Effects of High Temperature on Photosynthesis, Membrane Lipid Peroxidation and Osmotic Adjustment in Four Rhododendron Species - 九大コレクション

＜紀要論文＞
Effects of High Temperature on Photosynthesis, Membrane Lipid Peroxidation and Osmotic Adjustment in Four Rhododendron Species

作成者	作成者名 GENG, Xing–Min 所属機関所属機関名 Department of Landscape Plant, Nanjing Forestry University 所属機関所属機関名 Laboratory of Horticultural Science, Department of Bioresource Sciences, Faculty of Agriculture, Kyushu University
	作成者名 YANG, Qiu–Yu 所属機関所属機関名 Department of Landscape Plant, Nanjing Forestry University 所属機関所属機関名 Laboratory of Horticultural Science, Department of Bioresource Sciences, Faculty of Agriculture, Kyushu University
	作成者名 YUE, Yuan 所属機関所属機関名 Department of Landscape Plant, Nanjing Forestry University 所属機関所属機関名 Laboratory of Horticultural Science, Department of Bioresource Sciences, Faculty of Agriculture, Kyushu University
	著者識別子 K001614 作成者名 OZAKI, Yukio 尾崎, 行生オザキ, ユキオ所属機関所属機関名 Laboratory of Horticultural Science, Department of Bioresource Sciences, Faculty of Agriculture, Kyushu University 九州大学大学院農学研究院資源生物科学部門
本文言語	英語
出版者	Faculty of Agriculture, Kyushu University
出版者	九州大学大学院農学研究院
発行日	2019-02-28
収録物名	九州大学大学院農学研究院紀要
巻	64
号	1
開始ページ	33
終了ページ	38
出版タイプ	Version of Record
アクセス権	open access
Crossref DOI	https://doi.org/10.5109/2231631

ファイル	ファイルタイプ	サイズ	閲覧回数	説明
p033	pdf	1.25 MB	747

PISSN	0023-6152
NCID	AA00697606
レコードID	2231631
主題	compatible osmolytes
	heat stress
	photoinhibition
	Rhododendron
	superoxide dismutase
注記	In order to make clear the response mechanism of Rhododendron species to high temperature, two– year–old seedlings of R. fortunei, R. ovatum, R. simsii and R. mariesii were heat–stressed at 42°C/30°C (day/night) for 24 h. Four Rhododendron species under heat stress showed significant differences in heat injury indices (HII), and R. fortunei was more sensitive to high temperature than the other three species. The lipid peroxidation of R. fortunei seedling was most serious indicated by malondialdehyde (MDA), which could be related to the significant decrease of superoxide dismutase (SOD) activity in R. fortunei seedlings. In the other three heat–resistant species, the content of soluble proteins and SOD activity increased under heat stress. The accumulation of proline and soluble sugars was found in greater heat– resistant species, which could alleviate osmotic stress of rhododendron seedlings under high temperature. Net photosynthesis (PN) rates for four species were inhibited at different levels due to heat stress, but reduction proportion of PN for R. fortunei was highest due to mainly nonstomatal factors.
登録日	2019.04.15
更新日	2022.11.11