Effect of salinity on growth, photosynthesis and mineral composition in leguminous plant Alhagi pseudoalhagi (Bieb.)

CORC > 新疆生态与地理研究所 > 中国科学院新疆生态与地理研究所 > 中国科学院新疆生态与地理研究所(2010年以前数据)

	Effect of salinity on growth, photosynthesis and mineral composition in leguminous plant Alhagi pseudoalhagi (Bieb.)
	Kurban ; H ; Saneoka ; Nehira ; K ; Adilla ; R ; Premachandra ; GS ; Fujita
刊名	SOIL SCIENCE AND PLANT NUTRITION
	1999
卷号	45 期号:4 页码:851-862
关键词	GAS-EXCHANGE PROPERTIES BARLEY SEEDLINGS SALT TOLERANCE NITROGEN-FIXATION CALCIUM DEFICIENCY ION CONTENT STRESS SODIUM CHLORIDE NITRATE
ISSN号	0038-0768
通讯作者	Kurban, H, Xinjiang Agr Univ, Fac Basic Biol Sci, Urumqi 830052, Peoples R China
中文摘要	Leguminous plant Alhagi pseudoalhagi was subjected to 0 (control), 50, 100, and 200 mM NaCl treatments during a 30 d period to examine the mechanism of tolerance to salinity. Plant dry weight, net CO2 assimilation rate, leaf stomatal conductance, intercellular CO2 concentration, and solute concentration in leaves, stems, and roots were determined. Total plant weight in the 50 mM treatment was 170% of that of the control after 10 d of treatment. Total plant weight was lower in the 100 and 200 mM treatments than in the control. The leaf CO2 assimilation rate was approximately 150% of that of the control in the 50 mM treatment, but was not affected significantly by 100 mM of NaCl, while it was reduced to about 60% of that the control in the 200 mM treatment. Similarly stomatal conductance was consistent with the CO2 assimilation rate regardless of the treatments. Intercellular CO2 concentration was lower in the NaCl-treated plants than in the control. Changes in CO2 assimilation rate due to salinity stress could be mainly associated with stomatal conductance and the carboxylation activity. Although the leaf Na+ concentration increased to 900 mmol kg(-1) dry weight in the 200 mM treatment compared to 20 mmol kg(-1) in the control, the plants did not die and continued to grow at such a high leaf Na+ concentration. Uptake and transportation rates of Na+, Ca2+, Mg2+, and K+, and the accumulation of N were promoted by 50 mM NaCl. Na+ uptake rate continued to increase in response to external NaCl concentration. However, the uptake and transportation rates of Ca2+, Mg2+, and K+ behaved differently under 100 and 200 mM salt stress. The results suggest that A. pseudoalhagi is markedly tolerant to salinity due mainly to its photosynthetic activity rather than to other physiological characteristics.
学科主题	植物生理学
收录类别	SCI
公开日期	2011-08-19
内容类型	期刊论文
源URL	[http://ir.xjlas.org/handle/365004/10654]
专题	新疆生态与地理研究所_中国科学院新疆生态与地理研究所(2010年以前数据)
推荐引用方式 GB/T 7714	Kurban,H,Saneoka,et al. Effect of salinity on growth, photosynthesis and mineral composition in leguminous plant Alhagi pseudoalhagi (Bieb.)[J]. SOIL SCIENCE AND PLANT NUTRITION,1999,45(4):851-862.
APA	Kurban.,H.,Saneoka.,Nehira.,K.,...&Fujita.(1999).Effect of salinity on growth, photosynthesis and mineral composition in leguminous plant Alhagi pseudoalhagi (Bieb.).SOIL SCIENCE AND PLANT NUTRITION,45(4),851-862.
MLA	Kurban,et al."Effect of salinity on growth, photosynthesis and mineral composition in leguminous plant Alhagi pseudoalhagi (Bieb.)".SOIL SCIENCE AND PLANT NUTRITION 45.4(1999):851-862.