Bruna Orsi, C. Demétrio, J. Jacob, P. H. V. Rodrigues
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引用次数: 1
摘要
萜烯是焦磷酸异戊烯基(IPP)和焦磷酸二甲基烯基(DMAPP)产生的次生代谢物。考虑到d -柠檬烯在生物和非生物胁迫条件下的作用,我们测试了d -柠檬烯,一种被认为在植物防御和色素分子中起作用的萜烯,以监测它在番茄果实成熟过程中对类胡萝卜素萜烯色素积累的影响。将浓度为0.0、1.0和2.0 mL∙L -1每周喷洒在番茄植株“Micro-Tom”上,直至收获。分别在成熟青期(MG)、破期(BR)、破期后3 d (BR + 3)、红熟期(RR)收获果实,测定类胡萝卜素浓度。d -柠檬烯的施用提高了番茄果实成熟前期和成熟果实的类胡萝卜素浓度,且随着剂量的增加,类胡萝卜素积累量增大。该研究结果将植物防御与果实中具有公认抗氧化能力的分子积累联系起来,为园艺和食品营养研究带来重要贡献。
: Terpenes are secondary metabolites produced from isopentenyl pyrophosphate (IPP) and dimethylallyl pyrophosphate (DMAPP). Considering their role against biotic and abiotic stress conditions, the D-limonene, a terpene recognized for its roles in plant defense and as pigment molecules, was tested to monitor its impact in the accumulation of carotenoid terpene pigments during tomato fruit ripening. The concentrations of 0.0, 1.0, and 2.0 mL∙L –1 were sprayed weekly on tomato plants ‘Micro-Tom’ until the harvest. The fruits were harvested at the mature green stage (MG), the breaker stages (BR), three days after the breaker (BR + 3), the red ripe stage (RR), and the concentration of carotenoids was evaluated. The application of D-limonene enhanced the concentration of carotenoids in the early stages of tomato fruit ripening and ripe fruits, and the accumulation of carotenoids was greater following dose increment. This result can bring important contributions to horticulture and food nutrition by linking plant defense and the accumulation of molecules with recognized antioxidant capacity in fruit.
期刊介绍:
Bragantia é uma revista de ciências agronômicas editada pelo Instituto Agronômico da Agência Paulista de Tecnologia dos Agronegócios, da Secretaria de Agricultura e Abastecimento do Estado de São Paulo, com o objetivo de publicar trabalhos científicos originais que contribuam para o desenvolvimento das ciências agronômicas.
A revista é publicada desde 1941, tornando-se semestral em 1984, quadrimestral em 2001 e trimestral em 2005.
É filiada à Associação Brasileira de Editores Científicos (ABEC).