摘要:Putra IP, Aimi, T, Shimomura N2022Short Communication: Thromboplerous hyphae of the ectomycorrhizal mushroom Rhizopogon roseolus with and without a host treeNusantara Bioscience 14: 47-52Thromboplerous hyphae are modified hyphae found in the basidiocarp of many agaricsHowever, data on their development and function as well as on their formation in pure cultures of ectomycorrhizal mushrooms are scarceThe aim of the present study was to characterize the cytological descriptions of thromboplerous hyphae from pure cultures of Rhizopogon roseolus (Corda) Th.MFrwith or without the host pine tree Pinus thunbergii ParlThromboplerous hyphae formed on the mycelium and mycelial cords in all experimental settingsResults revealed that thromboplerous hyphae were extremely melanized, smooth, cracked on the surface, and swollen at both hyphal terminiThromboplerous hyphae produced with a host were mainly unbranched in shape in contrast to those formed without a host that possessed additional twisted, semi-twisted, and branched formsSome thromboplerous hyphae that grew without a host had large diameters, and few showed notable septa and clamp connectionsThe present study also provides evidence of the initial development of thromboplerous hyphae via vegetative hyphae and tubular hyphaeThis study contributes to understanding the cytology of thromboplerous hyphae grown with and without a host treeFurther investigations on the specific functions of thromboplerous hyphae are needed to deepen the current knowledge of fungal cytology.