Evaluation of native fluorescent pseudomonads against wilt pathogens of major vegetables in Meghalaya / (Record no. 4078)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02990nam a22002297a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | OSt |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20220125121026.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 130803b xxu||||| |||| 00| 0 eng d |
| 040 ## - CATALOGING SOURCE | |
| Transcribing agency | CPGS |
| 082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 632.96 |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Kongbrailatpam Jina Devi |
| 9 (RLIN) | 919 |
| 245 ## - TITLE STATEMENT | |
| Title | Evaluation of native fluorescent pseudomonads against wilt pathogens of major vegetables in Meghalaya / |
| Statement of responsibility, etc | by Kongbrailatpam Jina Devi |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Place of publication, distribution, etc | Umiam ; |
| Name of publisher, distributor, etc | CPGS, CAU |
| Date of publication, distribution, etc | c2012. |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | [26], 82p. : |
| Other physical details | ill., some col.; |
| 440 ## - SERIES STATEMENT/ADDED ENTRY--TITLE | |
| Title | [Plant Pathology, School of Crop Protection] |
| 9 (RLIN) | 920 |
| 501 ## - WITH NOTE | |
| With note | Abstract:<br/>Fluorescent pseudomonads are an ecologically important group of rhizobacteria that are well accepted as biocontrol agent and plant growth promoter. Exploitation of such rhizobacteria for management of plant diseases reduces the hazardous effects of chemical to the environment as well as to human health. The present investigation was carried out with an aim to characterize the fluorescent pseudomonads predominant in mid and up hills of Meghalaya and to evaluate the antagonistic potentiality of native fluorescent pseudomonads against wilt pathogens of major vegetables in Meghalaya. A total of 72 rhizospheric soil samples were collected from different crop rhizospheres viz., maize, rice, banana, pea and pigeon pea from Ri-Bhoi (mid-hills) and East Khasi Hills (mid and up-hills) districts of Meghalaya. Fifty fluorescent pseudomonad isolates obtained from 72 collected soil samples were tentatively grouped into 4 categories i.e. Pseudomonas fluorescens bv. I and II; P. putida bv. A and B based on their cultural, morphological and biochemical properties. Isolates were further screened for production of HCN and presence of 2 biosynthetic genes for antibiotics viz., DAPG and pyrrolnitrin by using gene specific primer pairs Phl2a-Phl2b and Prncf-Prncr respectively. HCN production test was found positive for 12 isolates, whereas two and six numbers of isolates were recorded for presence of DAPG and pyrrolnitrin biosynthetic genes respectively. Antagonistic potential of 17 isolates positive for HCN and antibiotic production was tested against major wilt pathogens i.e. Fusarium oxysporum f.sp. pisi (pea) and Ralstonia solanacearum ( brinjal and capsicum) under in vitro conditions. The radial growth of F. oxysporum f.sp. pisi was found to inhibit most (3.23 cm) by isolate MRN 18, whereas isolate PC (17.33 mm and 15.67 mm) followed by USR 9.2 (16.00 mm and 15.00 mm) was found to have the highest inhibition zone against both R. solanacearum isolates from brinjal and capsicum. These two isolates must be further evaluated under in vivo condition for development of ecologically sustainable biocontrol strategy for management of wilt pathogens of vegetables.<br/> |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Includes bibliographical references. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Vegetable |
| Form subdivision | Wilt pathogens |
| General subdivision | Biocontrol |
| 9 (RLIN) | 921 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Fluorescent pseudomonads |
| 9 (RLIN) | 922 |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Majumder, Dipali |
| Relator term | Major Advisor |
| 9 (RLIN) | 923 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Koha item type | MSc Thesis |
| Withdrawn status | Lost status | Source of classification or shelving scheme | Damaged status | Not for loan | Collection code | Home library | Current library | Date acquired | Total Checkouts | Full call number | Barcode | Date last seen | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dewey Decimal Classification | School of Crop Protection | CPGS | CPGS | 13/02/2013 | 632.96 KON | TH110 | 24/01/2020 | 03/08/2013 | MSc Thesis |