Influence of plant growth promoting rhizobacteria on fruit yield, pomological characteristics and chemical contents in cucumber mosaic virus-infected tomato plants
Keywords:
PGPR, tomato, fruit quality, CMV.Abstract
The influence of two plant growth promoting rhizobacteria (PGPR) strains, Pseudomonas aeruginosa and Stenotrophomonas rhizophilia, on fruit yields, pomological traits and chemical contents on cucumber mosaic virus (CMV) infected-tomato (Solanum lycopersicum) fruits were studied. Two CMV strains were used to infect tomato plants. CMV-KU1 is a locally isolated CMV associated with a benign viral satellite RNA, while CMV-16 is a satellite-free virus that causes severe stunting, manifested by vegetative and fruit yield loss in tomato. The study was conducted in parallel on two different cultivar varieties of tomato, namely Supermarmande and UC82B and results obtained for each were compared. The results indicated that the presence of the PGPR almost doubled the average yield per plant, even of those plants infected by the CMV viruses, compared to the healthy control treatments. There was also a significant improvement in the pomological qualities of the PGPR-treated tomato fruits compared to the corresponding healthy and virus infected treatments, especially, in the average of weight, hight and volume of fruits. The chemical analysis of tomato fruits revealed that the presence of the PGPRs increased the total protein, lycopene, alkalinity and phenol content of the tomato fruits compared to the healthy controls. However, PGPRs had no influence on reduced sugars, total soluble solids or the titerable acid content, but reduced the amount of ascorbic acid in tomato fruits of infected plants compared to healthy controls.
References
Blay, E. T., Danquah, E. Y., Offei, S. K. Kudadjie, C. 1999. Morphological and agronomic characterization of some tomato (Lycopersicon esculentum) germplasm in Ghana. Ghana Journal of Agricultural Science. 32: 169-175.
Dashti, N., Montasser, M. S., Ali, N. Y., Bhardwaj, R.G. Smith, D.L. 2007. Nitrogen biofixing bacteria compensate for yield loss caused by viral satellite RNA associated with cucumber mosaic virus in tomato. Plant Pathololgy Journal. 23(2): 90-96.
Dashti, N. H., Nedaa, Y. A., Cherian, V. M. Montasser, M. S. 2012. Application of plant growth-promoting rhizobacteria (PGPR in combination with a mild strain of cucumber mosaic virus(CMV) associated with viral satellite RNAs to enhance growth and protection against a virulent strain of CMV in tomato. Canadian Journal of Plant Pathology. 34(2):177-186.
Kacjan Marsic, N., Gasperlin, L., Abram, V., Budic, M. Vidridh, R., 2011. Quality parameters and total phenolic content in tomato fruits regarding cultivar and microclimatic conditions. Turkish Journal of Agriculture. 35: 185-194.
Karakurt, H., Kotan, R., Dadasoglu, F., Aslantas, R. Sahin, F. 2011. Effects of plant growth promoting bacteria on fruit set, pomological and chemical characteristics, color values and vegetative growth of sour cherry (Prunus cerasus cv. Kutahya). Turkish Journal of Biology 35: 283-291.
Montasser, M. S., Dashti, N. H., Ali, N. Y., Bhardwaj, R. Al-Hamar, B. 2006a. Occurrence of three strains of cucumber mosaic virus affecting tomato in Kuwait. Plant Pathology Journal. 22 (1): 51-62.
Montasser, M. S., ِAl-Own, F., Hanif, A. Afzal, M. 2012. Effects of tomato yellow curl virus (TYLCV) infection on tomato cell ultrastructure and physiology. Canadian Journal of Plant Pathology. 34(1): 114-125.
Montasser, Magdy S. 2012. Biological control agent for plants. U.S. Patent 8,138,390 B2, filed May 6, 2010, and issued March 20, 2012.
Murphy, J. F., Reddy, M. S., Ryu, C. M., Kloepper, J. W. Li, R. 2003. Rhizobacteria-mediated growth promotion of tomato leads to protection against cucumber mosaic virus. Phytopathology. 93 (10): 1301-1307.
Olaniyi, J. O., Akanbi, W. B., Adejumo, T. A. Akande, O. J. 2010. Growth, fruit yield and nutritional quality of tomato varieties. African Journal of Food Sciences. 4(6): 398-402.
Ordookhani, K., Khavazi, K., Moezzi, A. Rejali, F. 2010. Influence of PGPR and AMF on antioxidant activity, lycopene and potassium contents in tomato. African Journal of Agricultural Research 5(10): 1108-1116.
Sahran, B. S. Nehra, V. 2011. Plant growth promoting rhizobacteria: A critical review. Life Science and Medical Research. 2011: LMSR-21: 1-30.
Sayama, H. T., Kominato, S. M., Natsuaki, T. Kaper, J. M. 1993. Field testing of a satellite containing attenuated strain of cucumber mosaic virus for tomato protection in Japan. Phytopathology. 83: 405-410.
Siddiqui, Z. A. Akhtar, M. S. 2007. Biocontrol of a chickpea root-rot disease complex with phosphate solubilizing microorganisms. Journal of Plant Pathology. 89:31-42.
Siddiqui, Z. A. Akhtar, M. S. 2009. Effects of antagonistic fungi and plant growth promoting rhizobacteria on growth of tomato and reproduction of root-knot nematode Meloidogyne incognita. Australasian Plant Pathology. 38: 22-28.
Turhan, A. Seniz, V. 2009. Estimation of certain chemical constituents of fruits of selected tomato genotypes grwon in Turkey, African Journal of Agricultural Research, 4(10): 1086-1092.
