Título:	Induced chilling injury in banana: physiological and quality responses of cultivars to natural cold front.
Autoria:	LIMA, J. D. PEREIRA, M. R. ROZANE, D. E. SILVA, S. H. M. G. da GOMES, E. N. NOMURA, E. S. GIACHETTO, P. F.
Afiliação:	JULIANA DOMINGUES LIMA, UNIVERSIDADE ESTADUAL PAULISTA "JÚLIO DE MESQUITA FILHO"; MARIANE RODRIGUES PEREIRA, UNIVERSIDADE ESTADUAL PAULISTA "JÚLIO DE MESQUITA FILHO"; DANILO EDUARDO ROZANE, UNIVERSIDADE ESTADUAL PAULISTA "JÚLIO DE MESQUITA FILHO"; SILVIA HELENA MODENESE GORLA DA SILVA, UNIVERSIDADE ESTADUAL PAULISTA "JÚLIO DE MESQUITA FILHO"; EDUARDO NARDINI GOMES, UNIVERSIDADE ESTADUAL PAULISTA "JÚLIO DE MESQUITA FILHO"; EDSON SHIGUEAKI NOMURA, AGÊNCIA PAULISTA DE TECNOLOGIA DOS AGRONEGÓCIOS; POLIANA FERNANDA GIACHETTO, CNPTIA.
Ano de publicação:	2026
Referência:	Agriculture, v. 16, n. 11, 1193, June 2026.
Conteúdo:	Banana fruits are susceptible to chilling injury (CI) under field conditions, which significantly impairs fruit quality. Cold tolerance varies among genotypes; however, only a limited number of cultivars have been identified as tolerant and are commercially cultivated. This study aimed to investigate the physiological responses and quality attributes of banana cultivars exposed to natural cold fronts during development, compared with fruits developed under summer conditions. Furthermore, it evaluated whether the B genome confers greater cold tolerance, driven by a more efficient antioxidant mechanism, thereby supporting its recommendation for cultivation in regions prone to low temperatures. Bunches were harvested in winter following five natural cold fronts, during which air temperatures fell below 12 °C (137 h). The experimental design followed a completely randomized design in a factorial arrangement. Consecutive cold fronts intensified CI symptoms up to the fourth exposure event. CI severity was highest in ‘Grande Naine’ (AAA), which exhibited lower L*, a*, and b* values at the ripe stage compared to ‘BRS Princesa’ (AAAB) and ‘Prata Catarina’ (AAB), along with greater deviations relative to summer-harvested fruits. Malondialdehyde (MDA), total phenolic content, and antioxidant enzyme activities (SOD, CAT, APX, and POD) in the peel of unripe fruits were significantly higher during winter, particularly in ‘BRS Princesa’ and ‘Prata Catarina’, compared to ‘Grande Naine’. Proline accumulation followed a similar pattern, with the highest levels observed in ‘BRS Princesa’, followed by ‘Prata Catarina’ and ‘Grande Naine’. The findings indicate that ‘BRS Princesa’ exhibits greater tolerance to cold stress and highlights of the contribution of the B genome. Phenolic content was identified as a consistent marker of seasonal variation across cultivars.
Thesagro:	Banana Musa sp Prolina
NAL Thesaurus:	Cold stress Cold tolerance Oxidative stress Antioxidants Phenolic compounds Proline
Palavras-chave:	Estresse por frio Cultivar de banana Tolerância ao frio Estresse oxidativo Enzimas antioxidantes Compostos fenólicos Banana cultivars Antioxidant enzymes
ISSN:	2077-0472
Digital Object Identifier:	https://doi.org/10.3390/agriculture16111193
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CNPTIA)