Loukrakpam Bina chanu,
Indira Yumnam,
Naorem Mohilal,
- Faculty Department of Zoology (Life Sciences), Parasitology Section, Manipur University, Canchipur Manipur India
- Lecturer Department of Zoology, NG Mani College, Chairenthong Manipur India
- Professor Department of Zoology (Life Science), Parasitology Section, Manipur University, Canchipur Manipur India
Abstract
The protozoa septate gregarines infect the midgut of Aphis fabae and cause severe infection to the intestinal tissues of the host. During a biodiversity survey on the septate gregarines parasite by the Aphud groups, we collected specimens of Aphis fabae from a bean farm in Imphal, Manipur, India. We dissected the host and isolated some protozoan parasites from the host’s midgut. We encountered a new species of septate gregarine, Didymophyses jayaraman sp.nov. Its growth in pairs characterizes the protozoa. Its body parts have epimerites in the anterior body, protomerite in the middle body, and a large deutomerite in the posterior body. The protozoa have a total length of 142.8μm in length. Its trophozoite stage is vase-like; epimerite is papilla-like and becomes disc-like, with prominent ridges radiating from the whole mouth to the top of the protomerite. The protomerite is conical, and the deutomerite is more or less spherical, with a nucleus at the posterior portion. The shape of the sporadin is straight with hemispherical or egg-shaped protomerite, broader than long and ovoidal in shape. Protomerite is ellipsoidal to rhomboidal in shape. Gameyocytes are round, and spores are spherical. The species differs from closely related species Didymophyses rigidus in the shapes of protomerites, deutomerites, gametocytes, and spores. It also differs from Didymophyses berhamporensis in the shapes of trophozoites, epimerites, protomerites, deutomerites, sporadins, gametocytes, and spores. The prevalence of the infection was 25 out of 60 (33.3 %). In the present article, we describe the distinctive characteristics of Didymophyes bayaramae sp.nov and its taxonomic position. We are providing photomicrographs of the parasite at different stages.
Keywords: Septate gregarine, Aphis fabae, Didymophyes bayaramae .sp.nov. and Manipur
[This article belongs to International Journal of Insects(iji)]
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| Volume | 01 |
| Issue | 01 |
| Received | June 7, 2024 |
| Accepted | July 1, 2024 |
| Published | July 3, 2024 |