Common Names: southern Chinese pine, Chinese pine
Chinese pine trees respond to caterpillar feeding by altering hormone levels, gene expression, and metabolites. Findings shed light on plant resistance mechanisms, specifically how JA activates, aiding in understanding conifer defense against insects.
Scientists sequenced the chloroplast genome of a rare subtropical pine. The genome was 119,634 base pairs long and contained 114 genes. This study provides new data for taxonomic and phylogenetic studies of Pinus.
Scientists identified and characterized 124 HMGR genes in 36 plant species, finding more in vascular plants. Two genes, LerHMGR1 and LerHMGR2, were highly expressed during shikonin biosynthesis. This provides insight into the evolutionary properties and function of the HMGR family in plants, and can be used to improve the production of secondary metabolites.
Researchers identified and characterized 104 LEA genes in conifer P. tabuliformis. PtLEA22 was found to play a key role in cold acclimation and enhanced freezing tolerance in Arabidopsis. PtDREB1 was identified as a potential regulator of PtLEA22 expression. This study provides insights into the molecular mechanisms of cold acclimation in conifers.