Molecular regulatory mechanisms of cambium activity in woody plants
The vascular cambium is located between the xylem and phloem,which is responsible for many growth and development processes,and also plays an important role in wood production.In simulating cambium growth and potential molecular processes,deep imaging combined with gene expression analysis is a cutting-edge research direction,and mathematical modeling and simulation combined with real-time imaging have important application prospects.Based on this technique,some representative achievements at the molecular level of cambium activity are summarized,and the future research prospects are proposed.At present,molecular studies on cambium activity in plants mainly focus on:(1)cambium activity is regulated by plant hormone signaling;(2)cambium activity is regulated by transcription factors and peptide receptor signaling;(3)cambium activity is regulated by receptor kinase signals peptide receptor signaling.The main conclusions are that WOX4,WOX14,HB4,HB7,HB8 and ANT positively regulate the activities of tree cambium and can be used as the first choice for transgenic wood roughening breeding.In the future,the analysis of cell-to-cell communication connections in the cambium through computer models can better analyze the molecular mechanism of vascular cambium development in woody plants.[Ch,3 tab.68 ref.]
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