Studies on Phytoplasma Diseases of Tree Species (Record no. 70770)

MARC details
000 -LEADER
fixed length control field 02772nam a2200217 4500
003 - CONTROL NUMBER IDENTIFIER
control field OSt
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20250130152821.0
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fixed length control field 250130b |||||||| |||| 00| 0 eng d
040 ## - CATALOGING SOURCE
Transcribing agency UAS Dharwad
041 ## - LANGUAGE CODE
Language code English
082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER
Classification number 630
Author Label PAT
100 ## - MAIN ENTRY--PERSONAL NAME
Name of Author Patil Aishwarya Kailas
245 ## - TITLE STATEMENT
Title Studies on Phytoplasma Diseases of Tree Species
250 ## - EDITION STATEMENT
Edition Statement M.Sc. (Forest)
260 ## - PUBLICATION, DISTRIBUTION, ETC.
Place of Publisher Dharwad
Name of Publisher University of Agricultural Sciences
Publication Year 2024
300 ## - PHYSICAL DESCRIPTION
Book Pages 76
Book Size 32 Cms
520 ## - SUMMARY, ETC.
Abstract. ABSTRACT<br/><br/> Phytoplasmas are a diverse group of cell wall-less, pleomorphic fastidious prokaryotes linked to diseases in over a thousand species globally. A systematic survey was conducted across eight specific locations within Canara circle under the Western-Ghat part of Karnataka in collaboration with the Karnataka Forest Department. The witches’ broom affected Trichilia connaroides showed symptoms like chlorotic leaves, excessive shoot proliferation, reduced leaf size and bushy appearance of branches in two locations [Bhairumbe (Lat- 14.70296, Long- 74.82148) and Potoli cross (Lat- 15.18635, Lon- 74.55529). Rosette infected Ficus amplecissima showed apical rosette formation, small leaves, severe internodal shortening, pendulous twigs formations with upright growth in one location [Bhagwathi (Lat- 15.1541, Long- 74.7557)]. Ziziphus oenoplia exhibited little leaf symptoms which includes stunted branches, shortened internodes, narrow leaves and mild chlorosis in two locations [Bommanali (Lat- 14.68545, Long- 74.8284) and Bhagwathi (Lat- 15.16996, Long- 74.72024)]. While witches’ broom affected Xylia xylocarpa showed crowded branches, shortened internodes and reduced leaf size in three locations [Ganeshgudi (Lat- 14.98317, Long- 74.57772), (Lat-14.98302, Long-74.5767), (Lat- 14.98302, Long-74.5767)]. <br/>In disease calendar of Trichilia connaroides, disease progression was observed slow and influenced by climatic and seasonal factors. Electron microscopy of ultrathin sections from infected T. connaroides, Z. oenoplia, Toona ciliata and Dendrocalamus strictus revealed pleomorphic bodies within the phloem tissues. PCR using phytoplasma specific primers (P1/P7 and R162n F/R162n R) consistently amplified 1.8 kb and 1.2 kb fragments from symptomatic T. connaroides, T. ciliata, D. strictus and Z. oenoplia and 537 bp DNA fragments from F. amplecissima. Phylogenetic analysis revealed that the phytoplasma strain causing witches’ broom disease in T. ciliata and T. connaroides belongs to ‘Ca. P. asteris’ (16Sr I group), while Z. oenoplia is closely related to ‘Ca. Phytoplasma balanitae’ (16SrV) group. <br/>
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Subject Forest Biology and Tree Improvement
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2nd Author, 3rd Author Suryanarayana V.
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha Item type THESIS
Edition M.Sc. (Forest)
Classification part 630
Call number prefix PAT
Suppress in OPAC No
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-- 630_000000000000000
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-- 70770
-- 70770
Holdings
Withdrawn status Lost status Source of classification or shelving scheme Damaged status Not for loan Home library Current library Date acquired Total checkouts Full call number Barcode Date last seen Copy number Price effective from Koha item type
    Dewey Decimal Classification     University of Agricultural Sciences, Dharwad University of Agricultural Sciences, Dharwad 24/10/2024   630/PAT T14003 30/01/2025 1 30/01/2025 THESIS