000			02636cab a2200301Ia 45 0
001			u211444
003			SIRSI
008			101219s2015 ua ss b eng d
040			_aEAL
041			_aeng _bara
090			_aART AUJAS V23 No1 10
100	1		_aSrour, Hany A. M.
240	1	0	_aArab universities journal of agricultural sciences, 2015 v. 23(1) _h[electronic resource].
245	1	0	_aExogenous application of glycinebetaine improves antioxidant system in green bean (Phaseolus vulgaris) seedlings under salinity stress _h[electronic resource].
246	1	5	_aالتطبيق الخارجي للجليسين بيتايين لتحسين النظام المضاد للأكسدة في بادرات الفاصوليا (phaseolus vulgaris) تحت ظروف اجهاد الملوحة
300			_ap.111-119
504			_aIncludes references.
520			_aSalt stresses collectively are responsible for many crop losses worldwide especially salt - sensitive plants. The present study investigates the roles of exogenous application of glycinebetaine (GB, 5 mM) in improving salt stress tolerance in salt sensitive green bean seedlings. Salt stresses (45 mM NaCl for one week) significantly reduced leaf relative water (RWC) and chlorophyll (chi) content and increased percentage of electrolyte leakage, endogenous Proline and lipid peroxidation. Activities of peroxidase(PX), ascorbate peroxidae (APX), superoxide dismutase (SOD), and catalase (CAT), were significantly increased in shoots and roots of green bean seedlings subjected to salt stress. Exogenous application of GB improves salt tolerance of green been seedlings as shown by increased RWC and chlorophyll contents in leaves and reduced percentage of electrolyte leakage, lipid peroxidation and proline content. Under salinity stress condition, GB application decreased the activities of PX, CAT, APX and SOD in seedling shoots, whereas, it increased the activities of CAT and AP in roots. The result suggests that exogenous application of GB increased green bean seedlings' tolerance to salt-induced oxidative damage by upregulating their antioxidant defense system where this compatible solute protect plant cell against salinity stress. (Received 14 October,
546			_aSummary in Arabic.
650		0	_aGreen bean _xEffect of salt on.
650		0	_aSalinity.
650		0	_aAntioxidants.
650		0	_aBetaine.
650		0	_aSalt-tolerant crops.
773	0		_tArab Universities Journal of Agricultural Sciences. _g2015.v.23(1) _x1110-2675 _7nnas _wu118374
856	4	0	_uhttp://nile.enal.sci.eg/EALE/2015/AUJAS/2315/1/111.pdf _zFull Text Article.
596			_a1
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