Lee Sang-Moo, Ryu Choong-Min
Molecular Phytobacteriology Laboratory, Infectious Disease Research Center, KRIBB, Daejeon, South Korea.
Department of Biosystems and Bioengineering, KRIBB School of Biotechnology, University of Science and Technology, Daejeon, South Korea.
Front Plant Sci. 2021 Feb 4;12:599742. doi: 10.3389/fpls.2021.599742. eCollection 2021.
Previously, algae were recognized as small prokaryotic and eukaryotic organisms found only in aquatic habitats. However, according to a recent paradigm shift, algae are considered ubiquitous organisms, occurring in plant tissues as well as in soil. Accumulating evidence suggests that algae represent a member of the plant microbiome. New results indicate that plants respond to algae and activate related downstream signaling pathways. Application of algae has beneficial effects on plant health, such as plant growth promotion and disease control. Although accumulating evidence suggests that secreted compounds and cell wall components of algae induce physiological and structural changes in plants that protect against biotic and abiotic stresses, knowledge of the underlying mechanisms and algal determinants is limited. In this review, we discuss recent studies on this topic, and highlight the bioprotectant and biostimulant roles of algae as a new member of the plant beneficial microbiome for crop improvement.
以前，藻类被认为是仅存在于水生栖息地的小型原核生物和真核生物。然而，根据最近的范式转变，藻类被视为无处不在的生物，存在于植物组织以及土壤中。越来越多的证据表明，藻类是植物微生物组的成员。新的研究结果表明，植物对藻类有反应并激活相关的下游信号通路。藻类的应用对植物健康有有益影响，如促进植物生长和控制病害。尽管越来越多的证据表明，藻类分泌的化合物和细胞壁成分会诱导植物发生生理和结构变化，从而抵御生物和非生物胁迫，但对其潜在机制和藻类决定因素的了解仍然有限。在这篇综述中，我们讨论了关于这个主题的最新研究，并强调了藻类作为植物有益微生物组的新成员在改善作物方面的生物保护和生物刺激作用。
