Auxin Dynamics and Transcriptome-Metabolome Integration Determine Graft Compatibility in Litchi (<i>Litchi chinensis</i> Sonn.).

ABSTRACT: Grafting is a prevalent horticultural technique that enhances crop yields and stress resilience; nevertheless, compatibility issues frequently constrain its efficacy. This research examined the physiological, hormonal, and transcriptional factors regulating compatibility between the litchi (Litchi chinensis Sonn.) cultivars Feizixiao (FZX) and Ziniangxi (ZNX). The anatomical and growth investigations demonstrated significant disparities between compatible (FZX as scion and ZNX as rootstock) and incompatible (ZNX as scion and FZX as rootstock) grafts, with the latter showing reduced levels of indole acetic acid (IAA). Exogenous 1-naphthalene acetic acid (NAA) application markedly improved the graft survival, shoot development, and hormonal synergy, whereas the auxin inhibitor tri-iod

SUBMITTER: Chen Z 

PROVIDER: S-EPMC12072320 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature