Plant pathogenesis: Toward multidimensional understanding of the microbiome

Abstract

Single pathogen‐targeted disease management measure has shown drawbacks in field efficacy under the scenario of global change. An in‐depth understanding of plant pathogenesis will provide a promising solution but faces the challenges of the emerging paradigm involving the plant microbiome. While the beneficial impact of the plant microbiome is well characterized, their potential role in facilitating pathological processes has so far remained largely overlooked. To address these unsolved controversies and emerging challenges, we hereby highlight the pathobiome, the disease‐assisting portion hidden in the plant microbiome, in the plant pathogenesis paradigm. We review the detrimental actions mediated by the pathobiome at multiple scales and further discuss how natural and human triggers result in the prevalence of the plant pathobiome, which would probably provide a clue to the mitigation of plant disease epidemics. Collectively, the article would advance the current insight into plant pathogenesis and also pave a new way to cope with the upward trends of plant disease by designing the pathobiome‐targeted measure.

Soil Microorganisms in Agricultural Fields and Agronomic Regulation Pathways

“…For example, soil feedback initiated by microbial activity can trigger the production of secondary metabolites, such as benzoxazines, by plants, activating the salicylic acid signaling pathway and subsequently enhancing defense mechanisms against pathogens [4]. However, the intricate relationships among microorganisms, including intra-and interspecies interactions as well as transboundary interactions, may sometimes lead to microorganisms aiding pathogens in invading crops by forming partnerships with them [34].…”

Revisiting the current and emerging concepts of postharvest fresh fruit and vegetable pathology for next‐generation antifungal technologies

“…B. Miller et al, 2002;Singh et al, 2000). For a better understanding of the mechanism of the pathobiome in infection, further efforts are expected to identify signaling molecules and regulatory systems supporting the QS and QQ (Lv et al, 2023).…”

“…Less is known about what the fungi will earn from this collaboration. Bacteria are suggested to attach themselves to the hyphae of fungi and promote their survival and dispersal and, consequently, the disease's progression (Lv et al, 2023). The collaboration between microbes is characterized by the formation of various biofilms, including fungal biofilms and even bacterial and fungal biofilms (when there is interkingdom cooperation).…”

Managing Macadamia Decline: A Review and Proposed Biological Control Strategies

“…The microbiome plays a key role in plant health and disease [14]. The utilization of beneficial biological control microbes presents a promising alternative to combat soilborne diseases [15,16]. Numerous biological control agents, including Bacillus, Pseudomonas, Trichoderma, Streptomyces, Flavobacteria, Enterobacter, Actinomycetes, Serratia, Alcaligenes, and Klebsiella strains, function as disease antagonists, rhizosphere colonizers, and plant growth promoters [17,18].…”