| http://purl.uniprot.org/citations/35151443 | http://www.w3.org/1999/02/22-rdf-syntax-ns#type | http://purl.uniprot.org/core/Journal_Citation |
| http://purl.uniprot.org/citations/35151443 | http://www.w3.org/2000/01/rdf-schema#comment | "In ripening tomato fruits, the leaf-specific carotenoids biosynthesis mediated by phytoene synthase 2 (PSY2) is replaced by a fruit-specific pathway by the expression of two chromoplast-specific genes: phytoene synthase 1 (PSY1) and lycopene-β-cyclase (CYCB). Though both PSY1 and PSY2 genes express in tomato fruits, the functional role of PSY2 is not known. To decipher whether PSY2-mediated carotenogenesis operates in ripening fruits, we blocked the in vivo activity of lycopene-β-cyclases in fruits of several carotenoids and ripening mutants by CPTA (2-(4-Chlorophenylthio)triethylamine hydrochloride), an inhibitor of lycopene-β-cyclases. The CPTA-treatment induced accumulation of lycopene in leaves, immature-green and ripening fruits. Even in psy1 mutants V7 and r that are deficient in fruit-specific carotenoid biosynthesis, CPTA triggered lycopene accumulation but lowered the abscisic acid level. Differing from fruit-specific carotenogenesis, CPTA-treated V7 and r mutant fruits accumulated lycopene but not phytoene and phytofluene. The lack of phytoene and phytofluene accumulation was reminiscent of PSY2-mediated leaf-like carotenogenesis, where phytoene and phytofluene accumulation is never seen. The lycopene accumulation was associated with the partial transformation of chloroplasts to chromoplasts bearing thread-like structures. Our study uncovers the operation of a parallel carotenogenesis pathway mediated by PSY2 that provides precursors for abscisic acid biosynthesis in ripening tomato fruits."xsd:string |
| http://purl.uniprot.org/citations/35151443 | http://purl.org/dc/terms/identifier | "doi:10.1016/j.plantsci.2022.111177"xsd:string |
| http://purl.uniprot.org/citations/35151443 | http://purl.uniprot.org/core/author | "Gupta P."xsd:string |
| http://purl.uniprot.org/citations/35151443 | http://purl.uniprot.org/core/author | "Sharma R."xsd:string |
| http://purl.uniprot.org/citations/35151443 | http://purl.uniprot.org/core/author | "Rodriguez-Franco M."xsd:string |
| http://purl.uniprot.org/citations/35151443 | http://purl.uniprot.org/core/author | "Sreelakshmi Y."xsd:string |
| http://purl.uniprot.org/citations/35151443 | http://purl.uniprot.org/core/author | "Bodanapu R."xsd:string |
| http://purl.uniprot.org/citations/35151443 | http://purl.uniprot.org/core/date | "2022"xsd:gYear |
| http://purl.uniprot.org/citations/35151443 | http://purl.uniprot.org/core/name | "Plant Sci"xsd:string |
| http://purl.uniprot.org/citations/35151443 | http://purl.uniprot.org/core/pages | "111177"xsd:string |
| http://purl.uniprot.org/citations/35151443 | http://purl.uniprot.org/core/title | "Phytoene synthase 2 in tomato fruits remains functional and contributes to abscisic acid formation."xsd:string |
| http://purl.uniprot.org/citations/35151443 | http://purl.uniprot.org/core/volume | "316"xsd:string |
| http://purl.uniprot.org/citations/35151443 | http://www.w3.org/2004/02/skos/core#exactMatch | http://purl.uniprot.org/pubmed/35151443 |
| http://purl.uniprot.org/citations/35151443 | http://xmlns.com/foaf/0.1/primaryTopicOf | https://pubmed.ncbi.nlm.nih.gov/35151443 |
| http://purl.uniprot.org/uniprot/#_P37273-mappedCitation-35151443 | http://www.w3.org/1999/02/22-rdf-syntax-ns#object | http://purl.uniprot.org/citations/35151443 |
| http://purl.uniprot.org/uniprot/P37273 | http://purl.uniprot.org/core/mappedCitation | http://purl.uniprot.org/citations/35151443 |