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Full-Text Articles in Life Sciences
Screening For Endophytic Actinobacteria To Enhance Growth And Salinity Tolerance Of Tomato Plants In The United Arab, Amira Hamdy Hassan
Screening For Endophytic Actinobacteria To Enhance Growth And Salinity Tolerance Of Tomato Plants In The United Arab, Amira Hamdy Hassan
Theses
Salinity is one of the most decisive environmental factors limiting the productivity of crop plants, mainly in arid and semi-arid regions. An eco-friendly technology can be used to boost crop production in saline areas by using plant growth-bacteria. Endophytic actinobacteria that produce the enzyme 1-Aminocyclopropane-1-Carboxylic acid (ACC) Deaminase (ACCD) can modulate the levels of Ethylene (ET) in plants to reduce the effect of abiotic stresses including high salt stress. The main objectives of this study were to: (1) Evaluate endophytic actinobacterial isolates from healthy tomato plants cultivated in the UAE that are capable of producing ACCD in vitro; (2) …
The Use Of Actinobacteria To Improve The Efficacy Of Phytoremediation Of Heavy Metal-Polluted Soils In The United Arab Emirates, Fatima Abdulmoneim Hussain
The Use Of Actinobacteria To Improve The Efficacy Of Phytoremediation Of Heavy Metal-Polluted Soils In The United Arab Emirates, Fatima Abdulmoneim Hussain
Theses
In an effort to gain the advantages provided by actinobacterial enzyme (1- aminocyclopropane-1-carboxylic acid) (ACC) deaminase (ACCD) in the phytoremediation of heavy metals from the environment, the ability of native actinobacteria with ACC deaminase activity to promote the growth of Bermuda grass (Cynodon dactylon L.) in soils contaminated with nickel nitrate was evaluated under greenhouse conditions. This enzyme hydrolyzes (ACC), the immediate biosynthetic precursors of the hormone ethylene (ET) in plant tissues to ammonia and α keto-butyrate. The main objectives of this study were: (1) Isolating beneficial native heavy metal-tolerant actinobacteria from the United Arab Emirates (UAE) contaminated soil capable …
Rhizosphere-Competent Actinobacterial Isolates With Acc Deaminase Activity Alleviate Salt Stress In Tomato Plants In The Uae, Alaa Ahmed Abbas Elbadawi
Rhizosphere-Competent Actinobacterial Isolates With Acc Deaminase Activity Alleviate Salt Stress In Tomato Plants In The Uae, Alaa Ahmed Abbas Elbadawi
Biology Theses
Tomato (Solanum lycopersicum) is one of the most popular vegetables in the world, including the United Arab Emirates (UAE). Salinity is a global menace to plant growth and development, causing significant economic losses to tomato and other crop plants. It is well-known that 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase (ACCD) can increase plant tolerance to environmental stresses. This can be attributed to the increased activity of the enzyme ACCD, which breaks down ACC [the immediate precursor of ethylene (ET)] to ammonia and α-ketobutyrate, to lower the overproduction of ET levels in planta and to reduce the damages caused …
1. Microarray Analysis Identifies Potential Genes Associated With Botrytis Cinerea And Hormonal Stresses., Kenna Marie Whitley
1. Microarray Analysis Identifies Potential Genes Associated With Botrytis Cinerea And Hormonal Stresses., Kenna Marie Whitley
Biology Theses
Biotic and abiotic stresses critically influence plant survival and growth; survival depends on the ability to correctly sense and react to their environment. Certain environmental stresses must be overcome through careful manipulation of internal levels, and of the resulting signaling cascades. Hormones signaling networks and the crosstalk among each respective hormone signaling pathway are principle for response mediation via transcriptional reprogramming or altered signaling pathways. The long-term objective is to determine how plants sense biotic stresses, and how hormone signaling networks control and direct plant responses to the fungal pathogen Botrytis cinerea. This research aims to identify commonly regulated genes …