Banana bunchy top virus

Family   : Nanoviridae
Genus    : Babuvirus
Acronym  : BBTV

Introduction

Banana bunchy top virus (BBTV) is a plant pathogenic virus of the family Nanoviridae. The virus is so named because it leads to stunted growth that gives bananas a bunchier than normal look and eventually takes away a plants ability to produce fruit at all. Abaca bunchy top virus is one of the Synonyms.

Major Diseases

Stunted Disease

Geographical Distribution

Kerala, Maharashtra, Andhra Pradesh, Odisha, Assam, Karnataka, Tamil Nadu, Gujarat, West Bengal, Uttar Pradesh, Bihar, North Eastern States.

Particle Morphology

Virions isometric particle, not enveloped and 18-20 nm in diameter.

Transmission Method

Transmitted by a vector Pentalonia nigronervosa(Aphididae); Transmitted in a persistent manner.

Detection

Antigen Coating (DAC) -ELISA, PCR, Nucleic Acid Spot Hybridization (NASH) .

Host Range and Symptomatology ShowHide

Host	Symptoms
Musa spp (banana)	Bbtv retards plant growth, usually prevents bunch development and causes substantial economic losses.
Musa sapientum	Symptoms include malformed and undersized banana bunches, reddish streaks on the pseudostem and leaf sheaths are loosely packed and split easily. in severely affected plants, the petioles and midribs show characteristic reddish brown streaks.

References ShowHide

1	Banana bunchy top virus. [Distribution map].. 2013, Distribution Maps of Plant Diseases, October, pp Map 19 (Edition 6).
2	Banana bunchy top virus. [Distribution map].. 2001, Distribution Maps of Plant Diseases, October (Edition 5), pp Map 19.
3	Banana bunchy top virus. [Distribution map].. 1977, Distribution Maps of Plant Diseases, October (Edition 4), pp Map 19.
4	Pentalonia nigronervosa. [Distribution map].. 1968, Distribution Maps of Plant Pests, June, pp Map 242.
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12	Gaikwad, P. ; Mungekar, D. ; Verma, R. ; Datar, V. V. ; Nawale, P. B., Combined incidence of two viruses-banana streak virus (BSV) and Banana Bunchy Top virus (BBTV) in banana cv Lal velachi, belonging to AAB genotype.. 2013, Journal of Mycology and Plant Pathology, 43, 3, pp 381-382.
13	Harish, S. ; Kavino, M. ; Kumar, N. ; Saravanakumar, D. ; Soorianathasundaram, K. ; Samiyappan, R., Biohardening with plant growth promoting rhizosphere and endophytic bacteria induces systemic resistance against Banana bunchy top virus.. 2008, Applied Soil Ecology, 39, 2, pp 187-200.
14	Huang YongHong ; Mei Mei ; Zeng JiWu ; Zhou BiRong ; Wu YuanLi ; Xia Rui ; Yi GanJun, Cloning of DNA component 6 of BBTV and analysis of BBTV isolates from two groups.. 2008, Molecular Plant Breeding, 6, 4, pp 695-701.
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32	Selvarajan, R. ; Balasubramanian, V. ; Sheeba, M. M. ; Mohan, R. R. ; Mustaffa, M. M., Virus-indexing technology for production of quality banana planting material: a boon to the tissue-culture industry and banana growers in India.. 2011, 897, pp 463-469.
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34	Siddappaji, C. ; Reddy, D. N. R. N., A note on the occurrence of the aphid, Pentalonia nigronervosa form caladii Vander Goot (Aphididae-Homoptera), on cardamom (Elettaria cardamomom Salisb.).. 1972, Mysore Journal of Agricultural Sciences, 6, 2, pp 194-195.
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Sequences ShowHide