Cicer arietinum, Ascochyta rabiei, Elicitor. Isoflavones, Phytoalexins Upon slicing cotyledons of chickpea, Cicer arietinum L ., accumulate the pterocarpan phyto­ alexins medicarpin and maackiain. Treatment of this tissue with an elicitor from the phytopathogenic deuteromycete Ascochyta rabiei (Pass.) Lab. greatly enhances accumulation of the pterocarpans and of other isoflavones and flavonoids...

effects of yeast extract (ye) (0, 0.05, 0.1, 0.2, 0.5 and 1%) were investigated on rosmarinic acid (ra) accumulation and tyrosine aminotransferase (tat) gene expression in melissa officinalis seedlings at different time intervals (4 and 17 hours). based on the results, only ye concentrations of 0.05%, 0.1%, and 0.2%, for the 17-hour treatment, significantly stimulated ra biosynthesis pathway. a...

to develop an optimal bioprocess for benzophenanthridin alkaloids production, various metabolite engineering are studied to increase yields, in which one of them is elicitation. elicitors are biotic or abiotic molecules that have effectively stimulated the production of plant secondary metabolites in cell and organ cultures. since this plant serves as the only commercial source of morphine and ...

The influence of elicitation on rosmarinic acid biosynthesis by Lavandula vera MM cell suspension culture was investigated using vanadyl sulfate as an abiotic elicitor. It was established that 12 h after treatment with 25 mg/l vanadyl sulfate the rosmarinic acid production was increased up to 3.92 g/l (2.8 times higher compared to the control cultivation). No significant amounts of rosmarinic a...

Endopolygalacturonic acid lyase, purified from the phytopathogenic bacterium, Erwinia carotovora , induces phytoalexin accumulation in soybean ( Glycine max L .) cotyledons. This pectin-degrading enzyme releases heat-stable elicitors of phytoalexin accumulation from soybean cell walls, citrus pectin, and citrus sodium polypectate. The most elicitor-active m olecules ob­ tained by treating soybe...

This study extends meeting research by applying social network analysis to meeting leaders’ behavior in actual, videotaped meetings (N = 46) and examining the position of meeting leaders in the meeting network. Analyses reveal that meeting leaders are key players in meetings taking on the roles of central actor, broker, and elicitor. The role of central actor is linked to the number of planned ...

A soluble elicitor of glyceollin accumulation was released from insoluble mycelial walls of Phytophthora megasperma var. sojae after incubation with soybean cotyledon tissue for as little as 2 minutes. Various enzymic and chemical treatments of the released elicitor indicated that the activity resided in a carbohydrate moiety, and gel filtration disclosed the presence of at least two active mol...