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NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR) >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Biotechnology (IJBT) >
IJBT Vol.02 [2003] >
IJBT Vol.02(4) [October 2003] >
| Title: | Plant Defence Activators Inducing Systemic Resistance in Zingiber officinale Rose. against Pythium aphanidermatum (Edson) Fitz. |
| Authors: | Karmakar, N C
Ghosh, Rajyasri
Purkayastha, R P |
| Keywords: | Ginger
Pythium aphanidermatum
Rhizome rot
Defence activators
Systemic resistance |
| Issue Date: | Oct-2003 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Selected
plant defence activators were employed to induce systemic resistance in a
susceptible cultivar of ginger
against
Pythium aphanidermatum (Edson) Fitz., a severe rhizome rot causing
pathogen. Among the 6 cultivars of
ginger
tested, Varada was most susceptible, followed by Suprabha and Maran. Prior to
sowing, soaking of rhizome
seeds
for 1 hr in 5 mM salicylic acid (SA), DL- -aminobutyric acid
(BABA) or 2,1,3-benzothiadiazole (BTH),
significantly
reduced the disease. Systemic protection against disease was evident even after
8 weeks of treatment.
Analysis
of leaf proteins of non-inoculated, inoculated and activator-treated both
non-inoculated and inoculated
plants
(cv. Suprabha) by SDS-PAGE (Sodium dodecyl sulphate-polyacrylamide gel
electrophoresis) and Image
Master
VDS-ID gel analysis version 3.0 showed 18 protein bands including 3-5 defence
related proteins having
molecular
masses 67, 56, 32, 20 and 14 kDa. These defence proteins increased in
activator-treated inoculated plants
and
enhanced the resistance against P. aphanidermatum. In vitro growth
response of P. aphanidermatum to different
conc. of SA,BABAand BTH was tested. SAand BABA,respectively
were the most and least inhibitory to the fungus. |
| Page(s): | 591-595 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-0967 (Online); 0972-5849 (Print) |
| Source: | IJBT Vol.02(4) [October 2003]
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