Transcriptomic Analysis of Late-Ripening Sweet Orange Fruits ( Citrus sinensis ) after Foliar Application of Glomalin-Related Soil Proteins

Hui-Hui Wu, Anoop Kumar Srivastava, Yan Li, Ying-Ning Zou, Abeer Hashem, Elsayed Fathi Abd_Allah and Qiang-Sheng Wu
Additional contact information
Hui-Hui Wu: College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China
Anoop Kumar Srivastava: ICAR-Central Citrus Research Institute, Nagpur 440033, India
Yan Li: Xingshan County Special Products Bureau, Xingshan 443711, China
Ying-Ning Zou: College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China
Abeer Hashem: Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia
Elsayed Fathi Abd_Allah: Plant Production Department, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia
Qiang-Sheng Wu: College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China

Agriculture, 2021, vol. 11, issue 11, 1-12

Abstract: Glomalin, one of the glycoproteins generated in the spores and hyphae of arbuscular mycorrhizal (AM) fungi, has multiple functions in plants and soil, while the role of foliar spray of easily extractable glomalin-related soil proteins (EE-GRSP) in citrus fruits is not well defined. Our study aimed to use referenced transcriptome sequencing to uncover the mechanism and the role of exogenous EE-GRSP in two late-ripening varieties of sweet orange ( Citrus sinensis ) fruits including Navel Lane Late (LW) and Rohde Red Valencia (XC). The 1804 and 1861 differentially expressed genes were identified in fruits of LW and XC, respectively, following foliar spray of EE-GRSP. Photosynthesis ranked second in the Kyoto Encyclopedia of Genes and Genomes (KEGG) metabolism in the LW variety, and carbon fixation in photosynthetic organizations ranked first in KEGG metabolism in the XC variety. The response to foliar spray of EE-GRSP affected the fruit starch and sucrose metabolism of KEGG, with 15 (10 up-regulated and 5 down-regulated) and 13 (2 up-regulated and 11 down-regulated) differentially expressed genes identified in the LW and XC variety, respectively. Cs5g19060 (sucrose phosphate synthase 4) was activated and reduced by EE-GRSP on XC and LW, respectively. Cs1g18220 ( β-fructofuranosidase ) and Cs2g12180 (glycosyl hydrolase family 9) genes were up-regulated and down-regulated in LW and XC, respectively. These results established the involvement of molecular signaling in response to foliar spray of EE-GRSP activating fruit sugar metabolism is dependent on citrus varieties.

Keywords: citrus; fruit quality; gene expression; glomalin; hexose; mycorrhiza (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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