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Cucumber Mosaic Virus as a carotenoid inhibitor reducing Phelipanche aegyptiaca infection in tobacco plants
Year:
2014
Source of publication :
Plant Signaling and Behavior
Authors :
Abu-Nassar, Jackline
;
.
Aly, Radi
;
.
Dubey, Neeraj Kumar
;
.
Eizenberg, Hanan
;
.
Gal-On, Amit
;
.
Ibdah, Mwafaq
;
.
Volume :
9
Co-Authors:

Ibdah, M., Department of Plant Science, ARO, The Volcani Center
Newe-Yaar Research Center, Israel
Dubey, N.K., Department of Plant Pathology and Weed Research, ARO, The Volcani Center
Newe-Yaar Research Center, Ramat Yishay, Israel
Eizenberg, H., Department of Plant Pathology and Weed Research, ARO, The Volcani Center
Dabour, Z., Department of Biology, Zefat Academic College, Zefat, Israel
Abu-Nassar, J., Department of Plant Pathology and Weed Research, ARO, The Volcani Center
Gal-On, A., Department of Plant Pathology and Weed Research, ARO, The Volcani Center, Bet-Dagan, Israel
Aly, R., Department of Plant Pathology and Weed Research, ARO, The Volcani Center

Facilitators :
From page:
1
To page:
6
(
Total pages:
6
)
Abstract:
Cucumber Mosaic Virus (CMV) is a highly infectious cucumovirus, which infects more than 800 plant species and causes major diseases in greenhouse and field crops worldwide. Parasitic weeds such as Phelipanche aegyptiaca are a major constraint to the production of many crops in the world and the parasite’s lifestyle makes control extremely difficult. The parasite seeds can germinate after conditioning and perceiving strigolactones secreted by the host roots. Strigolactones are rhizosphere signaling molecules in plants that are biosynthesized through carotenoid cleavage. In the present study we investigated the possibility of reducing b-carotene and then strigolactone production in the host roots by blocking carotenoid biosynthesis using CMV-infected tobacco. It was found that CMV downregulated the enzyme phytoene desaturase(PDS) and reduced significantly both carotenoid production and Phelipanche infection in tobacco host roots infected with both CMV and P. aegyptiaca. Based on our results (decrease of b-carotene and repression of PDS transcripts in tobacco roots), we hypothesized that the reduction of Phelipanche tubercles and shoots occurred due to an effect of CMV on secondary metabolite stimulators such as strigolacetones. Our study indicated that mass production of the host roots was not affected by CMV; however, most inflorescences of Phelipanche grown on CMV-infected tobacco developed abnormally (deformed shoots and short nodes). Carotenoid biosynthesis inhibitors such as CMV can be used to reduce the production of strigolactones, which will lead to decreased Phelipanche attachment. Interestingly, attenuated CMV strains may provide a safe means for enhancing crop resistance against parasitic weeds in a future plan. © 2014 Taylor & Francis Group, LLC.
Note:
Related Files :
Cucumber mosaic virus
Nicotiana obtusifolia
Nicotiana tabacum
Phelipanche
Phelipanche aegyptiaca
Strigolactones
Show More
Related Content
More details
DOI :
10.4161/psb.32096
Article number:
0
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
31181
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 01:00
You may also be interested in
Scientific Publication
Cucumber Mosaic Virus as a carotenoid inhibitor reducing Phelipanche aegyptiaca infection in tobacco plants
9

Ibdah, M., Department of Plant Science, ARO, The Volcani Center
Newe-Yaar Research Center, Israel
Dubey, N.K., Department of Plant Pathology and Weed Research, ARO, The Volcani Center
Newe-Yaar Research Center, Ramat Yishay, Israel
Eizenberg, H., Department of Plant Pathology and Weed Research, ARO, The Volcani Center
Dabour, Z., Department of Biology, Zefat Academic College, Zefat, Israel
Abu-Nassar, J., Department of Plant Pathology and Weed Research, ARO, The Volcani Center
Gal-On, A., Department of Plant Pathology and Weed Research, ARO, The Volcani Center, Bet-Dagan, Israel
Aly, R., Department of Plant Pathology and Weed Research, ARO, The Volcani Center

Cucumber Mosaic Virus as a carotenoid inhibitor reducing Phelipanche aegyptiaca infection in tobacco plants
Cucumber Mosaic Virus (CMV) is a highly infectious cucumovirus, which infects more than 800 plant species and causes major diseases in greenhouse and field crops worldwide. Parasitic weeds such as Phelipanche aegyptiaca are a major constraint to the production of many crops in the world and the parasite’s lifestyle makes control extremely difficult. The parasite seeds can germinate after conditioning and perceiving strigolactones secreted by the host roots. Strigolactones are rhizosphere signaling molecules in plants that are biosynthesized through carotenoid cleavage. In the present study we investigated the possibility of reducing b-carotene and then strigolactone production in the host roots by blocking carotenoid biosynthesis using CMV-infected tobacco. It was found that CMV downregulated the enzyme phytoene desaturase(PDS) and reduced significantly both carotenoid production and Phelipanche infection in tobacco host roots infected with both CMV and P. aegyptiaca. Based on our results (decrease of b-carotene and repression of PDS transcripts in tobacco roots), we hypothesized that the reduction of Phelipanche tubercles and shoots occurred due to an effect of CMV on secondary metabolite stimulators such as strigolacetones. Our study indicated that mass production of the host roots was not affected by CMV; however, most inflorescences of Phelipanche grown on CMV-infected tobacco developed abnormally (deformed shoots and short nodes). Carotenoid biosynthesis inhibitors such as CMV can be used to reduce the production of strigolactones, which will lead to decreased Phelipanche attachment. Interestingly, attenuated CMV strains may provide a safe means for enhancing crop resistance against parasitic weeds in a future plan. © 2014 Taylor & Francis Group, LLC.
Scientific Publication
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