scholarly journals Characterization of onion soft rot bacteria in Bangladesh

2017 ◽  
Vol 52 (3) ◽  
pp. 209-220
Author(s):  
MM Rahman ◽  
MAA Khan ◽  
IH Mian ◽  
AM Akanda ◽  
MZ Alam
Keyword(s):  
Bacterial Pathogens ◽  
Soft Rot ◽  
Pectobacterium Carotovorum ◽  
Bacterial Isolates ◽  
Biochemical Tests ◽  
Carotovorum Subsp ◽  
O 15 ◽  
O 69 ◽  
Physiological And Biochemical

A study was undertaken for characterization and identification of the soft rot causing bacterial pathogens of onion. Bacterial pathogens were isolated from soft rotted stored onions of different varieties and locations of Bangladesh. Altogether 73 bacterial isolates were isolated from soft rotted onions. Among them, twelve soft rot-positive isolates were selected for characterization and identification on the basis of more virulence. Physiological and biochemical tests were performed following standard methods for characterization and identification of selected soft rot bacterial isolates. Seven isolates namely O-03, O-18, O-69, O-72, O-130, O-156 and O-180 were identified as Pectobacterium carotovorum subsp. carotovorum (E. carotovora subsp. carotovora), two isolates O-101 and O-118 were identified as E. chrysanthemi and three isolates O-05, O-14 and O-15 were the members of Burkholderia cepacia.Bangladesh J. Sci. Ind. Res. 52(3), 209-220, 2017

Characterization of Pectobacterium carotovorum subsp. carotovorum Bacteriophage PP16 Prospective for Biocontrol of Potato Soft Rot

Microbiology ◽  
2019 ◽  
Vol 88 (4) ◽  
pp. 451-460 ◽  
Author(s):  
M. V. Voronina ◽  
E. N. Bugaeva ◽  
D. M. Vasiliev ◽  
A. P. Kabanova ◽  
A. P. Barannik ◽  
...  
Keyword(s):  
Soft Rot ◽  
Pectobacterium Carotovorum ◽  
Carotovorum Subsp

scholarly journals Pectobacterium carotovorum subsp. brasiliense Causes Soft Rot and Death of Neobuxbaumia tetetzo in Zapotitlan Salinas Valley, Puebla, Mexico

Plant Disease ◽  
2019 ◽  
Vol 103 (3) ◽  
pp. 398-403 ◽  
Author(s):  
Dimas Mejía-Sánchez ◽  
Sergio Aranda-Ocampo ◽  
Cristian Nava-Díaz ◽  
Daniel Teliz-Ortiz ◽  
Manuel Livera-Muñoz ◽  
...  
Keyword(s):  
Soft Rot ◽  
Genetic Identification ◽  
Pectobacterium Carotovorum ◽  
Bacterial Isolates ◽  
First Report ◽  
Whole Plant ◽  
Salinas Valley ◽  
Pathogenicity Tests ◽  
Carotovorum Subsp ◽  
Rdna Igs

Neobuxbaumia tetetzo (Coulter) Backeberg (tetecho) is a columnar cactus endemic to Mexico. Tetecho plants, flowers, fruits, and seeds play an important role in the semiarid ecosystem, as they serve as a refuge and food for insects, bats, and birds, and are widely used by ethnic groups since pre-Hispanic times. Tetecho is affected by a soft rot that damages the whole plant and causes its fall and disintegration. Eight bacterial colonies of similar morphology were isolated from plants showing soft rot and inoculated in healthy tetecho plants, reproducing typical symptoms of soft rot 9 days after inoculation. Ten representative isolates were selected for phenotypic and genetic identification using 16s rDNA, IGS 16S-23S rDNA, and rpoS genes and for pathogenicity tests on several members of the cactus family and other plants. Based on the results, these bacterial isolates were identified as Pectobacterium carotovorum subsp. brasiliense. Inoculation of this bacteria caused soft rot in different cacti, fruits, leaves, and roots of other plants. This is the first report of the subspecies brasiliense of P. carotovorum causing soft rot and death in cacti in the world and the first report of this subspecies in Mexico.

