Document Details

Document Type : Article In Journal 
Document Title :
Increasing NaCI- Salt Tolerance ora Halophytic Plant
Increasing NaCI- Salt Tolerance ora Halophytic Plant
 
Subject : Increasing NaCI- Salt Tolerance ora Halophytic Plant 
Document Language : English 
Abstract : Through biological inoculation technology, pot greenhouse experiments were conducted in attempt to increase salinity tolerance of a halophytic plants; Phragmites australis; by using arbuscular mycorrhizal (A11) fungus Glomus fasciculatum isolated from saline soil. Mycorrhizal and non-mycorrhizal plants were exposed to 0.0,50, 100, 150, 200, 250 and 300 mM ofNaCl. Plant growth was significantly stimulated at lower salinity (0 and 50 mMNaCI), but sharply decreased at higher salinity concentration (250 and 300 mM NaCI) but AM plants still much higher than that of non-Alvl one. A positive correlation was observed between plant growth and its level of succulence. Sodium ions (Na") were greatly accumulated inPhragmites plants by rising salinity levels however, AM plants accumulate more Na' ions in roots than that in shoots. NaCl salt-stress stimulated the levels of organic solutes such as soluble sugars and glycinebetaine. Arbuscular mycorrhizal plants significantly had higher levels of these solutes than that of non-Alvl. The results also revealed that the increase in salinity generated a decrease in water potential and osmotic potential experimented plants, with this decrease being lower in AM salinity - stressed plants. Mycorrhization also had positive effects on turger potential and osmotic adjustment of salinity - stressed plants. It is evident that amelioration of salt stress concentrations by mycorrhizal association can be related to improved osmotic adjustment but independent of salt uptake of plants. Thus the results indicated that the mycorrhizal symbiosis had a beneficial effect on the water status, accumulation of osmotica and growth of Phragmites australis plants under salinity - stress conditions 
ISSN : 1319-0989 
Journal Name : Arts and Humanities Journal 
Volume : 1 
Issue Number : 2 
Publishing Year : 1426 AH
2006 AD 
Article Type : Article 
Added Date : Monday, January 24, 2011 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
صالح محمد القرنيalqarni, saleh muhammedInvestigatorDoctorate 

Files

File NameTypeDescription
 28701.pdf pdf 

Back To Researches Page