Evaluation of Tecoma stans and Callistemon viminalis Extracts against Potato Soft Rot Bacteria In vitro

ISSN: 0973-7510

E-ISSN: 2581-690X

Evaluation of Tecoma stans and Callistemon viminalis Extracts against Potato Soft Rot Bacteria In vitro

Nader A. Ashmawy¹, Said I. Behiry², Hayssam M. Ali^3,4 and Mohamed Z.M. Salem⁵

¹Plant Pathology Department, Faculty of Agriculture (El-Shatby), Alexandria University, Alexandria, Egypt.

²Agricultural Botany Department, Faculty of Agriculture (Saba Basha), Alexandria University.

³Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.

⁴Timber Trees Research Department, Sabahia Horticulture Research Station, Horticulture Research Institute, Agriculture Research Center, Alexandria, Egypt.

⁵Forestry and Wood Technology Department, Faculty of Agriculture (EL-Shatby),
Alexandria University, Egypt.

J Pure Appl Microbiol. 2014;8(Spl. Edn. 2):667-673

Received: 03/09/2014 | Accepted: 28/10/2014 | Published: 30/11/2014

Abstract

In the present study, the effect of leaves and branches extracts from Callistemon viminalis and Tecoma stans against the growth of some phytopathogenic potato soft rot bacteria namely; Dickeya chrysanthemi (DSM 4610), Pectobacterium carotovorum subsp. carotovorum (ipp038), Pectobacterium wasabiae (ipp041), Pectobacterium atrosepticum (1007) and Dickeya dianthicola (IPO 2114) were evaluated. T. stans leaves and branches extracts were masterly effective against the tested bacterial strains rather than the extracted ones from C. viminalis . Both of methanolic crude extract (MCE) and alkaloids (chloroform fraction) found in T. stans gave a good profiles of antibacterial activity. On the other hand, the most extracts of C. viminalis branches and other aqueous fraction extracts from C. viminalis and T. stans did not exhibit any activity against the growth of studied bacterial strains. Our pointed results could be considered T. stans extracts as bioagents against potato soft rot bacteria.

Keywords

Extracts, Tecoma stans, Callistemon viminalis, phytopathogenic, potato soft rot bacteria

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