scholarly journals Bacterial Soft Rot of Winter Mushroom and Oyster Mushroom Caused by Erwinia carotovora subsp. carotovora.

1999 ◽  
Vol 65 (4) ◽  
pp. 460-464 ◽  
Author(s):  
Hiroshi OKAMOTO ◽  
Mamoru SATO ◽  
Makoto ISAKA
Keyword(s):  
Erwinia Carotovora ◽  
Soft Rot ◽  
Oyster Mushroom ◽  
Bacterial Soft Rot

scholarly journals Assessing Susceptibility of Carrot Roots to Bacterial Soft Rot

HortScience ◽  
1992 ◽  
Vol 27 (9) ◽  
pp. 1020-1022 ◽  
Author(s):  
Barbara Michalik ◽  
Philipp W. Simon ◽  
Warren H. Gabelman
Keyword(s):  
Screening Method ◽  
Erwinia Carotovora ◽  
Soft Rot ◽  
Bacterial Suspension ◽  
Bacterial Soft Rot ◽  
Severe Damage ◽  
Cross Sectional ◽  
Severity Of Disease ◽  
Disease Damage ◽  
Consistent Response

Four methods for screening carrot (Daucus carota L.) germplasm for resistance to bacterial soft rot were compared. There were differences in resistance among strains, with most severe damage caused by Erwinia carotovora pv. carotovora SR 394 (L.R. Jones) Holland and Erwinia carotovora pv. atroseptica SR 159 (van Hall) Jennison. Inoculation of cross-sectional root slices with bacteria applied in suspension-soaked paper disks produced the most consistent response. The severity of disease damage was proportional to bacterial suspension concentration. With the development of a standard screening method, it may be possible for breeders to breed carrots with reduced susceptibility to soft rot.

scholarly journals Comparison of Packing Systems for Injury and Bacterial Soft Rot on Bell Pepper Fruit

1994 ◽  
Vol 4 (3) ◽  
pp. 269-272 ◽  
Author(s):  
Sergio J. Carballo ◽  
Sylvia M. Blankenship ◽  
Douglas C. Sanders ◽  
David F. Ritchie ◽  
Michael D. Boyette
Keyword(s):  
Erwinia Carotovora ◽  
Soft Rot ◽  
Bell Pepper ◽  
Bacterial Soft Rot ◽  
Growing Seasons ◽  
Pepper Fruit ◽  
Fruit Decay ◽  
Handling Practices ◽  
Handling Methods ◽  
The Individual

Commercial packing lines in Sampson County, N.C., were surveyed during two growing seasons to study handling methods on susceptibility of bell pepper fruits (Capsicum annuum L.) to bacterial soft rot (Erwinia carotovora subsp. carotovora). Samples were taken from two field packers and one packing house in 1991 and from two field packers and four packing houses in 1992. One field packer and one packing house were common to both years. Fruits were either inoculated with bacteria or untreated and stored at 10 or 21C. Damaged fruits were counted and classified as crushed, cut, bruised, abraded, and other injuries. Fruit injury was less dependent on whether the operation was a packing house or a field packing line than on the overall handling practices of the individual grower. In general, packing peppers in packing houses resulted in an increased number of bruises, whereas fruit from field packing lines had more abrasions. More open skin injuries resulted in greater fruit decay. In both years, fruits stored at 10C had less top rot than fruits stored at 21C. In 1992, they also had less pod rot. Dry and chlorinated lines often had equivalent rot problems.

Erwinia carotovora var. carotovora. [Descriptions of Fungi and Bacteria].

1977 ◽  
Author(s):  
J. F. Bradbury
Keyword(s):  
Geographical Distribution ◽  
Plant Material ◽  
World Wide ◽  
Erwinia Carotovora ◽  
Soft Rot ◽  
Natural Soil ◽  
Bacterial Soft Rot ◽  
Running Water ◽  
Small Water ◽  
Rain Splash

Abstract A description is provided for Erwinia carotovora var. carotovora. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On a wide variety of plants affecting particularly their fleshy parts. Elliott (31: 105) lists species belonging to 44 genera as hosts. DISEASE: Bacterial soft rot, a rapidly progressing soft wet rot. The first sign is usually a small water-soaked area, which rapidly enlarges, the tissue becoming soft. In favourable conditions the whole infected organ may become a rotten mass in a few days. GEOGRAPHICAL DISTRIBUTION: World wide. TRANSMISSION: The bacteria are likely to be present in any natural soil in which there is decaying plant material. They can be transmitted by many different methods, including, rain splash, running water, insects, tools, hands and clothing of workers, machinery, in air-borne particles and aerosols. They may possibly be carried with seed in the attached debris, but this is unhkely to be important in normal agriculture. The organism requires a wound to gain entry, and usually a weakened or sickly plant if the rot is to proceed in the growing plant. Most healthy growing plants are able to exclude the bacteria by laying down corky tissue in response to the wounding.

Studies on bacterial soft rot of celery in Victoria

1976 ◽  
Vol 16 (83) ◽  
pp. 915 ◽  
Author(s):  
DLS Wimalajeewa
Keyword(s):  
Sodium Hypochlorite ◽  
Erwinia Carotovora ◽  
Soft Rot ◽  
Disease Development ◽  
Bacterial Soft Rot ◽  
Causal Organism ◽  
Cupric Hydroxide ◽  
In Transit ◽  
And Storage ◽  
Practical Implications

The causal organism of bacterial soft rot of celery was isolated and characterized, and its control was studied. The causal organism was identified as Erwinia carotovora var. carotovora (Jones) Dye. It was also pathogenic on potato in the glasshouse, causing atypical black leg symptoms. The practical implications of this finding are discussed. Infection appeared to occur at all temperatures tested in the range 1-35�C. Disease development was optimal at 30�C, but was completely checked at 1�C. Four chemicals were evaluated in the laboratory for control in transit and storage. Sodium hypochlorite provided the best control. Two copper fungicides were evaluated in the field. Cupric hydroxide provided the best control. The suitability of using this fungicide for the control of Septoria leaf spot as wall, during summer, is discussed.

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