Zearalenone regulates microRNA156 to affect the root development of Tetrastigma hemsleyanum.

Zearalenone (ZEN) is a secondary metabolite from Fusarium species. It is also present in plants and regulates the photochemical reaction in Photosystem II, the stress response and root growth. To investigate the mechanism by which ZEN regulates Tetrastigma hemsleyanum root growth, differentially expressed microRNAs (miRNAs) were identified and verified by high-throughput sequencing and Agrobacterium rhizogenes-mediated transformation of the roots of T.

Deciphering the potential of a plant growth promoting endophyte sp. WYJ-E13, and functional annotation of the genes involved in the metabolic pathway.

Plant growth-promoting rhizobacteria (PGPR) are well-acknowledged root endophytic bacteria used for plant growth promotion. However, which metabolites produced by PGPR could promote plant growth remains unclear. Additionally, which genes are responsible for plant growth-promoting traits is also not elucidated.

Digital RNA-seq transcriptome plus tissue anatomy analyses reveal the developmental mechanism of the calabash-shaped root in Tetrastigma hemsleyanum.

Tetrastigma hemsleyanum Diels & Gilg ex Diels is a liana plant with promising medicinal and ornamental values. Its calabash-shaped roots (CRs) are served as a traditional Chinese herb. However, it takes a long growth period to form CRs.

Phototransformation-Induced Aggregation of Functionalized Single-Walled Carbon Nanotubes: The Importance of Amorphous Carbon.

Single-walled carbon nanotubes (SWCNTs) with proper functionalization are desirable for applications that require dispersion in aqueous and biological environments, and functionalized SWCNTs also serve as building blocks for conjugation with specific molecules in these applications. In this study, we examined the phototransformation of carboxylated SWCNTs and associated amorphous carbon impurities in the presence or absence of H2O2 under simulated sunlight conditions. We found that while carboxylated SWCNTs were rather unreactive with respect to direct solar photolysis, they photoreacted in the presence of H2O2, forming CO2 and strongly aggregated SWCNT products that precipitated.