The effects of some coumarins (coumarin, 7-hydroxycoumarin, scopoletin and esculetin) were investigated on pumpkin (Cucurbita maxima Duch.) seedlings and on pumpkin glutathione S-transferases (GSTs). Coumarin and esculetin suppressed the growth of seedlings, especially the elongation of roots as well as hypocotyls. Among the compounds tested, only esculetin inhibited the activity of a particula...

The N-terminal amino-acid sequence of a major rice phloem-sap protein, named RPP10, was determined. RPP10 is encoded by a single gene in the rice genome. Its complete amino-acid sequence, predicted from the corresponding rice full-length cDNA, showed high similarity to plant acyl-CoA-binding proteins (ACBPs). Western blot analysis using anti-ACBP antiserum revealed that putative ACBP is abundan...

Hybrid incompatibility and F1 hybrid dysgenesis in the interspecific hybridization between pumpkin (Cucurbita moschata Duch.) winter squash maxima have been previously noted. For this reason, it is difficult to obtain F2 generations due sterility. However, back-crossing add-crossing can be utilized overcome these barriers hybridization. To date, few studies focused on parental selection, proces...

Background: Cucurbita maxima known as pumpkin belongs to the family Cucurbitaceae, widely used in traditional medicine. Methods: The present work evaluates antioxidant activity of different parts (leaves and fruit) maxima. Antioxidant was assessed through DPPH test β-carotene bleaching test. Result: results showed that ethanolic extract fruit leaves are rich polyphenols, flavonoids tannin with ...

Ralstonia solanacearum species complex is a devastating phytopathogen with an unusually wide host range, and new host plants are continuously being discovered. In June 2016, a new bacterial wilt on Cucurbita maxima was observed in Guangdong province, China. Initially, in the adult plant stage, several leaves of each plant withered suddenly and drooped; the plant then wilted completely, and the ...

The genus Cucurbita has been mentioned as a good source of carotenoids, including β-carotene, which is precursor vitamin A. However, the variability observed for denotes individual need to invest in species. An experiment was carried out with aim evaluating content total carotenoids and β-carotene C. maxima germplasm. Treatments consisted 23 accessions two commercial cultivars maxima. pulp colo...