Isolation, Characterization, and Identification of Biological Control Agent for Potato Soft Rot in Bangladesh
نویسندگان
چکیده
A total of 91 isolates of probable antagonistic bacteria of potato soft rot bacterium Erwinia carotovora subsp. carotovora (Ecc) were extracted from rhizospheres and endophytes of various crop plants, different soil varieties, and atmospheres in the potato farming areas of Bangladesh. Antibacterial activity of the isolated probable antagonistic bacteria was tested in vitro against the previously identified most common and most virulent soft rot causing bacterial strain Ecc P-138. Only two isolates E-45 and E-65 significantly inhibited the in vitro growth of Ecc P-138. Physiological, biochemical, and carbon source utilization tests identified isolate E-65 as a member of the genus Bacillus and the isolate E-45 as Lactobacillus sp. The stronger antagonistic activity against Ecc P-138 was found in E-65 in vitro screening and storage potatoes. E-65 reduced the soft rot infection to 22-week storage potatoes of different varieties by 32.5-62.5% in model experiment, demonstrating its strong potential to be used as an effective biological control agent for the major pectolytic bacteria Ecc. The highest (62.5%) antagonistic effect of E-65 was observed in the Granola and the lowest (32.7%) of that was found in the Cardinal varieties of the Bangladeshi potatoes. The findings suggest that isolate E-65 could be exploited as a biocontrol agent for potato tubers.
منابع مشابه
The effect of copper nanoparticles on soft rot agent of potato, carrot and onion
Panahi Z, Khakvar R, Aliasgharzad N, Zehtab S, Farshbaf PourAbad R (2023) The effect of copper nanoparticles on soft rot agent of potato, carrot and onion. Plant Pathology Science, 12(1):1-11. Doi: 10.2982/PPS.12.1.1 Abstract Introduction: Bacterial soft rot caused by Pectobacterium species is one of the important and common diseases in Potatoes and vegetables. Disinfection of tubers or...
متن کاملDetermine of isolation distances for seed potato production in Ardabil region
This study was performed in order to determine the distance of isolation for the seed potato production from ware potato in three regions of Ardabil, Namin and Nir. The experiment was carried out in a randomized complete block design (RCBD) with five distances (100, 200, 300, 400 and 500 meters from ware potato) and three replications with Super Elite (SE) class of Agria potato cultivar from wa...
متن کاملAureobasidium pullulans (De Bary) G. Arnaud, a Biological Control against Soft Rot Disease in Potato Caused by Pectobacterium carotovorum
In Morocco, Pectobacterium carotovorum is well known as causal agents of potato soft rot. Actually, there are no efficient bactericides used to protect potato against Pectobacterium spp. biological control using antagonistic could be an interesting approach to manage this disease. Thus, a collection of thirty antagonists isolated from compost, rhizospheres and endophytes of various crop plants ...
متن کاملDetermine of isolation distances for seed potato production in Ardabil region
This study was performed in order to determine the distance of isolation for the seed potato production from ware potato in three regions of Ardabil, Namin and Nir. The experiment was carried out in a randomized complete block design (RCBD) with five distances (100, 200, 300, 400 and 500 meters from ware potato) and three replications with Super Elite (SE) class of Agria potato cultivar from wa...
متن کاملIn vitro anti-fungal activity of watercress (Nasturtium officinale) extract against Fusarium solani, the causal agent of potato dry rot
Background & Aim: The aim of this study was to assess the antifungal effect of the watercress extract on the growth of Fusarium solani, the causal agent of potato dry rot. Experimental: This research was done in a completely randomized design with three concentrations and four replicates on potato dextrose agar (PDA) culture medium. Results: Results of this study indicated that all ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
دوره 2012 شماره
صفحات -
تاریخ انتشار 2012