Bougainvillea spectabilis chlorotic vein-banding virus

Family   : Caulimoviridae
Genus    : Badnavirus 
Acronym  : BsCVBV

Introduction

Bougainvillea chlorotic vein-banding disease caused by Bougainvillea spectabilis chlorotic vein-banding virus (BsCVBV) was first reported in Brazil in 2001 and subsequently from Taiwan and India. The diseased bougainvillea plants developed symptoms such as mottling, chlorosis, vein-banding, leaf distortion, and stunting. The virus is transmitted through bud grafting. It was characterized by electron microscopy, which showed typical bacilliform particles, and by sequencing of a portion of ORF 3 revealing similarities with known badnaviruses. Two distinct badnaviruses infecting B. spectabilis in two different locations of India and with distinct symptoms (severe yellow mosaic and chlorotic vein banding, rsp.) could be distinguished by sequencing of the RT/RNaseH region.

Major Diseases

Chlorotic vein-banding disease

Geographical Distribution

Andhra Pradesh, Delhi

Particle Morphology

Non enveloped bacilliform shaped particles of 30 x 130-150 nm

Transmission Method

Primarily through vegetative means. Vector not reported so far.

Detection

PCR

Host Range and Symptomatology ShowHide

Host	Symptoms
Bougainvillea spectabilis	Mottling, chlorosis, vein-banding, leaf distortion, and stunting.

References ShowHide

1	Baranwal, V.K.; Meenakshi, A.; Singh, J., First report of two distinct badnaviruses associated with Bougainvillea spectabilis in India. . 2010, J. Gen. Plant Pathol, 76, pp 236-239.

Sequences ShowHide