Review on influencing factors of plant grafting affinity
The graft compatibility has a direct impact on the success rate of grafted plants.Analysis the grafting affinity of plants and select the suitable and excellent grafting varieties for cultivation can reduce the time and economic cost,and improve the overall benefit of grafted plants.In this paper,the influencing factors of plant graft affinity were reviewed from four aspects:morphological index,cell histology,physiological and biochemical regulation mechanism,and the molecular level.It was found that plant morphological indicators would affect plant graft affinity,like the growth potential of grafted plants,the growth rate of new shoots and the degree of healing of grafted mouth.The cell tissue processes such as callus formation,cellular desmosis formation and callus differentiation in the healing process of grafted plants and the physiological would affect plant graft affinity.Biochemical processes of water,chlorophyll,soluble sugar,starch,amino acids,soluble protein,phenols,enzymes and plant hormones in grafted plants were also the affect factors of plant graft affinity.Molecular level of genomic relationship between grafted plants,expression of relevant genes in the transcriptome,protein expression and interactions would also affect plant graft affinity.The influence factors of grafting affinity of each plant are different,and appropriate indexes should be screened for analysis.
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