(Papaveraceae), a new species revealed by population-level investigation.

, a new species of Papaveraceae in an alpine meadow from Yunnan, Southwest China, is described and illustrated. Morphologically, it resembles , while it is distinct in acaulescent and hispid with clearly expanded bases on the leaves. A genus-level molecular phylogenetic analysis supported the closest relationship between and .

Recent advances on cyclodepsipeptides: biologically active compounds for drug research.

Cyclodepsipeptides are a large family of peptide-related natural products consisting of hydroxy and amino acids linked by amide and ester bonds. A number of cyclodepsipeptides have been isolated and characterized from fungi and bacteria. Most of them showed antitumor, antifungal, antiviral, antimalarial, and antitrypanosomal properties.

Two new furofuran lignan glycoside derivatives from the fruit of .

Phytochemical investigation of 95% ethanol extract of the fruit of resulted in the isolation of two new furofuran lignan glycoside derivatives pinoresinoside A () and phillyrigeninside A (), along with three known ones. Their structures were established based on extensive spectroscopic data analyses and comparison with literature data. Absolute configuration of was determined by CD method.

Nitrogen fixation characteristics of root nodules in different peanut varieties and their relationship with yield.

Root nodules in peanut (Arachis hypogaea L.) could directly utilize nitrogen (N) in the atmosphere as N source, which plays an important role in the N supply in peanut. However, little is known about the mechanism of efficient N fixation by root nodule.

[Differences in nitrogen utilization characteristics of different peanut genotypes in high fertility soils].

A total of twenty genotypes of peanut (Arachis hypogaea) were used to investigate the differences in nitrogen (N) utilization characteristics in a pot experiment with N isotope tracing analysis. Results showed the main N sources for peanut in high fertility soils following as soil N source > N fixed by root nodule source > fertilizer N source. The N uptake and accumulation in peanut from total N and the three N supplied sources (fertilizer N, soil N and N fixation) varied among the different genotypes.