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| DOI: | 10.1016/j.envexpbot.2021.104607 |
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| Web URL(s): | https://www.sciencedirect.com/science/article/pii/S0098847221002379
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| Publication Type:
| Refereed |
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| Author(s): | Teng, Ke;
Tan, Penghui;
Guan, Jin;
Dong, Di;
Liu, Lingyun;
Guo, Yidi;
Guo, Weier;
Yuesen, Yue;
Fan, Xifeng;
Wu, Juying |
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| Author Affiliation: | Teng, Yuesen, Fan, and Wu: Beijing Academy of Agriculture and Forestry Sciences, Beijing, China; Tan: Beijing Chaoyang Foreign Language School, Beijing, China; Guan, Dong, Liu, and Yidi Guo: College of Grassland Science, Beijing Forestry University, Beijing, China; Weier Guo: Department of Plant Biology, University of California, Davis, CA |
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| Title: | Functional characterization of the chlorophyll b reductase gene NYC1 associated with chlorophyll degradation and photosynthesis in Zoysia japonica |
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| Source: | Environmental and Experimental Botany. Vol. 191, November 2021, p. 104607 [1-11]. |
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| Publishing Information: | Elsevier |
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| # of Pages: | 11 |
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| Keywords: | Author-Supplied Keywords: Chlorophyll breductase; Chlorophyll degradation; Chlorophyll fluorescence; RNA sequencing; Zoysia japonica
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| Abstract/Contents: | "Chlorophyll plays essential roles in photosynthesis and its degradation should be regulated precisely. Chlorophyll b reductase encoded by the gene NYC1 is responsible for catalyzing chlorophyll b degradation and maintaining the stability of photosystems. Although NYC1s have been characterized in many plants, their function in the photosynthetic machinery and the underlying regulatory mechanisms at the whole transcriptome level remain elusive. In this study, the ZjNYC1 gene was cloned from the important warm-season turfgrass Zoysia japonica. Analysis of the subcellular localization revealed that ZjNYC1 was localized in the chloroplasts, and results of the bimolecular fluorescence complementation (BiFC) assay indicated that ZjNYC1 could interact in vivo with the NYC1-like protein, ZjNOL. Overexpression of ZjNYC1 accelerated the degradation of chlorophyll, and promoted senescence with accumulation of ABA and reactive oxygen species (ROS) in Arabidopsis. Expression of ZjNYC1 rescued the stay-green phenotype of the Arabidopsis nyc1 mutant. An integrated analysis of chlorophyll fluorescence test (JIP-test) and RNA-sequencing revealed that ZjNYC1 negatively affected the efficiency of the PSII, PSI, and the intersystem electron transport chain. Furthermore, the Calvin cycle and photorespiration were suppressed, but ABA and ethylene synthesis and signal transduction pathways were activated in the transgenic lines. Collectively, these results demonstrated that ZjNYC1 plays important roles in accelerating chlorophyll degradation and senescence, and caused negative affect on the integrity and functionality of the photosystems." |
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| Language: | English |
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| References: | 50 |
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| Note: | Pictures, color
Figures
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Teng, K., P. Tan, J. Guan, D. Dong, L. Liu, Y. Guo, et al. 2021. Functional characterization of the chlorophyll b reductase gene NYC1 associated with chlorophyll degradation and photosynthesis in Zoysia japonica. Environ. Exp. Bot. 191:p. 104607 [1-11]. |
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| DOI: 10.1016/j.envexpbot.2021.104607 |
| Web URL(s):
https://www.sciencedirect.com/science/article/pii/S0098847221002379
Last checked: 03/01/2022
Requires: JavaScript
Access conditions: Item is within a limited-access website
https://www.sciencedirect.com/science/article/pii/S0098847221002379/pdfft?md5=fa02868e54169075f807cc7b49900842&pid=1-s2.0-S0098847221002379-main.pdf
Last checked: 03/01/2022
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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