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当前位置: 首页 > 文章 > 干旱胁迫下抑制光呼吸对‘赤霞珠’葡萄光抑制的影响 园艺学报 2004,31 (4) 433-436
Position: Home > Articles > The Effect of Inhibited Photorespiration on Photoinhibition in ' Cabernet Sauvignon' ( Vitis vinefera L. cv. ) under Drought Stress Acta Horticulturae Sinica 2004,31 (4) 433-436

干旱胁迫下抑制光呼吸对‘赤霞珠’葡萄光抑制的影响

作  者：
管雪强;赵世杰;李德全;束怀瑞
单  位：
山东农业大学园艺学院;山东农业大学生命科学学院
关键词：
葡萄;干旱胁迫;光呼吸;光抑制;光合作用
摘  要：
选用葡萄(Vitis vinifera L.)品种‘赤霞珠’(cabemet Sauvignon)的2年生盆栽苗,进行不同程度的干旱处理20 d及随后连续3 d的光呼吸抑制剂异烟肼(INH)处理后,测定其PSII最大光化学量子产量(Fv/Fm)、实际光化学效率(ΦPSII)及净光合速率(Pn),并计算其总光合电子传递(JT)、羧化电子传递(Jc)、加氧电子传递(Jo)及光呼吸速率(Pr),发现赤霞珠葡萄在干旱胁迫下能够有效调动其光保护机制以避免严重光抑制的发生,而INH抑制光呼吸后,光抑制程度则明显加重,从而证明干旱胁迫下光呼吸对赤霞珠葡萄的光保护机制起重要作用。
译  名：
The Effect of Inhibited Photorespiration on Photoinhibition in ' Cabernet Sauvignon' ( Vitis vinefera L. cv. ) under Drought Stress
作  者：
Guan Xueqiang, Zhao Shijie , Li Dequan, and Shu Huairui (College of Horticulture, Shandong Agricultural University, Tai'an 271018 , China; College of Life Science, Shandong Agricultural University, Tai'an 271018, China; Shandong Vine and Wine-Making Institute, Ji'nan 250100, China)
关键词：
Vitis vinifera L. ; Drought stress; Photorespiration; Photoinhibition; Photosynthesis
摘  要：
Using two-year-old potted 'Cabernet Sauvignon' ( Vitis vinifera L. cv. ) as materials, maximal ( Fv/Fm) and actual (ΦPSII) photochemical efficiency of photosystem Ⅱ ( PSII) , net assimilation rate ( Pn) were measured by combined measurements of gas exchange and chlorophyll fluorescence parameters after a 20 days slight, moderate and severe drought level of soil and succeeding three days INH-spraying treatment. Total electron transport rate ( JT ) , electron transport flows used in carboxylation ( Jc ) and oxygenation ( Jo ) reaction catalyzed by Rubisco, and photorespiration rate (Pr) were calculated. Serious photoinhibition can be avoided by effective photoprotection mechanism in ' Cabernet Sauvignon' , while photoinhibition aggravated when the leaves were sprayed with INH, a inhibitor of photorespiration, which suggests that photorespiraion plays an important role in photoprotection mechanism of ' Cabernet Sauvignon' under drought stress.

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