Results 61 to 70 of about 38,027 (193)

Diversity of N2-fixing cyanobacteria from Andalusian paddy fields and analysis of their potential as bioinoculants [PDF]

open access: yes, 2019
The marshes of the Guadalquivir River contain the largest area of rice cultivation in Spain, where more than 40,000 ha are used every year for rice production.
Alves Martínez , P.   +4 more
core  

Seasonal acclimation of photosynthetic thermal tolerances in six woody tropical species along a thermal gradient

open access: yesFunctional Ecology, Volume 38, Issue 11, Page 2493-2505, November 2024.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Extreme heat events are becoming increasingly common, and the short‐term acclimation of photosynthesis will have a large impact on plant performance. Trees in lowland tropical forests, which are hypothesized to have limited abilities to tolerate rising temperatures, may
Alyssa T. Kullberg, Kenneth J. Feeley
wiley   +1 more source

Efectos de medicamentos homeopáticos en indicadores fisiológicos y del desarrollo inicial del frijol Yorimón (Vigna unguiculata L., Walp.)

open access: yesTerra Latinoamericana, 2020
La medicina homeopática es una disciplina de la ciencia médica universal, con aplicación creciente en humanos, animales y plantas. La aceptación de la homeopatía agrícola se incrementa por la inocuidad y probada efectividad de sus medicamentos ...
José Manuel Mazón-Suástegui   +5 more
doaj   +1 more source

Biología General [PDF]

open access: yes, 2011
Documento PDF, 120 páginasGuía de estudio para el curso Biología General, código 502, que imparte la Escuela de Ciencias Exactas y Naturales de la UNED.Universidad Estatal a Distancia de Costa ...
Rodríguez Calvo, Magaly   +1 more
core  

Drought effects in Mediterranean forests are not alleviated by diversity‐driven water source partitioning

open access: yesJournal of Ecology, Volume 112, Issue 9, Page 2107-2122, September 2024.
Tree species diversity promotes below‐ground water source partitioning in mixed oak and pine stands, potentially reducing competition for water in more diverse ecosystems. Yet, these results show that it is insufficient to buffer the adverse impacts of severe droughts on above‐ground tree carbon and water use, leading to higher water stress, especially
Eugénie Mas   +5 more
wiley   +1 more source

Amino Acid Transporters and Release of Hydrophobic Amino Acids in the Heterocyst-Forming Cyanobacterium Anabaena sp. Strain PCC 7120

open access: yesLife, 2015
Anabaena sp. strain PCC 7120 is a filamentous cyanobacterium that can use inorganic compounds such as nitrate or ammonium as nitrogen sources. In the absence of combined nitrogen, it can fix N2 in differentiated cells called heterocysts.
Rafael Pernil   +4 more
doaj   +1 more source

Análisis del abordaje de la respiración celular en textos escolares para el Ciclo Básico Unificado [PDF]

open access: yes, 2008
Los libros de texto son un recurso didáctico ampliamente utilizado para la enseñanza de las ciencias. Dada su importante influencia como vía de acceso a los contenidos científicos, resulta imperioso analizar el modo en que éstos son abordados, para ...
Ferreiro, Gabriela, Occelli, Maricel
core  

Transcriptomic characterization of the response to a microalgae extract in Arabidopsis thaliana and Solanum lycopersicum

open access: yesJournal of the Science of Food and Agriculture, Volume 104, Issue 10, Page 5789-5798, 15 August 2024.
Abstract BACKGROUND The steady world population growth and the current climate emergency crisis demand the development of sustainable methods to increase crop performance and resilience to the abiotic and biotic stresses produced by global warming.
Christina Arvanitidou   +5 more
wiley   +1 more source

Concepto fotosíntesis en profesores desde el análisis de sus modelos mentales [PDF]

open access: yes, 2017
El presente estudio es una aproximación a los modelos mentales sobre el concepto fotosíntesis en cuatro profesores que enseñan ciencias naturales, en 5º y 11° de Educación Básica y Media respectivamente, de escuelas estatales de Barranquilla, Colombia.
Acosta, M.
core   +1 more source

La aplicación de nanoparticulas de SiO2 como pretratamiento disminuye el impacto de la sequía en la performance fisiológica de Prunus mahaleb (Rosaceae) [PDF]

open access: yes, 2018
La aplicación de nanoparticulas de SiO2 como pretratamiento disminuye el impacto de la sequía en la performance fisiológica de Prunus mahaleb (Rosaceae).
Ashkavand, Peyman   +7 more
core   +2 more sources

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