Ecophysiological Trade-Off Strategies of Three Gramineous Crops in Response to Root Extracts of .

The invasive L. poses a significant threat to local agroforestry ecosystems due to its allelopathic toxicity. However, the ecophysiological response mechanisms of crops to allelochemicals remain unclear.

A Novel Tyrosinase Gene Plays a Potential Role in Modification the Shell Organic Matrix of the Triangle Mussel .

Although tyrosinases have been speculated to participate in the shell formation of mollusks, there is still a lack of experimental evidence to support this assumption. In this study, a novel tyrosinase designated was isolated and characterized from the freshwater mussel . The change in mRNA expression during the process of embryonic development was detected by real-time quantitative PCR.

Effects of Arbuscular Mycorrhizal Fungi Glomus mosseae on the Growth and Medicinal Components of Dysosma versipellis Under Copper Stress.

In order to investigate the effects of arbuscular mycorrhizal fungi (AMF) (Glomus mosseae) inoculations and additions of copper (Cu) ion at gradual concentrations (0, 200, and 400 mg kg) on different parameters of Dysosma versipellis such as growth, lipid peroxidation (MDA and MRP), antioxidation enzymatic (SOD, POD and CAT) activities, and active medicinal components. Pot experiments have been conducted. The results showed that additions of Cu could inhibit growth and the activity of antioxidant enzymes, increase the degree of membrane lipid peroxidation, and decrease the podophyllotoxin content of D.

Cadmium accumulation in different pakchoi cultivars and screening for pollution-safe cultivars.

The selection and breeding of pollution-safe cultivars (PSCs) is a practicable and cost-effective approach to minimize the influx of heavy metal to the human food chain. In this study, both pot-culture and field experiments were conducted to identify and screen out cadmium pollution-safe cultivars (Cd-PSCs) from 50 pakchoi (Brassica rapa L. ssp.

[Differences in cadmium absorption and accumulation of Brassica varieties on cadmium-polluted soil].

A pot experiment was conducted to study the differences in cadmium (Cd) absorption and accumulation of sixty Brassica varieties on the soils added with different concentration of Cd. The results showed that when the soil Cd concentration was 0.6 mg x kg(-1) and 1.