Identification of a Small Heat-shock Protein Associated with a Ras-mediated Signaling Pathway in Ectomycorrhizal Symbiosis PDF Download
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Author: Shiv Hiremath
Publisher:
ISBN:
Category : Ectomycorrhizal fungi
Languages : en
Pages : 12
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Book Description
Initiation, development, and establishment of a functional ectomycorrhiza involve a series of biochemical events mediated by a number of genes from the fungus as well as the host plant. We have identified a heat shock protein gene from Laccaria bicolor (Lbhsp) that appears to play a role in these events. The size and characteristics of Lbhsp suggest that it belongs to the family of small heat-shock proteins described in the literature. Nucleotide sequencing of an almost full length cDNA indicated that the Lbhsp mRNA is about 611 nucleotides long and codes for a single protein of ~ 17 kDa. Isolation and characterization of the Lbhsp gene showed that it was made up of three exons separated by two small introns. Southern analysis suggested that the L. bicolor genome contains at least two copies of the Lbhsp gene. Temporal expression analyses revealed that the gene is expressed within 4 to 12 hours after interaction with red pine roots. The yeast two-hybrid studies showed that the Lbhsp was closely associated with the ras gene (Lbras) described earlier. The data suggest that Lbhsp may play a supporting role in ras-mediated mycorrhizal signaling pathways during various stages of ectomycorrhizal development.
Author: Shiv Hiremath
Publisher:
ISBN:
Category : Ectomycorrhizal fungi
Languages : en
Pages : 12
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Book Description
Initiation, development, and establishment of a functional ectomycorrhiza involve a series of biochemical events mediated by a number of genes from the fungus as well as the host plant. We have identified a heat shock protein gene from Laccaria bicolor (Lbhsp) that appears to play a role in these events. The size and characteristics of Lbhsp suggest that it belongs to the family of small heat-shock proteins described in the literature. Nucleotide sequencing of an almost full length cDNA indicated that the Lbhsp mRNA is about 611 nucleotides long and codes for a single protein of ~ 17 kDa. Isolation and characterization of the Lbhsp gene showed that it was made up of three exons separated by two small introns. Southern analysis suggested that the L. bicolor genome contains at least two copies of the Lbhsp gene. Temporal expression analyses revealed that the gene is expressed within 4 to 12 hours after interaction with red pine roots. The yeast two-hybrid studies showed that the Lbhsp was closely associated with the ras gene (Lbras) described earlier. The data suggest that Lbhsp may play a supporting role in ras-mediated mycorrhizal signaling pathways during various stages of ectomycorrhizal development.
Author: Shiv Hiremath
Publisher:
ISBN:
Category : Ectomycorrhizal fungi
Languages : en
Pages : 12
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Book Description
Initiation, development, and establishment of a functional ectomycorrhiza involve a series of biochemical events mediated by a number of genes from the fungus as well as the host plant. We have identified a heat shock protein gene from Laccaria bicolor (Lbhsp) that appears to play a role in these events. The size and characteristics of Lbhsp suggest that it belongs to the family of small heat-shock proteins described in the literature. Nucleotide sequencing of an almost full length cDNA indicated that the Lbhsp mRNA is about 611 nucleotides long and codes for a single protein of ~ 17 kDa. Isolation and characterization of the Lbhsp gene showed that it was made up of three exons separated by two small introns. Southern analysis suggested that the L. bicolor genome contains at least two copies of the Lbhsp gene. Temporal expression analyses revealed that the gene is expressed within 4 to 12 hours after interaction with red pine roots. The yeast two-hybrid studies showed that the Lbhsp was closely associated with the ras gene (Lbras) described earlier. The data suggest that Lbhsp may play a supporting role in ras-mediated mycorrhizal signaling pathways during various stages of ectomycorrhizal development.
Author: Ajit Varma
Publisher: Springer Nature
ISBN: 3030362485
Category : Science
Languages : en
Pages : 360
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Book Description
This book provides an overview of the latest advances concerning symbiotic relationships between plants and microbes, and their applications in plant productivity and agricultural sustainability. Symbiosis is a living phenomenon including dynamic variations in the genome, metabolism and signaling network, and adopting a multidirectional perspective on their interactions is required when studying symbiotic organisms. Although various plant-microbe symbiotic systems are covered in this book, it especially focuses on arbuscular mycorrhiza (AM) symbiosis and root nodule symbiosis, the two most prevalent systems. AM symbiosis involves the most extensive interaction between plants and microbes, in the context of phylogeny and ecology. As more than 90% of all known species of plants have the potential to form mycorrhizal associations, the productivity and species composition, as well as the diversity of natural ecosystems, are frequently dependent upon the presence and activity of mycorrhizas. In turn, root nodule symbiosis includes morphogenesis and is formed by communication between plants and nitrogen-fixing bacteria. The biotechnological application of plant–microbe symbiosis is expected to foster the production of agricultural and horticultural products while maintaining ecologically and economically sustainable production systems. Designed as a hands-on guide, this book offers an essential resource for researchers and students in the areas of agri-biotechnology, soil biology and fungal biology.
