Kusam Rana - Academia.edu (original) (raw)
Papers by Kusam Rana
Microbial Biosystems, 2020
Microbes are ubiquitous in nature, and plant-microbe interactions are a key strategy for colonizi... more Microbes are ubiquitous in nature, and plant-microbe interactions are a key strategy for colonizing diverse habitats. Fungi are producing a wide range of secondary metabolites and bioactive compounds, which are probable alternative sources of drugs and/or antibiotics. Fungi are associated with the crops and plays an important role in plant growth promotion and enhanced soil fertility using different PGP mechanism such as solubilization of phosphorus, zinc, potassium; production of plant growth regulator (auxins, cytokinin, gibberellins, ethylene and abscisic acid); hydrolytic enzymes (xylanases, laccase, pectinases, cellulases); and siderophores. Besides eliciting plant defence reaction against pathogens; PGP fungi also help in plant growth promotion and alleviation of different abiotic stresses under harsh environments. The PGP fungi have reported from different genera of phyla Chytridiomycota, Zygomycota, Glomeromycota, Ascomycota, and Basidiomycota. Fungi also have significant potential applications in various industries like medical, and food. In the medical applications, fungi and fungal products are used to control disease in human and animals. In the fermentation industries fungi used to make alcoholic beverages, cheeses, bread, kefir, yogurt and various other food preparations and the agricultural sectors used to make plant healthy and protects to pathogens. The present review, deals with the biodiversity of beneficial fungi from different habitats and their biotechnological applications in plant growth promotion and soil health
Antonie van Leeuwenhoek, 2020
Endophytic microbes, since their discovery are known to live asymptomatically inside their host t... more Endophytic microbes, since their discovery are known to live asymptomatically inside their host throughout different stages of their life cycle and play crucial role in growth, development, fitness, and diversification of plant. The plant-endophyte association ranges from mutualism to pathogenicity. Endophytic microbes help the host to combat diverse arrays of both biotic and abiotic stressful conditions. Endophytic microbes play a major role in growth enhancement of their host, solubilization of macronutrients such as phosphorous, potassium, and zinc, fixation of atmospheric nitrogen, synthesis of phytohormones, siderophores, hydrogen cyanide, ammonia, and act as a biocontrol agent against wide array of phytopathogens etc. Endophytic microbes are beneficial to plant by directly promoting their growth or indirectly by inhibiting the growth of phytopathogens. Over a long period of co-evolution endophytic microbes have attained the mechanism of synthesis of various hydrolytic enzymes such as pectinase, xylanases, cellulase, proteinase etc. which promote the penetration of endophytic microbes into tissues of plants. The enzymes are very specific in their action on substrate and play different roles, such as convert macromolecule into small one as well as toxic substance into less toxic. The effective usages of endophytic microbes in the form of biofertilizers reduce the usage of chemical fertilizers. Endophytic microbes belong to different phyla such as Actinobacteria, Acidobacteria, Bacteroidetes, Deinococcus-thermus, Firmicutes, Proteobacteria, and Verrucomicrobia. The most predominant and studied endophytic bacteria belonged to Proteobacteria followed by Firmicutes and then by Actinobacteria. The most dominant among reported genera in most of the leguminous and non-leguminous plants are Bacillus, Pseudomonas, Fusarium, Burkholderia, Rhizobium, and Klebsiella. In future, for the sustainable agriculture, endophytic microbes have a wide range of potential for maintaining health of plant as well as environmental conditions. The present review is focused on the research being done on endophytic microbes including their diversity in leguminous as well as non-leguminous crops, biotechnological applications, and ability to promote the growth of plant
31, 2020
Genetically varying, wild, traditional or ancient food crops were nutritional rich compounds such... more Genetically varying, wild, traditional or ancient food crops were nutritional rich compounds such as micronutrients. But now a day’s level of micronutrients has been declined and even some has been vanished from the food crops because farmers chose to grow more productivity of the crops and make more profits. The reduced amount of micronutrients in food crops causing micronutrient deficiencies or hidden hunger in human, which is one of the serious global threats that affect more than two million people worldwide. Hidden hunger can cause dangerous health conditions and diseases such as birth defect, cancer, cardiovascular disease, osteoporosis, neurodegenerative disorders and many more. To overcome these issue microbes mediated biofortification is a new and promising option for the bioavailibity of nutrient to plants. Biofortification is getting more attention to incraese phytoavialbility of micronutrients easpecially Fe, Zn, Mg, Se in the major food crops. Utilization of diverse types of microbes that promotes plant growth is becoming effective approach to substitute synthetic fertilizers, pesticides, and supplements. Microbes mobilize the nutrients by various mechanisms such as acidification, chelation, exchange reactions, and release of organic acids.
