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Full-Text Articles in Life Sciences

Invasion Ecology And Response To Fire Of The Nonnative Fern Lygodium Microphyllum In The South Florida Everglades, Nicole Sebesta Apr 2021

Invasion Ecology And Response To Fire Of The Nonnative Fern Lygodium Microphyllum In The South Florida Everglades, Nicole Sebesta

FIU Electronic Theses and Dissertations

Lygodium microphyllum (Old World Climbing Fern (OWCF)) is a climbing fern native to tropical and subtropical regions of Australia, Asia, and Africa. First introduced to Florida as an ornamental in the 1960s, the fern has become a serious invasive in numerous Florida habitats, severely degrading native herbaceous and woody vegetation and altering fire behavior. One area with the greatest increase in OWCF cover is the sawgrass marsh of southern Everglades National Park (ENP), where prescribed fire is used for both maintenance of sawgrass marshes and management of OWCF infestations. However, the efficacy of OWCF control using fire in this habitat …


Investigating The Behavioral Response Of Lampsilis Ovata To Various Salinity Conditions, Victoria Good May 2020

Investigating The Behavioral Response Of Lampsilis Ovata To Various Salinity Conditions, Victoria Good

Undergraduate Honors Theses

The Pocket-book mussel, Lampsilis ovata, is a native freshwater bivalve species that is endemic to North America. The salinity tolerance of this species is of interest because anthropogenic salinization events and climate change factors threaten their natural freshwater habitats. Furthermore, the invasive freshwater bivalve species Corbicula fluminea has been shown to display significant salinity tolerance, which may lead to negative competitive interactions with native freshwater bivalve species if the salinization of freshwater habitats exceeds thresholds beyond which native species can effectively cope. It was hypothesized that L. ovata would be sensitive to salinity conditions above 1 g/L and respond …


The Effect Of Salt Stress On Antioxidative Enzymes And Proline Content Of Two Turkish Tobacco Varieties, Özge Çeli̇k, Çi̇men Atak Jan 2012

The Effect Of Salt Stress On Antioxidative Enzymes And Proline Content Of Two Turkish Tobacco Varieties, Özge Çeli̇k, Çi̇men Atak

Turkish Journal of Biology

The aim of this study was to compare the salinity tolerances of 2 oriental tobacco varieties (İzmir Özbaş and Akhisar 97). Salinity stress experiments were performed under both in vitro and in vivo conditions. Seedlings of each variety were subjected to 0, 50, 100, 150, 200, 250, 300, and 350 mM NaCl. Photosynthetic pigment levels, lipid peroxidation rate, total protein content, antioxidant enzyme activities, and proline concentrations were determined for seedlings treated with salt for 14 days. The Akhisar 97 variety was found to be more sensitive to salinity stress than the İzmir Özbaş variety. Although proline is thought to …