Melatonin delays leaf senescence of postharvest Chinese flowering cabbage through ROS homeostasis.

Reactive oxygen species (ROS) trigger and accelerate leaf senescence. Melatonin, a low molecular compound with several biological functions in plants, is known to delay leaf senescence in different species, including Chinese flowering cabbage. However, the mechanism(s) underpinning melatonin-delayed leaf senescence remains unclear.

Influence of α-terpineol on the growth and morphogenesis of Penicillium digitatum.

Background: Plant essential oils could act effectively against postharvest diseases, α-terpineol, a typical terpenoid of plant essential oils, exhibited strong antifungal activity in against Penicillium italicum, but the possible action mechanism remains undetermined. In present study, α-terpineol was evaluated for antibacterial activity against Penicillium digitatum along with the mode of their antibacterial action.

Results: The results showed that mycelial growth of P.

Comprehensive analysis of expressed sequence tags from the pulp of the red mutant 'Cara Cara' navel orange (Citrus sinensis Osbeck).

Expressed sequence tag (EST) analysis of the pulp of the red-fleshed mutant 'Cara Cara' navel orange provided a starting point for gene discovery and transcriptome survey during citrus fruit maturation. Interpretation of the EST datasets revealed that the mutant pulp transcriptome held a high section of stress responses related genes, such as the type III metallothionein-like gene (6.0%), heat shock protein (2.

[Growth inhibition and mechanism of cetyltrimethyl ammonium chloride on Chlorella vulgaris].

Growth inhibition of cetyltrimethyl ammonium chloride (CTAC), a cationic surfactants, on Chlorella vulgaris was investigated at batch culture in laboratory. Furthermore, the corresponding mechanisms were studied by the determination of absorption capacity, Zeta potential, activity of acid phosphatase and ultrastructure of algae. Results show that the growth inhibition by CATC is enhanced with its concentration increasing from 0.

Fruit coloration difference between Fengwan, a late-maturing mutant and its original cultivar Fengjie72-1 of navel orange (Citrus sinensis Osbeck).

Fruit color is one of the most important external quality traits. Mutants with different color are useful for the study of regulating mechanism of coloration progress. A novel mutant, Fengwan, derived from Fengjie72-1 navel orange (Citrus sinensis L.

Lycopene-epsilon-cyclase pre-mRNA is alternatively spliced in Cara Cara navel orange (Citrus sinensis Osbeck).

Lycopene-epsilon-cyclase is one of the key enzymes related to alpha-carotene metabolism in plants. A full-length cDNA of 1300 bp encoding lycopene-epsilon-cyclase (Lyce) was generated from Cara Cara navel orange, a unique navel orange containing both lycopene and beta-carotene in its pulp, with little or no alpha-carotene. The gene had a 14 bp nucleotides deletion and caused a terminal mutation.