|Table of Contents|

Effect of NaCl and PEG Iso-osmotic Stress on Photosystem Ⅱ in Mulbery Leaves

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2020年07
Page:
92-100
Research Field:
Publishing date:

Info

Title:
Effect of NaCl and PEG Iso-osmotic Stress on Photosystem Ⅱ in Mulbery Leaves
Author(s):
CHEN QuanyinXU ZongyiWANG YueSUN Guangyu
(College of Life Science,Northeast Forestry University,Harbin,Heilongjiang 150040)
Keywords:
Morus albaNaCl stressPEG stressD1 protein turnoverxanthophylls cyclePSⅡ
PACS:
-
DOI:
10.11937/bfyy.20192539
Abstract:
Taking mulberry (Morus alba L.) as the experimental material,the effect of mulberry leaves on photosystem Ⅱ (PSⅡ) photoinhibition under salt stress and isotonic PEG stress was investigated by utilizing inhibitor.The results showed that compared with CK,mulberry leaves maintained higher PSⅡ reaction center activity under 150 mmol·L-1 NaCl and isotonic 17.1% PEG stress,and had perfect light damage protection mechanism.Under the simulation of salt and isotonic drought stress,the damage of mulberry leaf which happened in PSⅡ reaction centers by utilizing inhibitor.The photosynthetic sites of mulberry leaves were different using two kinds of stress conditions after under inhibitors.Salt stress mainly protected PSⅡ reaction center activity through lutein cycle pathway and normal electron transfer between QA and QB,while D1 protein turnover played a greater role under PEG stress.

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Last Update: 2020-07-03