Journal Article, English Abstract, Research Support, Non-U.S. Gov't