نتایج جستجو برای: high salinity

تعداد نتایج: 2077138  

2018
Fangli Wu Zhe Xie Yawen Lan Sam Dupont Meng Sun Shuaikang Cui Xizhi Huang Wei Huang Liping Liu Menghong Hu Weiqun Lu Youji Wang

With the release of large amounts of CO2, ocean acidification is intensifying and affecting aquatic organisms. In addition, salinity also plays an important role for marine organisms and fluctuates greatly in estuarine and coastal ecosystem, where ocean acidification frequently occurs. In present study, flow cytometry was used to investigate immune parameters of haemocytes in the thick shell mu...

ژورنال: علوم آب و خاک 2010
رئیسی , فایز , محمدی, جهانگرد , بویراحمدی, مژگان ,

Similar to plants, soil salinity may reduce microbial growth and activities in different ways. The aim of this study was to determine the effects of different levels of salinity on some microbial indices in the presence and absence of plant's living roots. In this study, five levels of salinity using NaCl, CaCl2, MgCl2 and KCl and three soil media (soil with no plant, soil cultivated with wheat...

2017
Hagen M Gegner Maren Ziegler Nils Rädecker Carol Buitrago-López Manuel Aranda Christian R Voolstra

The endosymbiosis between dinoflagellate algae of the genus Symbiodinium and stony corals provides the foundation of coral reef ecosystems. Coral bleaching, the expulsion of endosymbionts from the coral host tissue as a consequence of heat or light stress, poses a threat to reef ecosystem functioning on a global scale. Hence, a better understanding of the factors contributing to heat stress sus...

2018
Harini Santhanam

Introduction: We investigated the magnitude and duration of desalination of Pulicat—a coastal lagoon ecosystem connected to the Bay of Bengal on the South-eastern coast of India—during the 2015 South India flood event which was a period of high-magnitude precipitation and riverine flooding. Methods: We estimated freshwater runoff into the lagoon using flow accumulation models for a period of 55...

Journal: :Saline Systems 2009
Ashish Kumar Srivastava Poonam Bhargava Arvind Kumar Lal Chand Rai Brett A Neilan

BACKGROUND Salinity is known to affect almost half of the world's irrigated lands, especially rice fields. Furthermore, cyanobacteria, one of the critical inhabitants of rice fields have been characterized at molecular level from many different geographical locations. This study, for the first time, has examined the molecular diversity of cyanobacteria inhabiting Indian rice fields which experi...

2017
Mary Doherty Patricia L. Yager Mary Ann Moran Victoria J. Coles Caroline S. Fortunato Alex V. Krusche Patricia M. Medeiros Jérôme P. Payet Jeffrey E. Richey Brandon M. Satinsky Henrique O. Sawakuchi Nicholas D. Ward Byron C. Crump

Spatial and temporal patterns in microbial biodiversity across the Amazon river-ocean continuum were investigated along ∼675 km of the lower Amazon River mainstem, in the Tapajós River tributary, and in the plume and coastal ocean during low and high river discharge using amplicon sequencing of 16S rRNA genes in whole water and size-fractionated samples (0.2-2.0 μm and >2.0 μm). River communiti...

Journal: :Theoretical population biology 2012
Jiang Jiang Daozhou Gao Donald L DeAngelis

Ecotones represent locations where vegetation change is likely to occur as a result of climate and other environmental changes. Using a model of an ecotone vulnerable to such future changes, we estimated the resilience of the ecotone to disturbances. The specific ecotone is that between two different vegetation types, salinity-tolerant and salinity-intolerant, along a gradient in groundwater sa...

Journal: :Remote Sensing 2014
Amal Allbed Lalit Kumar Priyakant Sinha

Soil salinity is one of the most damaging environmental problems worldwide, especially in arid and semi-arid regions. An integrated approach using remote sensing in addition to various statistical methods has shown success for developing soil salinity prediction models. The aim of this study was to develop statistical regression models based on remotely sensed indicators to predict and map spat...

2013
Shu-Ye Jiang Ali Ma Rengasamy Ramamoorthy Srinivasan Ramachandran

Expression profiling is one of the most important tools for dissecting biological functions of genes and the upregulation or downregulation of gene expression is sufficient for recreating phenotypic differences. Expression divergence of genes significantly contributes to phenotypic variations. However, little is known on the molecular basis of expression divergence and evolution among rice geno...

To evaluate the effect of salinity stress and Zinc application on grain filling of three barley cultivars and some physiological traits this this experiment was arranged as a split block in a randomized complete block design with three replications at the Esfahan (Rodasht) salinity research station (2013-14). Three water quality treatments including (2, 10 and 18 dS/m) were evaluated in vertica...

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