Wang Xiaolin, Wang Yong, Ling Aifeng, Guo Zhen, Asim Muhammad, Song Fupeng, Wang Qing, Sun Yanguo, Khan Rayyan, Yan Huifeng, Shi Yi
Tobacco Research Institute, of Chinese Academy of Agricultural Sciences, Qingdao, China.
Liangshan Branch of Sichuan Tobacco Company, Xichang, Qingdao, China.
Front Plant Sci. 2020 Nov 23;11:573881. doi: 10.3389/fpls.2020.573881. eCollection 2020.
Light dominates the earth's climate and ecosystems via photosynthesis, and fine changes of that might cause extensive material and energy alternation. Dim light (typically less than 5 μmol photons m s) occurs widely in terrestrial ecosystems, while the frequency, duration, and extent of that are increasing because of climate change and urbanization. Dim light is important for the microorganism in the photosynthetic process, but omitted or unconsidered in the vascular plant, because the photosynthesis in the high-light adapted vascular leaves was almost impossible. In this review, we propose limitations of photosynthesis in vascular plant leaves, then elucidate the possibility and evidence of photosynthesis in terms of energy demand, stomatal opening, photosynthetic induction, and photosynthesis-related physiological processes in dim light. This article highlights the potential and noteworthy influence of dim light on photosynthesis in vascular plant leaves, and the research gap of dim light in model application and carbon accounting.
光照通过光合作用主导着地球的气候和生态系统，其细微变化可能会导致广泛的物质和能量交替。弱光（通常低于5微摩尔光子·米⁻²·秒⁻¹）在陆地生态系统中广泛存在，并且由于气候变化和城市化，其发生的频率、持续时间和范围正在增加。弱光对光合过程中的微生物很重要，但在维管植物中却被忽略或未被考虑，因为适应高光的维管植物叶片几乎不可能进行光合作用。在这篇综述中，我们提出了维管植物叶片光合作用的局限性，然后从能量需求、气孔开放、光合诱导以及弱光下与光合作用相关的生理过程等方面阐明了光合作用的可能性和证据。本文强调了弱光对维管植物叶片光合作用的潜在且值得关注的影响，以及弱光在模型应用和碳核算方面的研究空白。
