Validamycin A Inhibited FB Biosynthesis by the Target FvNth in .

Validamycin A (VMA) is an antifungal antibiotic derived from commonly used in plant disease management. Surprisingly, VMA was discovered to impede the production of fumonisin B1 (FB) in agricultural settings. However, the specific target of VMA in remained unclear.

[Effects of Cadmium on Ca2+ and IRE1 signaling pathway in GC2 spd cells].

Objective: To study the effects of cadmium on autophagy in germ cells (GC-2 spd cells) through Ca2+ and IRE1 pathway.

Methods: The viability of GC-2 spd cells was determined using a CCK-8 assay to establish the concentration of cadmium treating . MDC staining was employed to assess autophagosome formation.

Transcriptional Regulator PhlH Modulates 2,4-Diacetylphloroglucinol Biosynthesis in Response to the Biosynthetic Intermediate and End Product.

Certain strains of biocontrol bacterium produce the secondary metabolite 2,4-diacetylphloroglucinol (2,4-DAPG) to antagonize soilborne phytopathogens in the rhizosphere. The gene cluster responsible for the biosynthesis of 2,4-DAPG is named and it is still unclear how the pathway-specific regulator within this gene cluster regulates the metabolism of 2,4-DAPG. Here, we found that PhlH in strain 2P24 represses the expression of the gene encoding the 2,4-DAPG hydrolase by binding to a sequence motif overlapping with the -35 site recognized by σ factors.

[Function of auxin-binding protein gene during cucumber fruit development].

A cDNA fragment that encodes auxin-binding protein 1 was amplified by, reverse polymerase chain reaction from ovary of cucumber. Its expression signals were weak in the ovary of 1 d before anthesis, while got strong in 2, 4 and 6 d after pollination. Among the unpollinated ovary of 2 d after anthesis, those that got enlarged had strong expression signals; the others that were wilting had weak signals.