Determination of Graft Compatibility of Pear Cultivars Grafted on Different Rootstocks by Carbohydrate Analyses

Coban, Nermin; Öztürk, Ahmet

doi:10.1007/s10341-021-00630-1

Cited by 3 publications

(1 citation statement)

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“…Meanwhile, we analyzed the expression pattern of DEGs enriched in the “starch and sucrose metabolism” pathway, and more DEGs were highly expressed in the healing process in heterografts compared with homografts, which indicates that there was a greater accumulation of sugar in heterografts ( Figure 7 ). There has been some research that reported that soluble sugars were accumulated in incompatible graft combinations [ 51 ]. In a recently study of pear cultivars grafted on different rootstocks, compared with heterografts, the sugar content was the lowest in homografts [ 52 ].…”

Section: Discussionmentioning

confidence: 99%

Comparisons of Anatomical Characteristics and Transcriptomic Differences between Heterografts and Homografts in Pyrus L.

Liang

Yang

et al. 2022

Plants

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Pear (Pyrus L.) is an important temperate fruit worldwide, and grafting is widely used in pear vegetative propagation. However, the mechanisms of graft healing or incompatibility remain poorly understood in Pyrus. To study the differences in graft healing in Pyrus, the homograft “Qingzhen D1/Qingzhen D1” and the heterograft “QAUP-1/Qingzhen D1” as compatibility and incompatibility combinations were compared. Anatomical differences indicated the healing process was faster in homografts than in heterografts. During the healing process, four critical stages in graft union formation were identified in the two types of grafts. The expression of the genes associated with hormone signaling (auxin and cytokinins), and lignin biosynthesis was delayed in the healing process of heterografts. In addition, the PbBglu13 gene, encoded β-glucosidase, was more highly up-regulated in heterografts than in homografts to promote healing. Meanwhile, the most of DEGs related starch and sucrose metabolism were found to be up-regulated in heterografts; those results indicated that cellulose and sugar signals were also involved in graft healing. The results of this study improved the understanding of the differences in the mechanisms of graft healing between homografts and heterografts.

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Section: Discussionmentioning

confidence: 99%