First time report of gall formations and plant part deformations in Acmella oleracea caused by Thecaphora spilanthes in India
Arunkumar Phurailatpam, Taibanganbi Chanu, Anju Choudhury, Kalkame Ch. Momin, N Surmina Devi, Priyanka Irungbam and T Shantibala
Acmella oleracea (Akarkara or Tootache plant) (Family: Asteraceae) is a medicinal herbaceous plant that is widely found in the North East Region (NER) of India. It has essential medicinal properties and measured as chief ingredient of the Adi tribe’s local cuisine. Gall formation of A. oleracea is an emerging threat to local medical plant grower. A survey was conducted in East Siang district, Arunachal Pradesh and 62-76% of disease incidence of A. oleracea gall formation was recorded. In the initial stage, light green elongated gall formation on stem and floral were observed and later the gall turns brownish and ruptured the stem thereby break off the food supply to the upper part of the infected plants and killing the upper portion of the plant. The infection causes severe losses and reduces plant quality. The microscopic study revealed that the spores are compact spore balls of light to dark brown in colour. With the study of characteristic symptoms and nature of spores, it was confirm that Akarkara gall formation is a smut disease caused by Thecaphora sp under the order “Ustilaginales”. With the identification report from Herbarium code no. 2022-23/PP/HCIO/03, dated 24.01.2023, IARI, New Delhi Code No, it was verify that the causal organism is Thecaphora spilanthes Freire & Vànky causing smut or gall of A. oleracea. The present finding represents the first report of A. oleracea gall formation or smut caused by Thecaphora spilanthes Freire & Vànky in India.
How to cite this article:
Arunkumar Phurailatpam, Taibanganbi Chanu, Anju Choudhury, Kalkame Ch. Momin, N Surmina Devi, Priyanka Irungbam, T Shantibala. First time report of gall formations and plant part deformations in Acmella oleracea caused by Thecaphora spilanthes in India. Pharma Innovation 2023;12(4):27-29.