VEGETOS: An International Journal of Plant Research & Biotechnology
(Society For Plant Research)

Research Articles

A SOCIETY FOR PLANT RESEARCH PUBLICATION


Volume: 33, Issue: 1, March 2020


Print ISSN : 0970-4078.
Online ISSN : 2229-4473.
Website:www.vegetosindia.org
Pub Email: contact@vegetosindia.org
Views: 179

Doi: 10.1007/s42535-019-00095-4
Doi Link: https://doi.org/10.1007/s42535-019-00095-4
First Page: 166
Last Page: 171
Published: 21 January, 2020

Disease responses of different tomato (Solanum lycopersicum L.) cultivars inoculated with culture filtrates of selected fungal pathogens


Abstract:

This study evaluates the responses of different tomato cultivars to disease initiation by cell-free culture filtrates (CFCFs) of selected fungal pathogens. Twenty-one days old culture filtrates of four fungal pathogens; Alternaria triglochinicola, Aureobasidium pullulans, Pythium ultimum and Sclerotium rolfsii grown on Potato Sucrose Broth were tested against four tomatoes; Roma Savanna, Tropimech, Riogrande and Roma VF. Seed germination was inhibited by filtrates of Alternaria triglochinicola and Pythium ultimum. Plant heights were lower in Roma Savanna seedlings treated with filtrates of Sclerotium rolfsii (3.27 cm), and Alternaria triglochinicola (3.30 cm); Riogrande seedlings treated with filtrates of Pythium ultimum (2.22 cm) and Alternaria triglochinicola (2.46 cm), compared to controls (3.7 cm and 2.56 cm). Roma Savanna and Riogrande cultivars showed 25% and 50% necrotic responses respectively to Alternaria triglochinicola, while Roma VF showed 50.00% response to Aureobasidium pullulans. Differences in foliar symptoms induced by CFCFs of different fungal pathogens on the studied tomato cultivars were significant (P ≤ 0.05).

Vegetos

Keywords:


Culture filtrates, Fungal pathogens, Tomato cultivars, Susceptibility, Resistance


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Acknowledgements :



We appreciate the Nigerian Tertiary Education Trust Fund (Tetfund) for providing the grant for this study, and the Management of Federal University Lafia for providing an enabling environment for the successful completion of the study.


Author Information:



T. P. Terna
Department of Botany, Federal University of Lafia, Lafia, Nigeria

G. F. Akomolafe
Department of Botany, Federal University of Lafia, Lafia, Nigeria
gfakomolafe@yahoo.com

A. Ubhenin
Department of Biochemistry, Federal University of Lafia, Lafia, Nigeria

J. Abok
Department of Chemistry, Federal University of Lafia, Lafia, Nigeria




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