JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2021, Vol. 45 ›› Issue (1): 1-12.doi: 10.12302/j.issn.1000-2006.202010001

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A review on the studies of molecular interaction between forest trees and phytopathogens

TIAN Chengming(), WANG Xiaolian(), YU Lu, HAN Zhu   

  1. The Key Laboratory for Silviculture and Conservation of Ministry of Education, College of Forestry, Beijing Forestry University, Beijing 100083, China
  • Received:2020-10-02 Accepted:2020-12-29 Online:2021-01-30 Published:2021-02-01

Abstract:

In recent years, great achivements have been made on the study of the molecular interaction between forest trees and phytopathogens. Particularly, thanks to the novel technology including HIGS and CRISPR/Cas9, there are many breakthroughs towards the functional analysis of key virulence-related genes, pathogen genome and transcriptome analysis, pathogenic effector protein analysis, functional analysis of R gene in forest trees, the balance between disease resistance and growth and molecular breeding for disease control. This paper starts with the basic issue of molecular plant-pathogen interaction currently and reviews the current progress and hotspots of molecular interaction between forest trees and pathogens, including the signal network of pathogen invasion, the detoxification mechanism of reactive oxygen species and the multiple action mechanisms of effector proteins, the research progress of omics between trees and pathogens, the key defense mechanism of trees, the interaction mechanism between trees and endophytic fungi and exophytic fungi, and so on. Based on the current research progress, we prospect the future development trend of tree-pathogen molecular interaction. At the same time, the emergence of new theories such as the Zigzag model and Decoy hypothesis, new technologies such as efficient sequencing and molecular manipulation, and new research directions such as effector protein and immune receptor interaction indicate a whole new stage of forest trees and pathogen interactions.

Key words: forest trees immunity, molecular breeding, molecular interaction, phytopathogen, effector

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