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קהילה:
אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Dyella-Like bacterium isolated from an insect as a potential biocontrol agent against grapevine yellows
Year:
2018
Source of publication :
Phytopathology
Authors :
זהבי, תרצה
;
.
פרייליך, שירי
;
.
צחורי-פיין, עינת
;
.
Volume :
108
Co-Authors:

Iasur-Kruh, L., Department of Biotechnology Engineering, ORT Braude College of Engineering, Karmiel, Israel;

Barkai, R., Extension Service, Ministry of Agriculture, Qiriat Shmona, Israel;

Zchori-Fein, E., Department of Biotechnology Engineering, ORT Braude College of Engineering, Karmiel, Israel, Ohallo College, Katzrin, Israel;

Naor, V., Shamir Research Institute, Katzrin, Israel

Facilitators :
From page:
336
To page:
341
(
Total pages:
6
)
Abstract:

Yellows diseases, caused by phytopathogenic bacteria of the genus Phytoplasma , are a major threat to grapevines worldwide. Because conventional applications against this pathogen are inefficient and disease management is highly challenging, the use of beneficial bacteria has been suggested as a biocontrol solution. A Dyella-like bacterium (DLB), isolated from the Israeli insect vector of grapevine yellows (Hyalesthes obsoletus), was sug-gested to be an endophyte. To test this hypothesis, the bacterium was intro-duced by spraying the plant leaves, and it had no apparent phytotoxicity to grapevine. Fluorescent in situ hybridization analysis showed that DLB is colonizing grapevine phloem. Because phytoplasmas inhabit the same niche, DLB interactions with this phytopathogen were examined. When the isolate was introduced to phytoplasma-infected Chardonnay plantlets, mor-phological disease symptoms were markedly reduced. The mode of DLB action was then tested using bioinformatics and system biology tools. DLB genome analysis suggested that the ability to reduce phytoplasma symptoms is related to inhibition of the pathogenic bacterium. These results provide the first step in examining the potential of DLB as a biological control agent against phytoplasmas in grapevine and, possibly, other agricultural crops. © 2018 The American Phytopathological Society.

Note:
Related Files :
biological control
Grapevine-yellows
Phytoplasma
Vitis
עוד תגיות
תוכן קשור
More details
DOI :
https://doi.org/10.1094/PHYTO-06-17-0199-R
Article number:
0
Affiliations:

Department of Biotechnology Engineering, ORT Braude College of Engineering, Karmiel, Israel; Department of Entomology, Agricultural Research Organization, Ramat Yishay, Israel; Extension Service, Ministry of Agriculture, Qiriat Shmona, Israel; Shamir Research Institute, Katzrin, Israel; Department of Natural Resources, Agricultural Research Organization, Ramat Yishay, Israel; Ohallo College, Katzrin, Israel

Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
36560
Last updated date:
02/03/2022 17:27
Creation date:
12/08/2018 13:02
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Scientific Publication
Dyella-Like bacterium isolated from an insect as a potential biocontrol agent against grapevine yellows
108

Iasur-Kruh, L., Department of Biotechnology Engineering, ORT Braude College of Engineering, Karmiel, Israel;

Barkai, R., Extension Service, Ministry of Agriculture, Qiriat Shmona, Israel;

Zchori-Fein, E., Department of Biotechnology Engineering, ORT Braude College of Engineering, Karmiel, Israel, Ohallo College, Katzrin, Israel;

Naor, V., Shamir Research Institute, Katzrin, Israel

Dyella-Like bacterium isolated from an insect as a potential biocontrol agent against grapevine yellows

Yellows diseases, caused by phytopathogenic bacteria of the genus Phytoplasma , are a major threat to grapevines worldwide. Because conventional applications against this pathogen are inefficient and disease management is highly challenging, the use of beneficial bacteria has been suggested as a biocontrol solution. A Dyella-like bacterium (DLB), isolated from the Israeli insect vector of grapevine yellows (Hyalesthes obsoletus), was sug-gested to be an endophyte. To test this hypothesis, the bacterium was intro-duced by spraying the plant leaves, and it had no apparent phytotoxicity to grapevine. Fluorescent in situ hybridization analysis showed that DLB is colonizing grapevine phloem. Because phytoplasmas inhabit the same niche, DLB interactions with this phytopathogen were examined. When the isolate was introduced to phytoplasma-infected Chardonnay plantlets, mor-phological disease symptoms were markedly reduced. The mode of DLB action was then tested using bioinformatics and system biology tools. DLB genome analysis suggested that the ability to reduce phytoplasma symptoms is related to inhibition of the pathogenic bacterium. These results provide the first step in examining the potential of DLB as a biological control agent against phytoplasmas in grapevine and, possibly, other agricultural crops. © 2018 The American Phytopathological Society.

Scientific Publication
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