Characterization of Pectobacterium carotovorum subsp. carotovorum causing soft-rot disease on Pinellia ternata in China

2007 ◽  
Vol 120 (3) ◽  
pp. 305-310 ◽  
Author(s):  
Xiu-Fang Hu ◽  
Fei-Xiang Ying ◽  
Yu-Bo He ◽  
Yuan-Yuan Gao ◽  
Hai-Min Chen ◽  
...  
Keyword(s):  
Soft Rot ◽  
Pectobacterium Carotovorum ◽  
Pinellia Ternata ◽  
Soft Rot Disease ◽  
Carotovorum Subsp ◽  
Rot Disease

scholarly journals The Utilization of Rum Slops by Marine Bacteria. II. Characterization of Efficient Strains.

1969 ◽  
Vol 63 (2) ◽  
pp. 189-194
Author(s):  
D. R. Hale ◽  
T. R. Tosteson
Keyword(s):  
Molecular Weight ◽  
Sea Water ◽  
Necessary Condition ◽  
Bacterial Isolates ◽  
Bacterial Strains ◽  
Biochemical Tests ◽  
Marine Communities ◽  
Water Media ◽  
Physiological And Biochemical

Twenty bacterial isolates from selected marine communities were obtained employing solid, modified sea water media contain ing slops. Thirteen basic morphological, cytological, physiological and biochemical tests were conducted to characterize six of the strains that grew most successfully on the slops media. The ability to hydrolyze high molecular weight sugars and proteins appears to be a necessary condition for the successful growth of some of these isolates on slops media. Tentative identifications of these bacterial strains were made.

scholarly journals First Report of Pectobacterium carotovorum subsp. brasiliense Causing Soft Rot on Squash and Watermelon in Serbia

Plant Disease ◽  
2019 ◽  
Vol 103 (10) ◽  
pp. 2667-2667 ◽  
Author(s):  
N. Zlatković ◽  
A. Prokić ◽  
K. Gašić ◽  
N. Kuzmanović ◽  
M. Ivanović ◽  
...  
Keyword(s):  
Soft Rot ◽  
Pectobacterium Carotovorum ◽  
First Report ◽  
Carotovorum Subsp

scholarly journals The Ribosomal Protein RplY Is Required for Pectobacterium carotovorum Virulence and Is Induced by Zantedeschia elliotiana Extract

2017 ◽  
Vol 107 (11) ◽  
pp. 1322-1330 ◽  
Author(s):  
Huan Jiang ◽  
Mengyi Jiang ◽  
Liuke Yang ◽  
Peiyan Yao ◽  
Lin Ma ◽  
...  
Keyword(s):  
Plant Extract ◽  
Plant Cell Wall ◽  
Insertion Site ◽  
Bacterial Pathogen ◽  
Soft Rot ◽  
Kanamycin Resistance ◽  
Pectobacterium Carotovorum ◽  
Promoter Trap ◽  
Carotovorum Subsp ◽  
Rot Disease

Pectobacterium carotovorum subsp. carotovorum strain PccS1, a bacterial pathogen causing soft rot disease of Zantedeschia elliotiana (colored calla), was investigated for virulence genes induced by the host plant. Using a promoter-trap transposon (mariner), we obtained 500 transposon mutants showing kanamycin resistance dependent on extract of Z. elliotiana. One of these mutants, PM86, exhibited attenuated virulence on both Z. elliotiana and Brassica rapa subsp. pekinensis. The growth of PM86 was also reduced in minimal medium (MM), and the reduction was restored by adding plant extract to the MM. The gene containing the insertion site was identified as rplY. The deletion mutant ΔrplY, exhibited reduced virulence, motility and plant cell wall-degrading enzyme production but not biofilm formation. Analysis of gene expression and reporter fusions revealed that the rplY gene in PccS1 is up-regulated at both the transcriptional and the translational levels in the presence of plant extract. Our results suggest that rplY is induced by Z. elliotiana extract and is crucial for virulence in P. carotovorum subsp. carotovorum.

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