Nam Bora, Nguyen Thuong T T, Lee Hyang Burm, Park Sang Kyu, Choi Young-Joon
Department of Biological Science, College of Natural Sciences, Kunsan National University, Gunsan, South Korea.
Department of Agricultural Biological Chemistry, College of Agriculture & Life Sciences, Environmental Microbiology Lab, Chonnam National University, Gwangju, South Korea.
Mycobiology. 2022 Nov 2;50(5):326-344. doi: 10.1080/12298093.2022.2121496. eCollection 2022.
The fungal-like family (), also called "water mold," includes mostly aquatic saprophytes as well as notorious aquatic animal pathogens. Most studies on have been biased toward pathogenic species that are important to aquaculture rather than saprotrophic species, despite the latter's crucial roles in carbon cycling of freshwater ecosystems. Few attempts have been made to study the diversity and ecology of ; thus, their ecological role is not well-known. During a survey of oomycetes between 2016 and 2021, we investigated the diversity and distribution of culturable species in freshwater ecosystems of Korea. In the present study, members of were isolated and identified at species level based on their cultural, morphological, and molecular phylogenetic analyses. Furthermore, substrate preference and seasonal dynamics for each were examined. Most of the species were previously reported as animal pathogens; however, in the present study, they were often isolated from other freshwater substrates, such as plant debris, algae, water, and soil sediment. The relative abundance of was higher in the cold to cool season than that in the warm to hot season of Korea. This study enhances our understanding of the diversity and ecological attributes of in freshwater ecosystems.
卵菌纲家族（），也被称为“水霉”，包括大多数水生腐生菌以及臭名昭著的水生动物病原体。尽管腐生菌在淡水生态系统的碳循环中起着关键作用，但关于卵菌纲的大多数研究都偏向于对水产养殖重要的致病物种，而非腐生物种。很少有人尝试研究卵菌纲的多样性和生态学；因此，它们的生态作用并不为人所知。在2016年至2021年对卵菌进行的一项调查中，我们研究了韩国淡水生态系统中可培养的卵菌纲物种的多样性和分布。在本研究中，基于其培养、形态和分子系统发育分析，在物种水平上分离并鉴定了卵菌纲的成员。此外，还研究了每种卵菌纲的底物偏好和季节动态。大多数物种以前被报道为动物病原体；然而，在本研究中，它们经常从其他淡水底物中分离出来，如植物碎片、藻类、水和土壤沉积物。在韩国，卵菌纲在寒冷到凉爽季节的相对丰度高于温暖到炎热季节。这项研究增进了我们对淡水生态系统中卵菌纲多样性和生态属性的理解。
