editorial · Frontiers in Microbiology
Integrating genomics and microbial ecology provides essential tools for managing crop diseases and protecting soil biodiversity. Long-term monoculture, such as continuous maize cropping, shifts soil microbial assembly from random processes to environmental selection, altering bacterial and fungal networks over time. Agricultural practices such as rice straw incorporation influence soil fertility, bacterial diversity, and crop yield, with techniques like rotary tillage boosting immediate yields while no-till mulching builds organic matter. At the molecular level, whole-genome sequencing of the asparagus stem blight pathogen reveals virulence pathways tied to cell-wall degradation and thermal stress adaptation. Furthermore, understanding pathogen effector proteins enables targeted resistance breeding through techniques such as CRISPR gene editing, RNA interference, and susceptibility-gene modification, reducing dependence on chemical pesticides.
Intensive farming and crop diseases threaten global food supplies and degrade soil health. By revealing how farming practices alter beneficial soil microbiomes and uncovering how pathogens cause disease, molecular tools support sustainable food production. These insights allow farmers and breeders to improve soil fertility, protect vital soil biodiversity, and breed resilient crops that require fewer chemical treatments.
These findings can guide agricultural biotechnology companies and plant breeders developing disease-resistant crops and microbiome-informed soil management regimens. Technologies such as CRISPR-based editing, RNA interference, and tailored straw-management practices offer practical crop protection pathways. While agronomic straw-return practices are applied and tested in field trials, the genomic resources for asparagus blight and effector-based breeding strategies remain early-stage research requiring further laboratory and field validation.
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The articles collected in this Research Topic highlight the growing integration of genomics and microbial ecology in advancing plant disease management and soil health. Together, they demonstrate how molecular approaches can reveal the mechanisms that shape microbial communities, uncover the genetic basis of pathogen virulence, and support the development of innovative and durable disease-control strategies.One of the recurring themes across this collection is the critical role of soil microbial communities in maintaining agricultural productivity and ecosystem stability. Han et al. (2025) explored how continuous maize cropping influences microbial community assembly over a cultivation period extending from one to twenty-five years. Their study provides compelling evidence that long-term monoculture substantially alters both bacterial and fungal communities. As cropping duration increased, bacterial communities became increasingly dominated by specific taxa, whereas dominant fungal groups gradually declined. Importantly, the authors demonstrated that microbial community assembly shifted from being largely stochastic to being increasingly governed by deterministic processes, particularly heterogeneous environmental selection. Changes in microbial co-occurrence networks further suggested that long-term continuous cropping reshapes ecological interactions within soil microbiomes. These findings deepen our understanding of how intensive agricultural practices influence microbial succession and provide a valuable ecological framework for designing sustainable soil-management strategies.The importance of agricultural management practices in shaping soil microbial ecology is further illustrated by the work of Tang et al. (2025) who investigated the effects of different rice strawreturn methods in karst paddy fields. By combining field experiments with 16S rRNA sequencing, the authors demonstrated that straw incorporation not only improved soil fertility but also influenced bacterial community composition, assembly processes, and interaction networks. Different straw-return methods generated distinct ecological outcomes, highlighting the importance of selecting management practices according to production goals. While rotary tillage incorporation produced the highest rice yield, no-till mulching and bioreactor treatments enhanced soil organic matter and nutrient accumulation while promoting more structured microbial communities. Their results further revealed that bacterial β-diversity and total nitrogen were among the strongest determinants of rice productivity. This study emphasizes that crop performance is shaped by the combined effects of soil physicochemical properties and microbial ecological processes, reinforcing the importance of microbiome-informed management approaches for sustainable agriculture.Beyond soil microbial ecology, this Research Topic also showcases the transformative role of genomics in understanding plant pathogens and improving disease control. Duan et al. ( 2025) provide the first whole-genome sequence of Phomopsis asparagi (Diaporthe asparagi), the fungal pathogen responsible for asparagus stem blight. This work represents a significant step forward in understanding the biology of an economically important disease that affects asparagus production worldwide. Through genome annotation and comparative transcriptomic analyses, the authors identified a range of virulence-associated pathways linked to oxidative stress responses, reactive oxygen species metabolism, cell-wall degradation, and programmed cell death. Their investigation of pathogen responses under elevated temperature conditions revealed a sophisticated molecular adaptation system involving stress signaling, metabolic reprogramming, DNA repair, and enzymatic activities associated with host colonization. These genomic resources and mechanistic insights establish a valuable foundation for future research aimed at developing more effective and targeted disease-management strategies.Advances in understanding pathogen biology are closely linked to innovations in plant resistance breeding. In this regard, Senthilraja et al. ( 2025) review emerging strategies that target pathogen effector proteins to achieve durable disease resistance. Effectors play a central role in plantpathogen interactions by manipulating host cellular processes and suppressing immune responses. The authors discuss a range of promising approaches, including susceptibility-gene modification, CRISPR/Cas-based genome editing, RNA interference technologies, and the use of synthetic decoys to enhance immune recognition. By focusing on effector biology, these approaches offer opportunities to develop crop varieties with broader and more durable resistance while reducing reliance on chemical control measures. The review highlights how advances in molecular genetics and biotechnology are reshaping plant protection strategies and contributing to long-term food security.Collectively, the studies presented in this Research Topic illustrate the increasingly interconnected nature of microbial ecology, genomics, and plant pathology. Although they address different biological systems and agricultural contexts, they converge on a common objective: understanding biological processes at molecular, genomic, and community levels to support more sustainable crop production systems. The studies on microbial communities demonstrate how agricultural practices shape soil ecosystem functioning and crop performance, while the genomics-focused contributions reveal the molecular mechanisms underlying pathogen virulence and plant resistance.Several broader messages emerge from this body of work. First, sustainable disease management cannot be achieved by focusing solely on pathogens; it must also account for the broader soil microbiome and its ecological functions. Second, advances in sequencing technologies continue
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DOI: 10.3389/fmicb.2026.1901274
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