Author: Vernon Ahmadjian
Publisher: John Wiley & Sons
ISBN: 9780471578857
Category : Science
Languages : en
Pages : 274
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Book Description
Not only an invaluable reference to what is known about lichen bionts and their interactions but also a guide to future studies. Compares various aspects of lichen-forming bionts with those of other fungi, algae and cyanobacteria. Features in-depth descriptions of culture methods. Includes over 1000 references representing a selective sampling in such subjects as air pollution, photosynthesis and respiration.
Author: Jean-Michel Mérillon
Publisher:
ISBN: 9783319194561
Category : Fungi
Languages : en
Pages :
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Book Description
Author: José Ramos
Publisher: Springer
ISBN: 3319253042
Category : Science
Languages : en
Pages : 381
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Book Description
This contributed volume reviews the recent progress in our understanding of membrane transport in yeast including both Saccharomyces cerevisiae and non-conventional yeasts. The articles provide a summary of the key transport processes and put these in a systems biology context of cellular regulation, signal reception and homeostasis. After a general introduction, readers will find review articles covering the mechanisms and regulation of transport for various substrates ranging from diverse nutrients to cations, water and protons. These articles are complemented by a chapter on extremophilic yeast, a chapter on the mathematical modelling of ion transport and two chapters on the role of transport in pathogenic yeasts and antifungal drug resistance. Each article provides both a general overview of the main transport characteristics of a specific substrate or group of substrates and the unique details that only an expert working in the field is able to transmit to the reader. Researchers and students of the topic will find this book to be a useful resource for membrane transport in yeast collecting information in one complete volume, which is otherwise scattered across many papers. This might also be interesting for scientists investigating other species in order to compare transport mechanisms with known functions in yeast with the cells on which they work.
Author: Simon Goddek
Publisher: Springer
ISBN: 3030159434
Category : Science
Languages : en
Pages : 620
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Book Description
This open access book, written by world experts in aquaponics and related technologies, provides the authoritative and comprehensive overview of the key aquaculture and hydroponic and other integrated systems, socio-economic and environmental aspects. Aquaponic systems, which combine aquaculture and vegetable food production offer alternative technology solutions for a world that is increasingly under stress through population growth, urbanisation, water shortages, land and soil degradation, environmental pollution, world hunger and climate change.
Author:
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages : 1844
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Book Description
Author: Gaspar Banfalvi
Publisher: Springer Science & Business Media
ISBN: 9400704283
Category : Medical
Languages : en
Pages : 348
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Book Description
The term “heavy metals” is used as a group name of toxic metals and metalloids (semimetals) causing contaminations and ecotoxicity. In strict chemical sense the density of heavy metals is higher than 5 g/cm3. From biological point of view as microelements they can be divided into two major groups. a. For their physiological function organisms and cells require essential microelements such as iron, chromium (III), cobalt, copper, manganese, molidenium, zinc. b. The other group of heavy metals is toxic to the health or environment. Of highest concern are the emissions of As, Cd, Co, Cu, Hg, Mn, Ni, Pb, Sn, Tl. The toxicity of heavy metals is well known at organizational level, while less attention has been paid to their cellular effects. This book describes the toxicity of heavy metals on microorganisms, yeast, plant and animal cells. Other chapters of the book deal with their genotoxic, mutagenic and carcinogenic effects. The toxicity of several metals touch upon the aspects of environmental hazard, ecosystems and human health. Among the cellular responses of heavy metals irregularities in cellular mechanisms such as gene expression, protein folding, stress signaling pathways are among the most important ones. The final chapters deal with biosensors and removal of heavy metals. As everybody is eating, drinking and exposed to heavy metals on a daily basis, the spirit of the book will attract a wide audience.
Author: Mahendra Rai
Publisher: Springer Science & Business Media
ISBN: 3642151965
Category : Technology & Engineering
Languages : en
Pages : 459
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Book Description
Ectomycorrhizal fungi play multifunctional roles during symbioses with higher plants. They can serve as bioprotectors, biofertilizers, bioremediators and stress indicators. Further, they are the true “mycoindicators” of forest ecosystems, where an enormous diversity of ectomycorrhizal fungi can be found. Some ectomycorrhizal fungi also produce edible sporocarps, i.e., fruiting bodies, which are important for the food industry. Ectomycorrhizal fungi also produce various metal chelating molecules, which are of remarkable biotechnological significance and which also secrete useful secondary metabolites. Molecular approaches are required for the identification and differentiation of fungi forming symbioses with higher plants, while molecular tools are important to understand how genes are expressed during symbiosis with higher plants. Students, researchers and teachers of botany, mycology, microbiology, forestry, and biotechnology will find a valuable source of information in this Soil Biology volume.
