Auxin and Its Interaction With Ethylene Control Adventitious Root Formation and Development in Apple Rootstock

Tuanhui Bai, Zhidan Dong, Xianbo Zheng, Shangwei Song, Jian Jiao, Miaomiao Wang, Chunhui Song

Frontiers in Plant Science · 2020 · 63 citations · 56 references

DOIFull text

Open access

Concepts

Abstract

) involved in AR formation. Comparison of different periods of IBA application indicated that IBA was necessary for root primordium formation, while long time IBA treatment obviously inhibited root elongation. RNA-seq analysis revealed that many plant hormone metabolism and signal transduction related genes were differentially expressed. IBA stimulated the production of ethylene during AR formation. Auxin inhibiting ARs elongation depended on ethylene. Together, our results suggest that the inhibitory role of auxin on AR elongation in apples is partially mediated by stimulated ethylene production.

References

56