Biocrust-forming cyanobacteria inoculation to restore degraded soils from dryland ecosystems
Biocrust-forming cyanobacteria inoculation to restore degraded soils from dryland ecosystems

Author: José Raúl Román Fernández

Publisher: Universidad Almería

Published: 2021-03-12

Total Pages: 190

ISBN-13: 8413510554

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En las zonas áridas, la acción combinada del cambio climático y el aumento de la presión humana están causando una degradación acelerada de los ecosistemas. En este contexto, es necesario investigar nuevas estrategias de restauración que nos permitan mejorar las acciones de restauración en estas zonas. Para ello, en esta tesis se exploró el uso de biocostras, comunidades de organismos que colonizan los primeros centímetros del suelo y que viven en estrecha asociación con las partículas del suelo, para la recuperación de suelos degradados en ecosistemas áridos. De entre todos sus componentes, se investigó el potencial uso restaurador de la inoculación con especies de cianobacterias formadoras de biocostras, pues son los organismos que más potencial presentan para restaurar zonas áridas debido a sus condiciones fisiológicas adaptadas a ambientes extremos y su facilidad para ser aisladas y cultivadas ex situ. En concreto, se evaluó la viabilidad de diferentes especies nativas de cianobacterias para promover el desarrollo de una nueva biocostra que mejore las condiciones de los suelos degradados de zonas áridas, así como estrategias para la reducción del estrés ambiental en condiciones de campo. Los resultados de esta tesis constituyen un avance significativo en el uso de esta tecnología para recuperar suelos afectados por la degradación en ecosistemas áridos.

Molecular Aspects of Plant Beneficial Microbes in Agriculture
Molecular Aspects of Plant Beneficial Microbes in Agriculture

Author: Vivek Sharma

Publisher: Academic Press

Published: 2020-03-12

Total Pages: 454

ISBN-13: 0128184698

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Molecular Aspects of Plant Beneficial Microbes in Agriculture explores their diverse interactions, including the pathogenic and symbiotic relationship which leads to either a decrease or increase in crop productivity. Focusing on these environmentally-friendly approaches, the book explores their potential in changing climatic conditions. It presents the exploration and regulation of beneficial microbes in offering sustainable and alternative solutions to the use of chemicals in agriculture. The beneficial microbes presented here are capable of contributing to nutrient balance, growth regulators, suppressing pathogens, orchestrating immune response and improving crop performance. The book also offers insights into the advancements in DNA technology and bioinformatic approaches which have provided in-depth knowledge about the molecular arsenal involved in mineral uptake, nitrogen fixation, growth promotion and biocontrol attributes.

Aboveground-Belowground Linkages
Aboveground-Belowground Linkages

Author: Richard D. Bardgett

Publisher: Oxford University Press

Published: 2010-07-29

Total Pages: 312

ISBN-13: 0199546878

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Aboveground-Belowground Linkages provides the most up-to-date and comprehensive synthesis of recent advances in our understanding of the roles that interactions between aboveground and belowground communities play in regulating the structure and function of terrestrial ecosystems, and their responses to global change. It charts the historical development of this field of ecology and evaluates what can be learned from the recent proliferation of studies on the ecological and biogeochemical significance of aboveground-belowground linkages. The book is structured around four key topics: biotic interactions in the soil; plant community effects; the role of aboveground consumers; and the influence of species gains and losses. A concluding chapter draws together this information and identifies a number of cross-cutting themes, including consideration of aboveground-belowground feedbacks that occur at different spatial and temporal scales, the consequences of these feedbacks for ecosystem processes, and how aboveground-belowground interactions link to human-induced global change.