Effect of storage temperature and light irradiation on respiration rate, red color development, and gene expression involved in carotenoid synthesis in green bell pepper (<i>Capsicum annuum</i> L.)

Benyakart, N.; Ciptaningtyas, Drupadi; Umehara, H.; Nagata, Minoru; Thammawong, M.; Shiina, T.

doi:10.17660/actahortic.2021.1312.64

Cited by 1 publication

(1 citation statement)

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“…63 High temperature and light irradiation activated carotenoid biosynthesis genes such as PSY, CRTZ, ζ-Carotene desaturase (ZDS), and CCS in green pepper fruit and induced the carotenoid formation in C. annuum (Figure 2). 130 Low temperature and pre-and postharvest application of low doses of UVB and C elicited chlorogenic acid, apigenin-7-Oglucoside, and luteolin-7-O-glucoside (flavonoids) and carotenoid accumulation in pepper fruits and leaves. 131 Moderate cold and salt stress could induce higher accumulation of flavonoids such as cymaroside and graveobioside A in the leaves of two Capsicum cultivars without much compromising of the growth and photosynthetic capacity.…”

Section: Elicitor Treatment and Mineralmentioning

confidence: 99%

Genetic Regulation, Environmental Cues, and Extraction Methods for Higher Yield of Secondary Metabolites in Capsicum

Islam

Rawoof

Kumar

et al. 2023

J. Agric. Food Chem.

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Capsicum (chili pepper) is a widely popular and highly consumed fruit crop with beneficial secondary metabolites such as capsaicinoids, carotenoids, flavonoids, and polyphenols, among others. Interestingly, the secondary metabolite profile is a dynamic function of biosynthetic enzymes, regulatory transcription factors, developmental stage, abiotic and biotic environment, and extraction methods. We propose active manipulable genetic, environmental, and extraction controls for the modulation of quality and quantity of desired secondary metabolites in Capsicum species. Specific biosynthetic genes such as Pun (AT3) and AMT in the capsaicinoids pathway and PSY, LCY, and CCS in the carotenoid pathway can be genetically engineered for enhanced production of capsaicinoids and carotenoids, respectively. Generally, secondary metabolites increase with the ripening of the fruit; however, transcriptional regulators such as MYB, bHLH, and ERF control the extent of accumulation in specific tissues. The precise tuning of biotic and abiotic factors such as light, temperature, and chemical elicitors can maximize the accumulation and retention of secondary metabolites in pre-and postharvest settings. Finally, optimized extraction methods such as ultrasonication and supercritical fluid method can lead to a higher yield of secondary metabolites. Together, the integrated understanding of the genetic regulation of biosynthesis, elicitation treatments, and optimization of extraction methods can maximize the industrial production of secondary metabolites in Capsicum.

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Section: Elicitor Treatment and Mineralmentioning

confidence: 99%