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Purification and properties of antiviral proteins from the leaves of <i><span style="font-size:14.0pt;font-family:"Times New Roman";mso-fareast-font-family: "Times New Roman";mso-ansi-language:EN-US;mso-fareast-language:EN-US; mso-bidi-language:AR-SA">Bougainvillea xbuttiana</span></i>

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Title Purification and properties of antiviral proteins from the leaves of Bougainvillea xbuttiana
 
Creator Narwal, Sneh
Balasubrahmanyam, A
Lodha, M L
Kapoor, H C
 
Description 342-347
A non-phytotoxic, resistance inducing, proteinaceous
antiviral principle was purified by ammonium sulphate fractionation, ion
exchange chromatography and gel filtration from the leaves of Bougainvillea
xbuttiana. It imparted

resistance against tobacco mosaic virus (TMV) and
sunnhemp rosette virus (SRV) in their respective test hosts viz. Nicotiana gilutinosa,
N. tabacum var.
Samsun NN, and Cyamopsis tetragonoloba, respectively. The purified
principle eluted as a single peak upon gel filtration, but exhibited two
polypeptides on SDS-PAGE with Mr 28,000
and 24,000. The two

polypeptides were found to be highly basic, rich in
lysine with pI around
10.0 and 10.5, respectively. Since this principle effected local lesion
inhibition in both treated and untreated top leaves of test host, it might be
acting in the initial stages of virus infection as a systemic inducer.
 
Date 2012-12-25T18:40:18Z
2012-12-25T18:40:18Z
2001-10
 
Type Article
 
Identifier 0975-0959 (Online); 0301-1208 (Print)
http://hdl.handle.net/123456789/15314
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJBB Vol.38(5) [October 2001]