Biological control of post-harvest late blight of potatoes

2007 ◽  
Vol 17 (6) ◽  
pp. 647-663 ◽  
Author(s):  
Patricia J. Slininger ◽  
David A. Schisler ◽  
Linda D. Ericsson ◽  
Tina L. Brandt ◽  
Mary Jo Frazier ◽  
...  
Keyword(s):  
Biological Control ◽  
Late Blight ◽  
Post Harvest

scholarly journals Biological Control and Mitigation of Aflatoxin Contamination in Commodities

Toxins ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 104
Author(s):  
Ferenc Peles ◽  
Péter Sipos ◽  
Szilvia Kovács ◽  
Zoltán Győri ◽  
István Pócsi ◽  
...  
Keyword(s):  
Biological Control ◽  
Secondary Metabolites ◽  
Competitive Exclusion ◽  
Aflatoxin Contamination ◽  
Post Harvest ◽  
Physical Chemical ◽  
Synthetic Chemicals ◽  
Ruminal Degradation

Aflatoxins (AFs) are toxic secondary metabolites produced mostly by Aspergillus species. AF contamination entering the feed and food chain has been a crucial long-term issue for veterinarians, medicals, agroindustry experts, and researchers working in this field. Although different (physical, chemical, and biological) technologies have been developed, tested, and employed to mitigate the detrimental effects of mycotoxins, including AFs, universal methods are still not available to reduce AF levels in feed and food in the last decades. Possible biological control by bacteria, yeasts, and fungi, their excretes, the role of the ruminal degradation, pre-harvest biocontrol by competitive exclusion or biofungicides, and post-harvest technologies and practices based on biological agents currently used to alleviate the toxic effects of AFs are collected in this review. Pre-harvest biocontrol technologies can give us the greatest opportunity to reduce AF production on the spot. Together with post-harvest applications of bacteria or fungal cultures, these technologies can help us strictly reduce AF contamination without synthetic chemicals.

scholarly journals Kemampuan Bakteri Endofit Akar dan Ubi Kentang untuk Menekan Penyakit Busuk Lunak (Erwinia carotovora pv. carotovora) pada Ubi

Agrikultura ◽  
2016 ◽  
Vol 27 (3) ◽  
Author(s):  
Noor Istifadah ◽  
Muhamad Salman Umar ◽  
Sudarjat Sudarjat ◽  
Luciana Djaya
Keyword(s):  
Biological Control ◽  
Potato Tuber ◽  
Endophytic Bacteria ◽  
Erwinia Carotovora ◽  
Soft Rot ◽  
Soft Rot Disease ◽  
Post Harvest ◽  
Rot Disease

ABSTRACTThe abilities of endophytic bacteria from potato roots and tubers to suppress soft rot disease (Erwinia carotovora pv. carotovora) in potato tuberSoft rot disease caused by Erwinia carotovora pv. carotovora is one of limiting factors in cultivation and post harvest of potato. The eco-friendly control measure that can be developed for controlling the diseases is biological control. Microbes that are potential as biological control agents include endophytic bacteria. This paper discussed the results of study examining the potential of endophytic bacteria isolated from roots and tubers of potato to inhibit the growth of E. carotovora pv. carotovora in vitro and suppress soft rot disease in potato tuber. The results showed that among 24 isolates examined, four isolates of endophytic bacteria (one isolate from potato tuber and three isolates from potato roots) inhibited the growth of E. carotovora pv. carotovora in vitro with inhibition zone 3.5-6.8 mm. In the in vivo test, the isolates inhibited the soft rot disease in potato tuber by 71.5-86.4%. The isolate that tended to show relatively better inhibition in vitro and in vivo was isolate from potato tuber which is CK U3 (Lysinibacillus sp.)Keywords: Biological control, Endophytic bacteria, Post-harvest, Potato, Soft rot diseaseABSTRAKPenyakit busuk lunak yang disebabkan bakteri Erwinia carotovora pv. carotovora, merupakan salah satu kendala dalam budidaya dan pascapanen kentang. Cara pengendalian ramah lingkungan yang dapat dikembangkan untuk menekan penyakit tersebut adalah pengendalian biologi. Kelompok mikroba yang berpotensi sebagi agens pengendali biologi adalah bakteri endofit. Artikel ini mendiskusikan potensi isolat bakteri endofit yang berasal dari ubi dan akar kentang untuk menghambat pertumbuhan bakteri E. carotovora pv. carotovora secara in vitro dan menekan perkembangan penyakit busuk lunak pada ubi kentang. Hasil percobaan menunjukkan bahwa diantara 24 isolat bakteri yang diuji, terdapat empat isolat bakteri endofit (satu isolat dari ubi kentang dan tiga isolat dari akar kentang) yang dapat menghambat pertumbuhan bakteri E. carotovora pv. carotovora secara in vitro dengan zona penghambatan sebesar 3,5-6,8 mm. Pada pengujian secara in vivo, isolat-isolat tersebut dapat menekan perkembangan penyakit busuk lunak pada ubi kentang sebesar 71,5-86,4%. Isolat yang cenderung menunjukkan penghambatan relatif lebih baik secara in vitro dan in vivo adalah isolat bakteri endofit asal ubi kentang yaitu isolat CK U3 (Lysinibacillus sp.).Kata Kunci: Pengendalian biologi, Bakteri endofit, Pascapanen, Kentang, Penyakit busuk basah

scholarly journals Behavior of the Biological Control Agent Bacillus thuringiensis subsp. aizawai ABTS-1857 and Salmonella enterica on Spinach Plants and Cut Leaves

