نتایج جستجو برای: diverse salinity

تعداد نتایج: 184513  

Journal: :Ecology letters 2012
Leigh C Latta Lawrence J Weider John K Colbourne Michael E Pfrender

One route to genetic adaptation in a novel environment is the evolution of ecological generalisation. Yet, identifying the cost that a generalist pays for the increased breadth of tolerance has proven elusive. We integrate phenotypic assays with functional genomics to understand how tolerance to a salinity gradient evolves, and we test the relationship between the fitness cost of this generalis...

2018
Swati Almeida-Dalmet Carol D Litchfield Patrick Gillevet Bonnie K Baxter

The authors wish to make the following changes to their paper [1].[...].

2017
Mohamed A. El-Esawi Hosam O. Elansary Nader A. El-Shanhorey Amal M. E. Abdel-Hamid Hayssam M. Ali Mohamed S. Elshikh

Salinity stress as a major agricultural limiting factor may influence the chemical composition and bioactivity of Rosmarinus officinallis L. essential oils and leaf extracts. The application of salicylic acid (SA) hormone may alleviate salinity stress by modifying the chemical composition, gene expression and bioactivity of plant secondary metabolites. In this study, SA was applied to enhance s...

Journal: :Tree physiology 2016
Rodrigo Méndez-Alonzo Jorge López-Portillo Coral Moctezuma Megan K Bartlett Lawren Sack

Salinity tolerance in plant species varies widely due to adaptation and acclimation processes at the cellular and whole-plant scales. In mangroves, extreme substrate salinity induces hydraulic failure and ion excess toxicity and reduces growth and survival, thus suggesting a potentially critical role for physiological acclimation to salinity. We tested the hypothesis that osmotic adjustment, a ...

Journal: :Saudi journal of biological sciences 2015
Elsayed Fathi Abd Allah Abeer Hashem Abdulaziz Abdullah Alqarawi Ali Hassan Bahkali Mona S Alwhibi

Pot experiments were conducted to evaluate the damaging effects of salinity on Sesbania sesban plants in the presence and absence of arbuscular mycorrhizal fungi (AMF). The selected morphological, physiological and biochemical parameters of S. sesban were measured. Salinity reduced growth and chlorophyll content drastically while as AMF inoculated plants improved growth. A decrease in the numbe...

2015
Rick Lumpkin

Surface salinity variations and processes affecting surface salinity in the high-salinity region of the subtropical North Atlantic (the SPURS-1 area) are investigated by combining data from in situ observations and satellite remote-sensing measurements. On temporal average, the surface freshwater flux term (evaporation minus precipitation) in the SPURS-1 region increases mixed-layer salinity. O...

Journal: Desert 2020
H. Azarnivand, H.R. Naseri, M. Jafari, M.A. Zare chahoki Sh. Yousefi Khanghah

Rangelands are very diverse, and they spread from low vegetation desert areas to those with more rainfall and more cover In saline and desert areas, there are many restrictions on vegetation establishment, hence the use of amendments. The study area is located south of Nazarabad city in Alborz province, Iran. In this study, different amendments, such as mineral biochar, arbuscular mycorrhiza fu...

Journal: :Environmental toxicology and chemistry 2003
John E Weinstein

The effect of salinity on the photoinduced toxicity of waterborne fluoranthene to larvae of the grass shrimp (Palaemonetes pugio) and tubificid oligochaete worms (Monopylephorus rubroniveus) was studied in a laboratory system under simulated sunlight. In the grass shrimp toxicity tests, five concentrations of fluoranthene (0, 3.6, 7.3, 13.8, and 29.0 microg/L) and four salinities (6.9, 14.5, 21...

2016
Larry P. Atkinson Chester E. Grosch

Interannual salinity variations in North Atlantic Subtropical Mode Water (STMW) are well known although the cause is less well understood. Attempts to model local salinity variation with local evaporation and precipitation have not been successful and some authors invoke advection of low salinity water as the cause. Examination of the STMW and North American river runoff data suggests that runo...

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