光防护
光合作用
叶黄素
紫黄质
生产力
花药黄素
农学
光抑制
光系统II
环境科学
生物量(生态学)
适应(眼睛)
玉米黄质
生物
植物
叶黄素
类胡萝卜素
神经科学
经济
宏观经济学
作者
Johannes Kromdijk,Katarzyna Głowacka,Lauriebeth Leonelli,Stéphane T. Gabilly,Masakazu Iwai,Krishna Niyogi,Stephen P. Long
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:2016-11-18
卷期号:354 (6314): 857-861
被引量:959
标识
DOI:10.1126/science.aai8878
摘要
Faster light adaptation improves productivity Crop plants protect themselves from excess sunlight by dissipating some light energy as heat, readjusting their systems when shadier conditions prevail. But the photosynthetic systems do not adapt to fluctuating light conditions as rapidly as a cloud passes overhead, resulting in suboptimal photosynthetic efficiency. Kromdijk et al. sped up the adaptation process by accelerating interconversion of violaxanthin and zeaxanthin in the xanthophyll cycle and by increasing amounts of a photosystem II subunit. Tobacco plants tested with this system showed about 15% greater plant biomass production in natural field conditions. Science , this issue p. 857
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