Matches in SemOpenAlex for { <https://semopenalex.org/work/W2742906100> ?p ?o ?g. }
- W2742906100 abstract "Abstract Phytochomes and plant hormones have been emerging as important regulators of fleshy fruit biology and quality traits; however, the relevance of phytochrome-hormonal signaling crosstalk in controlling fruit development and metabolism remains elusive. Here, we show that the deficiency in phytochrome chromophore phytochromobilin (PΦB) biosynthesis inhibits sugar accumulation in tomato ( Solanum lycopersicum ) fruits by transcriptionally downregulating sink- and starch biosynthesis-related enzymes, such as cell-wall invertases, sucrose transporters and ADP-glucose pyrophosphorylases. PΦB deficiency was also shown to repress fruit chloroplast biogenesis, which implicates more limited production of photoassimilates via fruit photosynthesis. Genetic and physiological data revealed the involvement of auxins and cytokinins in mediating the negative impact of PΦB deficiency on fruit sink strength and chloroplast formation. PΦB deficiency was shown to transcriptionally repress type-A TOMATO RESPONSE REGULATORs and AUXIN RESPONSE FACTORs both in pericarp and columella, suggesting active phytochrome-hormonal signaling crosstalk in these tissues. Data also revealed that PΦB deficiency influences fruit ripening by delaying the climacteric rise in ethylene production and signaling. Altogether, the data uncover the impact of phytochromobilin deficiency in fine-tuning sugar metabolism, chloroplast formation and the timing of fruit ripening and also reveal a link between auxins, cytokinins and phytochromes in regulating sugar import and accumulation in fruits." @default.
- W2742906100 created "2017-08-17" @default.
- W2742906100 creator A5002976795 @default.
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- W2742906100 creator A5091592913 @default.
- W2742906100 date "2017-08-10" @default.
- W2742906100 modified "2023-10-14" @default.
- W2742906100 title "Phytochromobilin deficiency impairs sugar metabolism through the regulation of cytokinin and auxin signaling in tomato fruits" @default.
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- W2742906100 doi "https://doi.org/10.1038/s41598-017-08448-2" @default.
- W2742906100 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/5552807" @default.
- W2742906100 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/28798491" @default.