Heavy metals uptake and disease susceptibility of maize
212 / 98
Authors
-
R. CHAKRABARTI and R.P. PURKAYASTHA
Plant Pathology Laboratory, Department of Botany, University of Calcutta, Calcutta 700 019
Keywords:
Maize, Exserohilum turcicum, heavy metals, leaf blight, Zn-uptakeAbstract
Maize (cv. DHM 103) plants showed preferential uptake of Zn2+ when grown in sand supplemented with nutrient solution containing different heavy metals. An extraneous supply of Zn2+ (as sulphate) to maize plants induced susceptibility to leaf blightcaused by Exserohilum turcicum [Setosphaeria turcica], but addition of Pb2+ with Zn2+ reduced disease considerably. Zinc, lead and cadmium significantly inhibited mycelial growth of S. turcica at both 5 and 10 鎔/ml. Maximum and minimum inhibition of growth was due to Cd2+ and Zn2+, respectively. The combination of Zn2+ and Pb2+ reduced Pb2+ toxicity, while Pb2+ and Cd2+ together slightly reduced toxicity of Cd2+ which was evident from the better growth of the pathogen in vitro.
Downloads
Issue
Section
License
For Authors
As soon as an article is accepted for publication, authors are requested to assign copyright of the article (or to grant exclusive publication and dissemination rights) to the publisher (Indian Phytopathlogical Society). This will ensure the widest possible protection and dissemination of information.
For Readers
While the advice and information in this journal is believed to be true and accurate at the date of its publication, the authors, the editors, nor the publisher can accept any legal responsibility for any errors or omissions that may have been made. The publisher makes no warranty, express or implied, with respect to the material contained herein.
All articles published in this journal are protected by copyright, which covers the exclusive rights to reproduce and distribute the article (e.g., as offprints), as well as all translation rights. No material published in this journal may be reproduced photographically or stored on microfilm, in electronic data bases, on video disks, etc., without first obtaining written permission from the publisher. The use of general descriptive names, trade names, trademarks, etc. in this publication, even if not specifically identified, implies that these names are protected by the relevant laws and regulations.