First report of Phytophthora tropicalis causing black pod of Cacao (Theobroma cacao) in India.

Autor: Madhu, G. S., Rani, A. T., Muralidhara, B. M., Rajendiran, S., Venkataravanappa, V., Sriram, S.
Zdroj: Australasian Plant Pathology; Nov2023, Vol. 52 Issue 6, p591-593, 3p
Abstrakt: Cacao (Theobroma cacao) is a tropical plant that is grown throughout India. Cacao pods exhibiting chocolate brown patched symptoms were collected. The organism was isolated and cultured on V8 Agar from the diseased samples. The pathogenicity was proved on Cacao pods by inoculating mycelium of the organism and Koch's postulates were proved by re-isolating the pathogen. The pathogen was identified as Phytophthora tropicalis based on cultural and morphological characters, followed by molecular investigations (ITS and COX1). This is the first report of Phytophthora tropicalis causing black pod of Cacao in India. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index