Ke Zhang , Yixuan Wen , Jiangqu Tang , Yibeibei Zhang , Xinxin Peng , Yiwei Ji , Jin Sun , Xiaoying Liu
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Available light energy and B intervention together decreased the ratio of chlorophyll b (Chl b) to carotenoid (Car), while the opposite effect was observed in the absence of B treatments. Among the various lights, RY and Y significantly upregulated the majority of genes associated with chlorophyll metabolism, while RB predominantly upregulated genes related to the two photosystems (PS). Conversely, B and YB treatments generally suppressed the expression of these genes. Despite these differences in gene expression, the ratios of PSI/PSII to Chl b/Car were consistently maintained around 0.56 in the RB, YB, and RBY treatments. In contrast, this ratio was higher at 0.64 in the B treatment and lower, at less than 0.44, in the R, Y, and RY treatments. These ratios reflect the balance between light supply and utilization in plants under different lights, where plants under RB, YB, and RBY might achieve optimal light environments, while plants under B and under R, Y, and RY experienced high and low light stress, respectively. In conclusion, all combinations of B with R, Y or RY can be used for rapeseed cultivation, and the ratio of Chl b/Car to PSI/PSII might be an important reference index to select optimal light combinations for crop production.</p></div>","PeriodicalId":11758,"journal":{"name":"Environmental and Experimental Botany","volume":null,"pages":null},"PeriodicalIF":4.5000,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The regulation of photosynthesis and growth of rapeseed seedling by the interaction of red and yellow lights with blue light\",\"authors\":\"Ke Zhang , Yixuan Wen , Jiangqu Tang , Yibeibei Zhang , Xinxin Peng , Yiwei Ji , Jin Sun , Xiaoying Liu\",\"doi\":\"10.1016/j.envexpbot.2024.105869\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The interactive regulation among different lights on plant life-activities has not yet been fully understood. 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引用次数: 0
摘要
不同光照对植物生命活动的交互调控尚未完全明了。本研究探讨了红光(R)、黄光(Y)与蓝光(B)对油菜幼苗生长和光合作用的交互作用。结果表明,Y 和 R 以及它们与 RY 的组合不利于植物的光合作用和生长,但四分之一添加的 B(RB、YB 和 RBY)明显逆转了这些负面影响,改善了气孔行为、叶片和根系发育、光合性状以及光合产物的合成和运输。可用光能和硼的干预共同降低了叶绿素 b(Chl b)与类胡萝卜素(Car)的比率,而无硼处理则出现相反的效果。在各种光照中,RY 和 Y 能显著上调大部分与叶绿素代谢相关的基因,而 RB 则主要上调与两个光系统(PS)相关的基因。相反,B 和 YB 处理通常会抑制这些基因的表达。尽管基因表达存在这些差异,但在 RB、YB 和 RBY 处理中,PSI/PSII 与 Chl b/Car 的比率始终保持在 0.56 左右。相比之下,在 B 处理中,该比率较高,为 0.64;而在 R、Y 和 RY 处理中,该比率较低,低于 0.44。这些比率反映了不同光照下植物对光的供应和利用之间的平衡,其中 RB、YB 和 RBY 处理下的植物可能达到最佳光照环境,而 B 处理和 R、Y 和 RY 处理下的植物则分别经历了高光照和低光照胁迫。总之,B 与 R、Y 或 RY 的所有组合均可用于油菜栽培,而 Chl b/Car 与 PSI/PSII 的比值可能是选择作物生产最佳光照组合的重要参考指标。
The regulation of photosynthesis and growth of rapeseed seedling by the interaction of red and yellow lights with blue light
The interactive regulation among different lights on plant life-activities has not yet been fully understood. In the study, we investigated the interaction of red light (R) and yellow light (Y) with blue light (B) on growth and photosynthesis of rapeseed seedlings. The results showed Y and R as well as their combination of RY were not beneficial for plant photosynthesis and growth, but a quarter addition of B (RB, YB and RBY) obviously reversed these negative effects, improving stomatal behavior, leaf and root developments, photosynthetic traits, as well as synthesis and transport of photosynthetic products. Available light energy and B intervention together decreased the ratio of chlorophyll b (Chl b) to carotenoid (Car), while the opposite effect was observed in the absence of B treatments. Among the various lights, RY and Y significantly upregulated the majority of genes associated with chlorophyll metabolism, while RB predominantly upregulated genes related to the two photosystems (PS). Conversely, B and YB treatments generally suppressed the expression of these genes. Despite these differences in gene expression, the ratios of PSI/PSII to Chl b/Car were consistently maintained around 0.56 in the RB, YB, and RBY treatments. In contrast, this ratio was higher at 0.64 in the B treatment and lower, at less than 0.44, in the R, Y, and RY treatments. These ratios reflect the balance between light supply and utilization in plants under different lights, where plants under RB, YB, and RBY might achieve optimal light environments, while plants under B and under R, Y, and RY experienced high and low light stress, respectively. In conclusion, all combinations of B with R, Y or RY can be used for rapeseed cultivation, and the ratio of Chl b/Car to PSI/PSII might be an important reference index to select optimal light combinations for crop production.
期刊介绍:
Environmental and Experimental Botany (EEB) publishes research papers on the physical, chemical, biological, molecular mechanisms and processes involved in the responses of plants to their environment.
In addition to research papers, the journal includes review articles. Submission is in agreement with the Editors-in-Chief.
The Journal also publishes special issues which are built by invited guest editors and are related to the main themes of EEB.
The areas covered by the Journal include:
(1) Responses of plants to heavy metals and pollutants
(2) Plant/water interactions (salinity, drought, flooding)
(3) Responses of plants to radiations ranging from UV-B to infrared
(4) Plant/atmosphere relations (ozone, CO2 , temperature)
(5) Global change impacts on plant ecophysiology
(6) Biotic interactions involving environmental factors.