TY - JOUR
T1 - Dimorphic Mechanism on cAMP Mediated Signal Pathway in Mucor circinelloides
AU - Moriwaki-Takano, Maki
AU - Iwakura, Ryo
AU - Hoshino, Kazuhiro
N1 - Publisher Copyright:
© 2020, Springer Science+Business Media, LLC, part of Springer Nature.
PY - 2021/5
Y1 - 2021/5
N2 - Mucor circinelloides is a dimorphic fungus that is a non-pathogen strain belonging to zygomycetes. In this research, a part of hypothetical mechanism on yeast-like cell induction of M. circinelloides in CO2 atmosphere was reported from the viewpoint of gene expression. To explain the relation between the change and the expressions of some genes involved in morphological changes of the strain, these were analyzed on the filamentous and yeast cell by real-time qPCR. The compared genes were Nce103, Ras3, Cyr1, Pde, and Efg1 encoding carbonic anhydrase, GTPase, adenylate cyclase, phosphodiesterase, and elongation factor G1, respectively. In anaerobic grown yeast cell with 70%N2 + 30%CO2, the Nce103 and Ras3 gene expressions decreased to 24 h whereas that of the filamentous cell increased. However, a downstream gene of Cyr1 expression level in the yeast cell was higher than that of filamentous cell. A lower level of Pde in the yeast cell than that of the filamentous cell indicated intracellular cAMP accumulation. The actual cAMP in the yeast cell remained whereas that of the filamentous cell decreased with cultivation. The Efg1 expression level controlling hyphal elongation was suppressed in the yeast cell. The intracellular cAMP accumulation and Efg1 expression regulate hyphal elongation or yeast forming.
AB - Mucor circinelloides is a dimorphic fungus that is a non-pathogen strain belonging to zygomycetes. In this research, a part of hypothetical mechanism on yeast-like cell induction of M. circinelloides in CO2 atmosphere was reported from the viewpoint of gene expression. To explain the relation between the change and the expressions of some genes involved in morphological changes of the strain, these were analyzed on the filamentous and yeast cell by real-time qPCR. The compared genes were Nce103, Ras3, Cyr1, Pde, and Efg1 encoding carbonic anhydrase, GTPase, adenylate cyclase, phosphodiesterase, and elongation factor G1, respectively. In anaerobic grown yeast cell with 70%N2 + 30%CO2, the Nce103 and Ras3 gene expressions decreased to 24 h whereas that of the filamentous cell increased. However, a downstream gene of Cyr1 expression level in the yeast cell was higher than that of filamentous cell. A lower level of Pde in the yeast cell than that of the filamentous cell indicated intracellular cAMP accumulation. The actual cAMP in the yeast cell remained whereas that of the filamentous cell decreased with cultivation. The Efg1 expression level controlling hyphal elongation was suppressed in the yeast cell. The intracellular cAMP accumulation and Efg1 expression regulate hyphal elongation or yeast forming.
KW - CO
KW - Elongation factor G1
KW - Fungal dimorphism
KW - Morphology
KW - Mucor circinelloides
KW - cAMP
UR - http://www.scopus.com/inward/record.url?scp=85085555163&partnerID=8YFLogxK
U2 - 10.1007/s12010-020-03342-6
DO - 10.1007/s12010-020-03342-6
M3 - 学術論文
C2 - 32424738
AN - SCOPUS:85085555163
SN - 0273-2289
VL - 193
SP - 1252
EP - 1265
JO - Applied Biochemistry and Biotechnology
JF - Applied Biochemistry and Biotechnology
IS - 5
ER -