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Identification of Photosynthesis Characteristics and Chlorophyll Metabolism in Leaves of Citrus Cultivar (Harumi) with Varying Degrees of Chlorosis

In autumn and spring, citrus leaves with a Ponkan (Citrus reticulata Blanco cv. Ponkan) genetic background (Harumi, Daya, etc.) are prone to abnormal physiological chlorosis. The effects of different degrees of chlorosis (normal, mild, moderate and severe) on photosynthesis and the chlorophyll metab...

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Autores principales: Xiong, Bo, Li, Ling, Li, Qin, Mao, Huiqiong, Wang, Lixinyi, Bie, Yuhui, Zeng, Xin, Liao, Ling, Wang, Xun, Deng, Honghong, Zhang, Mingfei, Sun, Guochao, Wang, Zhihui
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10179384/
https://www.ncbi.nlm.nih.gov/pubmed/37176103
http://dx.doi.org/10.3390/ijms24098394
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author Xiong, Bo
Li, Ling
Li, Qin
Mao, Huiqiong
Wang, Lixinyi
Bie, Yuhui
Zeng, Xin
Liao, Ling
Wang, Xun
Deng, Honghong
Zhang, Mingfei
Sun, Guochao
Wang, Zhihui
author_facet Xiong, Bo
Li, Ling
Li, Qin
Mao, Huiqiong
Wang, Lixinyi
Bie, Yuhui
Zeng, Xin
Liao, Ling
Wang, Xun
Deng, Honghong
Zhang, Mingfei
Sun, Guochao
Wang, Zhihui
author_sort Xiong, Bo
collection PubMed
description In autumn and spring, citrus leaves with a Ponkan (Citrus reticulata Blanco cv. Ponkan) genetic background (Harumi, Daya, etc.) are prone to abnormal physiological chlorosis. The effects of different degrees of chlorosis (normal, mild, moderate and severe) on photosynthesis and the chlorophyll metabolism of leaves of Citrus cultivar (Harumi) were studied via field experiment. Compared with severe chlorotic leaves, the results showed that chlorosis could break leaf metabolism balance, including reduced chlorophyll content, photosynthetic parameters, antioxidant enzyme activity and enzyme activity related to chlorophyll synthesis, increased catalase and decreased enzyme activity. In addition, the content of chlorophyll synthesis precursors showed an overall downward trend expected for uroporphyrinogen III. Furthermore, the relative expression of genes for chlorophyll synthesis (HEMA1, HEME2, HEMG1 and CHLH) was down-regulated to some extent and chlorophyll degradation (CAO, CLH, PPH, PAO and SGR) showed the opposite trend with increased chlorosis. Changes in degradation were more significant. In general, the chlorosis of Harumi leaves might be related to the blocked transformation of uroporphyrinogen III (Urogen III) to coproporphyrinogen III (Coprogen III), the weakening of antioxidant enzyme system activity, the weakening of chlorophyll synthesis and the enhancement in degradation.
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spelling pubmed-101793842023-05-13 Identification of Photosynthesis Characteristics and Chlorophyll Metabolism in Leaves of Citrus Cultivar (Harumi) with Varying Degrees of Chlorosis Xiong, Bo Li, Ling Li, Qin Mao, Huiqiong Wang, Lixinyi Bie, Yuhui Zeng, Xin Liao, Ling Wang, Xun Deng, Honghong Zhang, Mingfei Sun, Guochao Wang, Zhihui Int J Mol Sci Article In autumn and spring, citrus leaves with a Ponkan (Citrus reticulata Blanco cv. Ponkan) genetic background (Harumi, Daya, etc.) are prone to abnormal physiological chlorosis. The effects of different degrees of chlorosis (normal, mild, moderate and severe) on photosynthesis and the chlorophyll metabolism of leaves of Citrus cultivar (Harumi) were studied via field experiment. Compared with severe chlorotic leaves, the results showed that chlorosis could break leaf metabolism balance, including reduced chlorophyll content, photosynthetic parameters, antioxidant enzyme activity and enzyme activity related to chlorophyll synthesis, increased catalase and decreased enzyme activity. In addition, the content of chlorophyll synthesis precursors showed an overall downward trend expected for uroporphyrinogen III. Furthermore, the relative expression of genes for chlorophyll synthesis (HEMA1, HEME2, HEMG1 and CHLH) was down-regulated to some extent and chlorophyll degradation (CAO, CLH, PPH, PAO and SGR) showed the opposite trend with increased chlorosis. Changes in degradation were more significant. In general, the chlorosis of Harumi leaves might be related to the blocked transformation of uroporphyrinogen III (Urogen III) to coproporphyrinogen III (Coprogen III), the weakening of antioxidant enzyme system activity, the weakening of chlorophyll synthesis and the enhancement in degradation. MDPI 2023-05-07 /pmc/articles/PMC10179384/ /pubmed/37176103 http://dx.doi.org/10.3390/ijms24098394 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Xiong, Bo
Li, Ling
Li, Qin
Mao, Huiqiong
Wang, Lixinyi
Bie, Yuhui
Zeng, Xin
Liao, Ling
Wang, Xun
Deng, Honghong
Zhang, Mingfei
Sun, Guochao
Wang, Zhihui
Identification of Photosynthesis Characteristics and Chlorophyll Metabolism in Leaves of Citrus Cultivar (Harumi) with Varying Degrees of Chlorosis
title Identification of Photosynthesis Characteristics and Chlorophyll Metabolism in Leaves of Citrus Cultivar (Harumi) with Varying Degrees of Chlorosis
title_full Identification of Photosynthesis Characteristics and Chlorophyll Metabolism in Leaves of Citrus Cultivar (Harumi) with Varying Degrees of Chlorosis
title_fullStr Identification of Photosynthesis Characteristics and Chlorophyll Metabolism in Leaves of Citrus Cultivar (Harumi) with Varying Degrees of Chlorosis
title_full_unstemmed Identification of Photosynthesis Characteristics and Chlorophyll Metabolism in Leaves of Citrus Cultivar (Harumi) with Varying Degrees of Chlorosis
title_short Identification of Photosynthesis Characteristics and Chlorophyll Metabolism in Leaves of Citrus Cultivar (Harumi) with Varying Degrees of Chlorosis
title_sort identification of photosynthesis characteristics and chlorophyll metabolism in leaves of citrus cultivar (harumi) with varying degrees of chlorosis
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10179384/
https://www.ncbi.nlm.nih.gov/pubmed/37176103
http://dx.doi.org/10.3390/ijms24098394
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