Version 1
: Received: 10 November 2021 / Approved: 11 November 2021 / Online: 11 November 2021 (13:01:28 CET)
How to cite:
Lin, X.; Liao, H.; Du, J.; Peng, J.; Zhou, K. Effect of Enhanced UV-B Radiation on Fruit Maturity and Quality, and Leaf Photosynthesis in ' Guifei ' Mango. Preprints2021, 2021110211. https://doi.org/10.20944/preprints202111.0211.v1
Lin, X.; Liao, H.; Du, J.; Peng, J.; Zhou, K. Effect of Enhanced UV-B Radiation on Fruit Maturity and Quality, and Leaf Photosynthesis in ' Guifei ' Mango. Preprints 2021, 2021110211. https://doi.org/10.20944/preprints202111.0211.v1
Lin, X.; Liao, H.; Du, J.; Peng, J.; Zhou, K. Effect of Enhanced UV-B Radiation on Fruit Maturity and Quality, and Leaf Photosynthesis in ' Guifei ' Mango. Preprints2021, 2021110211. https://doi.org/10.20944/preprints202111.0211.v1
APA Style
Lin, X., Liao, H., Du, J., Peng, J., & Zhou, K. (2021). Effect of Enhanced UV-B Radiation on Fruit Maturity and Quality, and Leaf Photosynthesis in ' Guifei ' Mango. Preprints. https://doi.org/10.20944/preprints202111.0211.v1
Chicago/Turabian Style
Lin, X., Junjie Peng and Kaibing Zhou. 2021 "Effect of Enhanced UV-B Radiation on Fruit Maturity and Quality, and Leaf Photosynthesis in ' Guifei ' Mango" Preprints. https://doi.org/10.20944/preprints202111.0211.v1
Abstract
(1) Background: Investigating the characteristics of photosynthetic physiological changes of leaves in Mangifera indica L. cv. 'GuIfei' under enhanced UV-B radiation, natural light exposed trees were regarded as control, and 96 kJ·m-2·d-1enhanced UV-B radiation was artificially simulated in the field; (2) Methods: The changes of fruit maturity and fruit quality, leaf net photosynthetic rate (Pn), photosynthetic pigments contents, photochemical reaction, activities of photosynthetic enzymes and their genes expressions were determined; (3) Results: Compared with CK, the percentage of mature fruits of the treatment was significantly increased, and fruit quality was better. The net photosynthetic rate (Pn), the contents of photosynthetic pigment, Hill reaction activity and photochemical quenching coefficient (qP) of the treatment leaves showed a significantly higher trend than CK. The activities of Rubisco and RCA, and the expression of Rubisco genes rbcL and rbcS were significantly increased; (4) Conclusions: 96 kJ·m-2·d-1 enhanced UV-B radiation treatment improved Rubisco activity through increasing the expression of Rubisco genes rbcL and rbcS, thereby enhancing the CO2-fixing capacity and dark reaction capacity of leaves. Based on this, it raised the net photosynthetic rate of leaves, which promoted the early maturity of 'Guifei' mango by the fast accumulating photosynthetic products.
Keywords
UV-B radiation; Mango; Fruit maturity; Fruit quality,Photosynthesis; Photosynthetic enzymes; Gene expression
Subject
Biology and Life Sciences, Horticulture
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
