Affiliation:
1. Biology and Breeding Research Program, Colombian Palm Oil Research Center, Cenipalma, Calle 98 No. 70–91, Piso 14, Bogotá 111121, Colombia
2. Department of Biology, Universidad Nacional de Colombia, Bogotá 111321, Colombia
Abstract
Bud Rot, caused by Phytophthora palmivora, is considered one of the main diseases affecting African oil palm (Elaeis guineensis). In this study, we investigated the in vitro molecular dynamics of the pathogen–host interaction by analyzing gene expression profiles from oil palm genotypes that were either susceptible or resistant to the disease. We observed distinct interactions of P. palmivora with resistant and susceptible oil palms through co-expression network analysis. When interacting with susceptible genotypes, P. palmivora exhibited upregulation of carbohydrate and sulfate transport genes. These genes demonstrated co-expression with apoplastic and cytoplasmic effectors, including cell wall degrading enzymes, elicitins, and RxLR motif effectors. The pathogen manipulated susceptible oil palm materials, exacerbating the response and compromising the phenylpropanoid pathway, ultimately leading to susceptibility. In contrast, resistant materials exhibited control over their response through putative Heat Shock Proteins (HSP) that maintained homeostasis between primary metabolism and biotic defense. Co-expressed genes related to flavonoids, WRKY transcripts, lectin-type receptors, and LRR receptors may play important roles in pathogen control. Overall, the study provides new knowledge of the molecular mechanisms underlying the interaction between E. guineensis and P. palmivora, which can contribute to controlling Bud Rot in oil palms and gives new insights into the interactions of P. palmivora with their hosts.
Funder
Colombian Oil Palm Promotion Fund
Reference73 articles.
1. Histopathological studies of the process of Phytophthora palmivora infection in oil palm;Sarria;Eur. J. Plant Pathol.,2016
2. Assessment of tolerance to bud rot in oil palm under field conditions;Navia;Eur. J. Plant Pathol.,2014
3. Molecular performances of oil palm Elaeis guineensis tolerance to Ganoderma sp;Afandi;J. Phys. Conf. Ser.,2018
4. Avila-Mendez, K., Rodrigo, Á., Araque, L., and Romero, H.M. (2019). Simultaneous transcriptome analysis of oil palm clones and Phytophthora palmivora reveals oil palm defense strategies. PLoS ONE, 14.
5. Pathogen perception and responses in plant immunity;Dodds;Nat. Rev. Genet.,2010
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献