2021 ◽  
Vol 12 ◽  
Author(s):  
Xingchen Zhao ◽  
Marcelo Belchior Rosendo da Silva ◽  
Inge Van der Linden ◽  
Bernadette D. G. M. Franco ◽  
Mieke Uyttendaele
Keyword(s):  
Biological Control ◽  
Bacillus Thuringiensis ◽  
Salmonella Enterica ◽  
Biological Control Agent ◽  
Fresh Produce ◽  
Agricultural Field ◽  
Vegetative Cells ◽  
Post Harvest ◽  
Cut Leaves ◽  
Spinach Leaves

Fresh produce has been identified as an important vehicle for the transmission of foodborne pathogens. This study evaluated the behavior of vegetative cells and spores of Bacillus thuringiensis, one of the main biological control agents (BCAs) used in the world, and Salmonella enterica on spinach plants (pre-harvest) and spinach cut leaves (post-harvest) at 12°C, experimentally inoculated as single or co-cultures. The results evidenced that spray-inoculated commercial BCA containing Bacillus thuringiensis subsp. aizawai ABTS-1857 (BTa ABTS-1857) spores persisted well on spinach leaves in both pre- and post-harvest simulations. However, when BTa ABTS-1857 vegetative cells were spray-inoculated, more than 2 log reductions in the counts of B. thuringiensis were observed during 20 days pre- and 5 days post-harvest simulations, respectively. The counts of S. Montevideo on the spinach cut leaves during post-harvest storage at 12°C for 5 days remained unchanged, whereas 1 log reduction was noted during pre-harvest. Moreover, during pre-harvest simulation, when co-inoculated with BTa ABTS-1857 vegetative cells or spores, additional 0.5 or 1.0 log reductions were detected on the counts of S. Montevideo in the spinach leaves on the 10th day. These results were obtained under laboratory conditions, and further findings in longitudinal studies from farm (in the agricultural field) to retail (end of shelf life) will contribute to understanding of the role of B. thuringiensis as a BCA on growth/survival of Salmonella spp. in fresh produce.

Biological control of post-harvest diseases of fruits and vegetables: alternatives to synthetic fungicides

1991 ◽  
Vol 10 (3) ◽  
pp. 172-177 ◽  
Author(s):  
Charles L. Wilson ◽  
Michael E. Wisniewski ◽  
Charles L. Biles ◽  
Randy McLaughlin ◽  
Edo Chalutz ◽  
...  
Keyword(s):  
Biological Control ◽  
Fruits And Vegetables ◽  
Post Harvest

The Use of Psychrophilic Antarctic Yeast in the Biological Control of Post-harvest Diseases of Fruits Stored at Low Temperatures

2019 ◽  
pp. 243-263 ◽  
Author(s):  
Eskálath Morganna Silva Ferreira ◽  
Deyse Alencar Resende ◽  
Silvana Vero ◽  
Raphael Sanzio Pimenta
Keyword(s):  
Biological Control ◽  
Low Temperatures ◽  
Post Harvest ◽  
Antarctic Yeast

A review of mechanisms of action of biological control organisms against post-harvest fruit spoilage

EPPO Bulletin ◽  
2011 ◽  
Vol 41 (1) ◽  
pp. 65-71 ◽  
Author(s):  
M. Jamalizadeh ◽  
H. R. Etebarian ◽  
H. Aminian ◽  
A. Alizadeh
Keyword(s):  
Biological Control ◽  
Mechanisms Of Action ◽  
Post Harvest

Mitigation of Aflatoxin Contamination in Groundnuts using Trichoderma viride

2021 ◽  
Vol 25 (12) ◽  
pp. 32-43
Author(s):  
D. Syamala ◽  
S. Nabanita Kumar ◽  
P. Lalitha
Keyword(s):  
Biological Control ◽  
Aspergillus Flavus ◽  
Trichoderma Viride ◽  
Culture Technique ◽  
Aflatoxin Contamination ◽  
Dual Culture ◽  
Chemical Methods ◽  
Post Harvest ◽  
Carcinogenic Agents ◽  
Physical And Chemical

Groundnuts are often prone to contamination by Microorganisms during pre-harvest or post-harvest storage. One such contaminant is Aspergillus flavus which is abundantly found in soil and air. Several strains of A. flavus are known to produce mycotoxins named as aflatoxins. These aflatoxins are potent carcinogenic agents whose destruction has become a challenging task in the present scenario. Various physical and chemical methods are available to eliminate the growth of Aspergillus flavus but these methods have several demerits. The present study is based on biological control of Aspergillus flavus using Trichoderma viride strain TV 10. Antagonistic studies of Tv 10 against A.flavus were carried out by performing dual culture technique.

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