Banana streak GF virus

Family   : Caulimoviridae
Genus    : Badnavirus
Acronym  : BSGFV

Introduction

Banana streak disease of bananas and plantains worldwide is caused by a collection of Banana streak virus (BSV) species. Symptoms of streak disease vary widely and are influenced by the cultivar, virus species, and environmental conditions. The typical symptoms include narrow, discontinuous chlorotic, and/or necrotic streaks that run parallel to the veins of the leaf lamina, and pseudostem splitting. In a few cases, internal necrosis, aberrant bunch emergence, fruit peel splitting, and necrotic fruit spots are also seen. Symptoms can reappear with periods of symptomless growth, temperature being considered as a factor in disease expression. Symptoms and virus load depend strongly on temperature. Based on the complete genome sequence of different isolates, eight distinct species under BSV are now recognized. BSGFV is one of such distinct species infecting banana cultivar Gold Finger (GF) in many parts of the world including India.

Major Diseases

Streak disease

Geographical Distribution

Wherever banana is grown

Particle Morphology

Non enveloped bacilliform shaped particles

Transmission Method

By mealybug, Planococcus citri

Detection

PCR, IC-PCR, rolling circle amplification

Host Range and Symptomatology ShowHide

Host	Symptoms
Musa spp	Narrow, discontinuous chlorotic, and/or necrotic streaks that run parallel to the veins of the leaf lamina, and pseudostem splitting.

References ShowHide

1	Bhat, A.I.; Hohn, T.; Selvarajan, R., R. Badnaviruses: The Current Global Scenario. 2016, Viruses , 8, 177,