Pseudoplasmodium

Japanese: pseudoplasmodium

…The cells are eukaryotic and heterotrophic, but they also have a single nucleus, amoeboid vegetative cells that ingest solid matter and digest it internally. The amoebae multiply by division, and when conditions are right, many amoebae gather together and form a pseudoplasmodium without fusing, and the whole body behaves as if it were a single body, appearing as a multicellular organism. Eventually, a fruiting body called a sorocarp is formed in the pseudoplasmodium. …

From [Fungi]

...The following classification system has been established based on the characteristics of these organs. (1) Mycomycota Also called slime molds, their body structure is amoeboid, and they form pseudoplasmodiums or plasmodiums. (2) Eumycota (fungi) Their body structure is mycelial, and they may be unicellular. ...

From [Transformation]

…In a group of slime molds generally known as cellular slime molds, a large number of amoeba-like cells gather together and behave in a coordinated manner as if the whole were a single organism, but fusion between the cells does not occur. This large number of cell aggregates are called pseudoplasmodium. [Takashi Kitagawa]. …

*Some of the terminology explanations that mention "pseudoplasmodium" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…細胞は真核細胞で，従属栄養を営むが，単核のアメーバ状の栄養細胞があり，これが固形物を摂取し，体内消化する。アメーバは分裂して増え，条件が適すると多数のアメーバが集合し，融合することなく偽変形体pseudoplasmodiumとなり，全体があたかも一つの体のように行動し，多細胞生物のように見える。やがて，その偽変形体にソロカープsorocarpという子実体が形成される。…