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Articles by Saroj Sharma
Total Records ( 2 ) for Saroj Sharma
  V.K. Gupta , A.K. Misra , R.K. Gaur , P.K. Jain , D. Gaur and Saroj Sharma
  Guava (Psidium guajava L.) is an important fruit crop of subtropical countries. It is grown almost in all the states of India. It is a hardy crop and is cultivated successfully even in neglected soils and is attacked by a large number of pathogens, mainly fungi. Wilt is the most destructive disease for guava plant in India and losses due to this disease are substantial. Psidium guajava wilt is known to occur from India, Latin America, Malaysia, Pakistan, South Africa, South Asia and Taiwan. Wilt of guava from India was first reported in 1935 from Allahabad. The disease is soil-borne and is difficult to control. Wilt is predominantly caused by the species of Fusarium, of which F. oxysporum is generally the main cause. The other species of Fusarium i.e., Fusarium solani are also dominates in isolation. Since, the disease results in the complete mortality of the affected plants, the loss is total. Although, severe loss is there in the annual crops also, huge monitory losses occur especially in perennial fruit trees as it is a loss of labour of several years. Guava is a crop where this disease is very serious and it can be said that this is the only disease of guava which is threatening guava cultivation in India. It causes monitory as well as nutritional loss. The present communication, deals guava wilt to depict its present status.
  Saroj Sharma , Rajarshi Kumar Gaur and Devendra Kumar Choudhary
  In the present study we recovered endophytic root-nodule bacteria from chickpea (Cicer arietinumi L.) and mothbean (Vigna aconitifolia L.). Phenotypic and genotypic characterization of isolates was performed by employing biochemical and genetic approaches. Sequencing data showed that most isolates belonged to genus, Pseudomonas spp. being a dominant species. They also showed similarity with Rhizobium, Agrobacterium and Erwinia spp. Isolates were screened functionally for indole-3-acetic acid, siderophore production and inorganic phosphorus (Pi) solubilization. All isolates showed Pi solubilization except CJS-2. Nine isolates (CSS-1, CBS-1, CLS-3, CCS-1, CHS-1, VS-1, VL-1, VN-1, VN-2) were found positive for IAA production and eight isolates (CBS-1, CCS-1, CHS-2, CKS-2, CNS-2, VS-1, VJ-1) exhibited positive results for siderophore production. An understanding of the phonetic and functional diversity of these microbes that interact with plants will be worthwhile to fully achieve the biotechnological potential of efficient plant-microbe partnerships for a range of applications.
 
 
 
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