Revealing the significance of chlorophyll b in the moss Physcomitrium patens by knocking out two functional chlorophyllide a oxygenase
文献类型： 外文期刊
作者： Zhang, Lin 1 ; Yang, Chunhong 1 ; Liu, Cheng 1 ;
作者机构： 1.Chinese Acad Sci, Inst Bot, Photosynth Res Ctr, Key Lab Photobiol, Beijing 100093, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Beijing Acad Agr & Forestry Sci, Inst Biotechnol, Beijing, Peoples R China
关键词： Physcomitrium patens; Chlorophyll b; Chlorophyllide a oxygenase; Light harvesting complexes (LHC)
期刊名称：PHOTOSYNTHESIS RESEARCH （ 影响因子：3.7； 五年影响因子：3.6 ）
ISSN： 0166-8595
年卷期： 2023 年
页码：
收录情况： SCI
摘要： The chlorophyllide a oxygenase (CAO) plays a crucial role in the biosynthesis of chlorophyll b (Chl b). In the moss Physcomitrium patens (P. patens), two distinct gene copies, PpCAO1 and PpCAO2, are present. In this study, we investigate the differential expression of these CAOs following light exposure after a period of darkness (24 h) and demonstrate that the accumulation of Chl b is only abolished when both genes are knocked out. In the ppcao1cao2 mutant, most of the antenna proteins associated with both photosystems (PS) I and II are absent. Despite of the existence of LHCSR proteins and zeaxanthin, the mutant exhibits minimal non-photochemical quenching (NPQ) capacity. Nevertheless, the ppcao1cao2 mutant retains a certain level of pseudo-cyclic electron transport to provide photoprotection for PSI. These findings shed light on the dual dependency of Chl b synthesis on two CAOs and highlight the distinct effects of Chl b deprival on PSI and PSII core complexes in P. patens, a model species for bryophytes.
- 相关文献
作者其他论文 更多>>
-
Peduncle collision-free grasping based on deep reinforcement learning for tomato harvesting robot
作者：Li, Yajun;Feng, Qingchun;Zhang, Yifan;Peng, Chuanlang;Ma, Yuhang;Liu, Cheng;Ru, Mengfei;Sun, Jiahui;Zhao, Chunjiang;Li, Yajun;Feng, Qingchun;Zhao, Chunjiang;Feng, Qingchun
关键词：Collision-free; Deep reinforcement learning; Opimal operating posture; Tomato-harvesting robot
-
YOLACTFusion: An instance segmentation method for RGB-NIR multimodal image fusion based on an attention mechanism
作者：Liu, Cheng;Feng, Qingchun;Sun, Yuhuan;Li, Yajun;Ru, Mengfei;Liu, Cheng;Xu, Lijia;Feng, Qingchun;Sun, Yuhuan;Li, Yajun;Ru, Mengfei
关键词：Multimodal fusion; Attention mechanism; YOLACT; Tomato main-stem; Multimodal loss function
-
Browning mechanism in stems of fresh-cut lettuce
作者：Zhang, Lin;Wang, Zhiqiang;Zeng, Shixian;Yuan, Shuzhi;Yue, Xiaozhen;Tian, Tian;Zhu, Xiaoqian;Zheng, Shufang;Zuo, Jinhua;Wang, Qing;Zhang, Lin;Zhu, Xiaoqian;Xu, Xiangbin;Wang, Zhiqiang
关键词：Cellular fluids and latex; Browning; Metabolomics; Proteomics; Lettuce stem
-
MTA-YOLACT: Multitask-aware network on fruit bunch identification for cherry tomato robotic harvesting
作者：Li, Yajun;Feng, Qingchun;Liu, Cheng;Xiong, Zicong;Sun, Yuhuan;Xie, Feng;Li, Tao;Zhao, Chunjiang;Li, Yajun;Zhao, Chunjiang;Feng, Qingchun;Liu, Cheng;Xiong, Zicong;Sun, Yuhuan;Xie, Feng;Li, Tao
关键词：Multitask -aware network; Tomato harvesting robot; YOLACT; Decision tree
-
Brassinolide alleviated chilling injury of banana fruit by regulating unsaturated fatty acids and phenolic compounds
作者：Zhang, Lin;Cao, Xiang;Wang, Zhiqiang;Zhang, Zhengke;Xu, Xiangbin;Li, Jiangkuo;Wang, Qing;Xu, Xiangbin
关键词：Brassinolide; Chilling injury; Unsaturated fatty acids; Phenolic compounds; Banana fruit
-
Motion Planning of the Citrus-Picking Manipulator Based on the TO-RRT Algorithm
作者：Liu, Cheng;Tang, Zuoliang;Geng, Jinping;Xu, Lijia;Feng, Qingchun;Wang, Xiangyu
关键词：picking manipulator; motion planning; TO-RRT; step-size dichotomy; regression superposition
-
Characterization of an Endophytic Antagonistic Bacterial Strain Bacillus halotolerans LBG-1-13 with Multiple Plant Growth-Promoting Traits, Stress Tolerance, and Its Effects on Lily Growth
作者：Gao, Jun-lian;Sun, Yu-chen;Xue, Jing;Du, Yunpeng;Chen, Xuqing;Zhang, Xiuhai;Khan, Mohammad Sayyar;Yang, Chunhong;Chebotar, Vladimir K.;Tikunov, Vladimir S.;Rubanov, Ivan N.
关键词：
