RRC ID 88368
著者 Amini S, Safitri RR, Aimi T, Shimomura N.
タイトル Cytological and morphological responses of the ectomycorrhizal fungus Rhizopogon roseolus to saline conditions.
ジャーナル Mycologia
Abstract Ectomycorrhizal (ECM) fungi are widely recognized for their ability to enhance plant survival and growth under saline conditions. Although extensive research has focused on the development of salt-tolerant ECM fungal strains, the cytological and morphological responses of ECM fungi to salt stress remain unclear. Moreover, the cellular mechanisms underlying fungal adaptation to high-salinity conditions remain poorly understood. This study investigated salinity tolerance and cellular adaptations of three R. roseolus strains subjected to increasing artificial seawater concentrations. The mycelia were grown on modified Melin-Norkrans (MMN) medium containing 0%, 50%, or 100% artificial seawater then observed under a phase-contrast light microscope. The hybrid strain TUFC102052 exhibited the highest tolerance to 50% artificial seawater, whereas significant growth inhibition was observed in both the wild-type strain TUFC10010 and the salt-sensitive strain TUFC102053 at higher salinity levels. Cellular alterations including subterminal cell size reduction and vacuole fragmentation were observed, indicating potential adaptive strategies for survival under saline conditions. These findings provide new insights into the morphological adaptations of the ECM fungus R. roseolus to salt stress.
巻・号 118(2)
ページ 260-269
公開日 2026-1-1
DOI 10.1080/00275514.2025.2572274
PMID 41284348
MeSH Adaptation, Physiological Basidiomycota* / cytology Basidiomycota* / growth & development Basidiomycota* / physiology Culture Media / chemistry Mycelium / cytology Mycelium / growth & development Mycorrhizae* / cytology Mycorrhizae* / drug effects Mycorrhizae* / growth & development Mycorrhizae* / physiology Salinity Salt Tolerance Seawater Sodium Chloride*
IF 2.149
リソース情報
きのこ TUFC 10010 TUFC 102052 TUFC 102053