scholarly journals Antibacterial Effect of Potassium Tetraborate Tetrahydrate against Soft Rot Disease Agent Pectobacterium carotovorum in Tomato

2017 ◽  
Vol 8 ◽  
Author(s):  
Firas A. Ahmed ◽  
Mohammad Arif ◽  
Anne M. Alvarez
2017 ◽  
Vol 52 (2) ◽  
pp. 135-140 ◽  
Author(s):  
MM Rahman ◽  
AA Khan ◽  
IH Mian ◽  
AM Akanda ◽  
MZ Alam

Bactericidal effect was investigated by chemicals against potato soft rot bacteria in vitro and in storage. The chemicals were acetic acid, boric acid, bleaching powder, lactic acid, calcium hydroxide, calcium chloride, potassium chloride and sodium hypo-chloride. Among eight  chemicals only three chemicals viz. acetic acid, boric acid and bleaching powder showed bactericidal activity against potato soft rot bacteria  Pectobacterium carotovorum subsp. carotovorum (E. carotovora subsp. carotovora) P-138 in vitro. Based on the results of in vitro experiment three chemicals, acetic acid, boric acid and bleaching powder were used to control soft rot disease of potato in storage. Fresh potato tubers were dipped in 0.2% solution/suspensions of acetic acid, boric acid and bleaching powder for 30 min. Then soft rot bacteria Pectobacterium carotovorum subsp. carotovorum P-138 was inoculated on potato. Finally potatoes were stored for 22 weeks in net bags in sterilized condition. All the three chemicals significantly decreased the infection rate, loss in weight and increased percentage of disease reduction (PDR) of potato. Boric acid was the most effective in controlling the soft rot disease of potato in storage followed by acetic acid and bleaching powder. So these chemicals may be used for seed purpose storage of potato tubers for year round storage at farmer’s level.Bangladesh J. Sci. Ind. Res. 52(2), 135-140, 2017


2007 ◽  
Vol 120 (3) ◽  
pp. 305-310 ◽  
Author(s):  
Xiu-Fang Hu ◽  
Fei-Xiang Ying ◽  
Yu-Bo He ◽  
Yuan-Yuan Gao ◽  
Hai-Min Chen ◽  
...  

Molecules ◽  
2019 ◽  
Vol 24 (16) ◽  
pp. 2910 ◽  
Author(s):  
Yedidia ◽  
Schultz ◽  
Golan ◽  
Gottlieb ◽  
Kerem

Ornithogalum is an ornamental flowering species that grows from a bulb and is highly susceptible to soft-rot disease caused by Pectobacterium carotovorum (Pc). Interspecific hybridization between O. thyrsoides and O. dubium yielded hybrids with enhanced resistance to that pathogen. The hybrids displayed distinct phenolic-compound profiles with several peaks that were specifically heightened following Pc infection. Three of these compounds were isolated and identified as novel kaempferol O-tri-glycosides. The structures of these compounds were elucidated using reversed phase high-performance liquid chromatography (RP-LC), RP-LC coupled to high-resolution mass spectrometry (RP-LC-MS), and nuclear magnetic resonance (NMR) (1D 1H and 13C, DEPT, HMQC, HMBC, COSY, and NOE), in order to achieve pure and defined compounds data. The new compounds were finally identified as kaempferol 3-O-[4-O-α-l-(3-O-acetic)-rhamnopyranosyl-6-O-β-d-xylopyranosyl]-β-d-glucopyranoside, kaempferol 3-O-[4-O-α-l-(2-O-acetic)-rhamnopyranosyl-6-O-β-d-xylopyranosyl]-β-d-glucopyranoside and kaempferol 3-O-[4-O-α-l-(2,3-O-diacetic)-rhamnopyranosyl-6-O-β-d-xylopyranosyl]-β-d-glucopyranoside.


2015 ◽  
Vol 143 (4) ◽  
pp. 801-811 ◽  
Author(s):  
Hind Faquihi ◽  
Meriam Terta ◽  
Mohamed Amdan ◽  
El Hassan Achbani ◽  
M. Mustapha Ennaji ◽  
...  

2011 ◽  
Vol 77 (5) ◽  
pp. 292-294 ◽  
Author(s):  
Eisa Nazerian ◽  
Kamaruzaman Sijam ◽  
Zainal Abidin Meor Ahmad ◽  
Kavous Keshavarz

2020 ◽  
Vol 8 (1) ◽  
pp. 41-50
Author(s):  
Firas T. Rasheed ◽  
Abdul naby A. Matrod

"The results showed the efficacy of bacteria Pseudomonas fluorescens and Azotobacter chroococcum and their mixture in inhibiting the soft rot disease caused by the bacteria Pectobacterium carotovorum and reducing the percentage of the disease, as the treatment of using pathogen and the mixture of the two types of bacteria A. chroococcum and P. fluorescens and significantly different from the other treatments as the injury rate reached 26.6%, and the results showed that the use of A.chroococcum treatment was superior to the other treatments in increasing the chlorophyll content, reaching 46.59 mg. L-1, The treatment of using bacteria A. chroococcum showed a superiority in the number of marketable tubers, reaching 4.5 tuber / plant, and the lowest number of non-marketable tubers, reaching 1.09 tuber / plant, and the highest average weight of the marketable tubers was 947.05 g / plant. in the treatment of using a mixture of A. chroococcum and P. fluorescens and the treatment of using A. chroococcum, which amounted to 928.51 g / plant, with a significant difference from all other treatments, while the treatment of using bacteria A. chroococcum gave the lowest weight in the yield of a single unmarketable plant reached 41.95 g / plant"


Author(s):  
Shangbo Jiang ◽  
Jingxin Zhang ◽  
Qiyun Yang ◽  
Dayuan Sun ◽  
Xiaoming Pu ◽  
...  

2021 ◽  
Vol 45 (1) ◽  
Author(s):  
Hassan Abd-El-Khair ◽  
Tarek G. Abdel-Gaied ◽  
Maurice S. Mikhail ◽  
Ahmed I. Abdel-Alim ◽  
Hamdy I. Seif El-Nasr

Abstract Background Several chemical bactericides were applied for controlling soft rot bacteria, Pectobacterium carotovorum subsp. carotovorum, which causes the destructive soft rot disease to many economically important vegetables, but because of their toxic hazards on human and environment became limit. The biocontrol was applied to control many plant pathogens. Therefore, this work is aimed to study the antagonistic activity of bacterial agents, i.e. Bacillus subtilis, Bacillus pumilus, Bacillus megaterium and Pseudomonas fluorescens, and fugal agents, i.e. Trichoderma harzianum, Trichoderma viride and Trichoderma virens, to control bacterial soft rot disease under in vitro and in vivo tests. Results The tested treatments could protect the potato tubers against the development of soft rot. T. viride and T. virens were highly effective in reducing soft rot symptoms on inoculated potato tuber slices, when applied at the same time or 2 h before pathogen inoculation, while B. megaterium and T. harzianum were highly effective when applied at the same time or 2 h after pathogen inoculation. In whole potato tubers technique, B.pumilus highly protected the stored potato tuber under artificially infection conditions, than P. fluorescens, T. harzianum, B. subtilis, T. viride, T. virens and B. megaterium, respectively. Conclusion Application of fungal agents or specify the bacterial species can play an important role in controlling bacterial soft rot disease in vegetables and increase the stored periods of potato tubers under storage conditions without any toxic effects.


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