生物膜的形成代表了自然环境中微生物的关键和适应性特征。这个属性在不同的环境中起着多方面的作用,包括环境,水生,工业,和医疗系统。虽然以前的研究主要集中在生物膜的不利影响,有效地利用他们的潜力可以给人类带来巨大的优势。面对不断升级的环境压力(例如,干旱,盐度,极端温度,和重金属污染),危及全球作物产量,提高作物抗逆性成为恢复充足粮食生产的首要努力。最近,生物膜形成植物生长促进细菌(PGPB)已成为农业应用的有希望的候选者。这些生物膜是微生物在植物根上定殖的证据。它们卓越的抗压能力使作物即使在恶劣的条件下也能茁壮成长。这是通过增加根定植来实现的,改善土壤特性,和有价值的次生代谢物的合成(例如,ACC脱氨酶,醋精,2,3-丁二醇,脯氨酸,等。).本文阐明了在环境挑战中形成生物膜的PGPB在促进植物生长中的作用的机制。此外,它探索了这些生物膜在农业中的实际应用,并深入研究了操纵生物膜形成以在实际作物生产场景中获得最大利益的策略。
Biofilm formation represents a pivotal and adaptable trait among microorganisms within natural environments. This attribute plays a multifaceted role across diverse contexts, including environmental, aquatic, industrial, and medical systems. While previous research has primarily focused on the adverse impacts of biofilms, harnessing their potential effectively could confer substantial advantages to humanity. In the face of escalating environmental pressures (e.g., drought, salinity, extreme temperatures, and heavy metal pollution), which jeopardize global crop yields, enhancing crop stress tolerance becomes a paramount endeavor for restoring sufficient food production. Recently, biofilm-forming plant growth-promoting bacteria (PGPB) have emerged as promising candidates for agricultural application. These biofilms are evidence of microorganism colonization on plant roots. Their remarkable stress resilience empowers crops to thrive and yield even in harsh conditions. This is accomplished through increased root colonization, improved soil properties, and the synthesis of valuable secondary metabolites (e.g., ACC deaminase, acetin, 2,3-butanediol, proline, etc.). This article elucidates the mechanisms underpinning the role of biofilm-forming PGPB in bolstering plant growth amidst environmental challenges. Furthermore, it explores the tangible applications of these biofilms in agriculture and delves into strategies for manipulating biofilm formation to extract maximal benefits in practical crop production scenarios.