Comparative Analysis of Phytohormone Biosynthesis Genes Responses to Long-Term High Light in Tolerant and Sensitive Wheat Cultivars.

Phytohormones are vital for developmental processes, from organ initiation to senescence, and are key regulators of growth, development, and photosynthesis. In natural environments, plants often experience high light (HL) intensities coupled with elevated temperatures, which pose significant threats to agricultural production. However, the response of phytohormone-related genes to long-term HL exposure remains unclear.

[Studies on the dynamic trends of diosgenin content in vegetative organs of Dioscorea zingiberensis].

Diosgenin was determined by HPLC to study dynamic trend of diosgenin content in vegetative organs especially the rhizome, and the differences of diosgenin content between strains and between male and female rhizomes of Dioscorea zingiberensis C. H. Wright.

[Development of aloin cells and accumulation of anthraquinone in aloe leaf].

The development of aloin cells and its relationship with the accumulation of anthraquinone in aloe leaf were investigated with the methods of paraffin section, semi-thin section, histochemistry and fluorescent microscopy. The results showed: cells rounded the procambium bundle differentiated into bundle sheath at the initial stage of procambium bundle developing into vascular bundle. When the sieve tube members appeared in protophloem, there were a lay of procambium bundle cells reserved between the sieve tube members and bundle sheath.