Genome-wide identification and expression analysis of the WRKY transcription factor family in flax (Linum usitatissimum L.).

Background: Members of the WRKY protein family, one of the largest transcription factor families in plants, are involved in plant growth and development, signal transduction, senescence, and stress resistance. However, little information is available about WRKY transcription factors in flax (Linum usitatissimum L.).

First Report of Leaf Spot on Industrial Hemp (Cannabis sativa L.) Caused by Alternaria alternata in China.

Industrial hemp is an economically important plant with traditional uses for textiles, paper, building materials, food and medicine (Li 1974; Russo et al. 2008; Zlas et al. 1993).

Exogenous Application of Phytohormones Promotes Growth and Regulates Expression of Wood Formation-Related Genes in × .

Although phytohormones are known to be important signal molecules involved in wood formation, their roles are still largely unclear. Here, × seedlings were treated with different concentrations of exogenous phytohormones, indole-3-acetic acid (IAA), gibberellin (GA₃), and brassinosteroid (BR), and the effects of phytohormones on growth were investigated. Next, 27 genes with known roles in wood formation were selected for qPCR analysis to determine tissue-specificity and timing of responses to phytohormone treatments.

Identification of differentially expressed genes in flax (Linum usitatissimum L.) under saline-alkaline stress by digital gene expression.

The salinization and alkalization of soil are widespread environmental problems, and alkaline salt stress is more destructive than neutral salt stress. Therefore, understanding the mechanism of plant tolerance to saline-alkaline stress has become a major challenge. However, little attention has been paid to the mechanism of plant alkaline salt tolerance.