Microbial Biosystems, 2020
Microbes are ubiquitous in nature, and plant-microbe interactions are a key strategy for colonizi... more Microbes are ubiquitous in nature, and plant-microbe interactions are a key strategy for colonizing diverse habitats. Fungi are producing a wide range of secondary metabolites and bioactive compounds, which are probable alternative sources of drugs and/or antibiotics. Fungi are associated with the crops and plays an important role in plant growth promotion and enhanced soil fertility using different PGP mechanism such as solubilization of phosphorus, zinc, potassium; production of plant growth regulator (auxins, cytokinin, gibberellins, ethylene and abscisic acid); hydrolytic enzymes (xylanases, laccase, pectinases, cellulases); and siderophores. Besides eliciting plant defence reaction against pathogens; PGP fungi also help in plant growth promotion and alleviation of different abiotic stresses under harsh environments. The PGP fungi have reported from different genera of phyla Chytridiomycota, Zygomycota, Glomeromycota, Ascomycota, and Basidiomycota. Fungi also have significant potential applications in various industries like medical, and food. In the medical applications, fungi and fungal products are used to control disease in human and animals. In the fermentation industries fungi used to make alcoholic beverages, cheeses, bread, kefir, yogurt and various other food preparations and the agricultural sectors used to make plant healthy and protects to pathogens. The present review, deals with the biodiversity of beneficial fungi from different habitats and their biotechnological applications in plant growth promotion and soil health
Antonie van Leeuwenhoek, 2020
Endophytic microbes, since their discovery are known to live asymptomatically inside their host t... more Endophytic microbes, since their discovery are known to live asymptomatically inside their host throughout different stages of their life cycle and play crucial role in growth, development, fitness, and diversification of plant. The plant-endophyte association ranges from mutualism to pathogenicity. Endophytic microbes help the host to combat diverse arrays of both biotic and abiotic stressful conditions. Endophytic microbes play a major role in growth enhancement of their host, solubilization of macronutrients such as phosphorous, potassium, and zinc, fixation of atmospheric nitrogen, synthesis of phytohormones, siderophores, hydrogen cyanide, ammonia, and act as a biocontrol agent against wide array of phytopathogens etc. Endophytic microbes are beneficial to plant by directly promoting their growth or indirectly by inhibiting the growth of phytopathogens. Over a long period of co-evolution endophytic microbes have attained the mechanism of synthesis of various hydrolytic enzymes such as pectinase, xylanases, cellulase, proteinase etc. which promote the penetration of endophytic microbes into tissues of plants. The enzymes are very specific in their action on substrate and play different roles, such as convert macromolecule into small one as well as toxic substance into less toxic. The effective usages of endophytic microbes in the form of biofertilizers reduce the usage of chemical fertilizers. Endophytic microbes belong to different phyla such as Actinobacteria, Acidobacteria, Bacteroidetes, Deinococcus-thermus, Firmicutes, Proteobacteria, and Verrucomicrobia. The most predominant and studied endophytic bacteria belonged to Proteobacteria followed by Firmicutes and then by Actinobacteria. The most dominant among reported genera in most of the leguminous and non-leguminous plants are Bacillus, Pseudomonas, Fusarium, Burkholderia, Rhizobium, and Klebsiella. In future, for the sustainable agriculture, endophytic microbes have a wide range of potential for maintaining health of plant as well as environmental conditions. The present review is focused on the research being done on endophytic microbes including their diversity in leguminous as well as non-leguminous crops, biotechnological applications, and ability to promote the growth of plant
31, 2020
Genetically varying, wild, traditional or ancient food crops were nutritional rich compounds such... more Genetically varying, wild, traditional or ancient food crops were nutritional rich compounds such as micronutrients. But now a day’s level of micronutrients has been declined and even some has been vanished from the food crops because farmers chose to grow more productivity of the crops and make more profits. The reduced amount of micronutrients in food crops causing micronutrient deficiencies or hidden hunger in human, which is one of the serious global threats that affect more than two million people worldwide. Hidden hunger can cause dangerous health conditions and diseases such as birth defect, cancer, cardiovascular disease, osteoporosis, neurodegenerative disorders and many more. To overcome these issue microbes mediated biofortification is a new and promising option for the bioavailibity of nutrient to plants. Biofortification is getting more attention to incraese phytoavialbility of micronutrients easpecially Fe, Zn, Mg, Se in the major food crops. Utilization of diverse types of microbes that promotes plant growth is becoming effective approach to substitute synthetic fertilizers, pesticides, and supplements. Microbes mobilize the nutrients by various mechanisms such as acidification, chelation, exchange reactions, and release of organic acids.