Evaluation of salinity tolerance in seedlings of sugar beet (Beta vulgaris L.) cultivars using proline, soluble sugars and cation accumulation criteria

Wu, Guo-Qiang; Liang, Na; Feng, Rui-Jun; Zhang, Jingjing

doi:10.1007/s11738-013-1298-6

Cited by 80 publications

(74 citation statements)

References 33 publications

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“…Fresh weight (FW) was immediately determined and then samples were dried in an oven at 80°C for 48 h to obtain dry weight. Water content (WC) was estimated using the following formula as described by Wu et al (2013):…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Effect of salinity on seed germination, seedling growth, and inorganic and organic solutes accumulation in sunflower (Helianthus annuus L.)

Wu¹,

Qi²,

Shui³

2015

PLANT SOIL ENVIRON

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Section: Methodsmentioning

confidence: 99%

“…Na + and K + concentrations were measured according to the method described by Wu et al (2013). Na + /K + ratios were calculated according to the method of Yue et al (2012).…”

Section: Methodsmentioning

confidence: 99%

Effect of salinity on seed germination, seedling growth, and inorganic and organic solutes accumulation in sunflower (Helianthus annuus L.)

Wu¹,

Qi²,

Shui³

2015

PLANT SOIL ENVIRON

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“…Seeds were surface sterilized for 1 min in 75% ethanol (volume/ volume) and rinsed 3 times with distilled water, soaked in distilled water for 1 d and then germinated at 25°C in the dark for 3 d (Wu et al 2013). Uniform seedlings were carefully transplanted to plastic containers (5 × 5 × 5 cm; two seedlings container -1 ) filled with vermiculite irrigated with 500 mL of the modified Hoagland nutrient solution containing 2.5 mM potassium nitrate (KNO 3 ), 1 mM ammonium biphosphate (NH 4 H 2 PO 4 ), 0.5 mM calcium nitrate (Ca(NO 3 ) 2 ), 0.5 mM magnesium sulfate (MgSO 4 ), 60 µM ferric citrate (Fe-Citrate), 92 µM boric acid (H 3 BO 3 ), 18 µM manganese chloride (MnCl 2 · 4H 2 O), 1.6 µM zinc sulfate (ZnSO 4 · 7H 2 O), 0.6 µM copper sulfate (CuSO 4 · 5H 2 O), and 0.7 µM ammonium molybdate ((NH 4 ) 6 Mo 7 O 24 · 4H 2 O).…”

Section: Plant Materials Growth Conditions and Treatmentsmentioning

confidence: 99%

“…Sugar beet (Beta vulgaris L.) is an important sugar crop supplying approximately 35% of the world's sugar, and it is widely cultivated in arid and semi-arid regions of northern China (Wu et al 2013). In many regions where sugar beet production is largely dependent on rainfall, yield losses due to drought are common (Ober and Rajabi 2010).…”

Section: Introductionmentioning

confidence: 99%

Assessment of drought tolerance in seedlings of sugar beet (Beta vulgarisL.) cultivars using inorganic and organic solutes accumulation criteria

Wang

et al. 2014

Soil Science and Plant Nutrition

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Drought is a major environmental factor limiting the production of crops. Drought tolerance of sugar beet (Beta vulgaris L.) cultivars in terms of growth and inorganic and organic solute accumulation was analyzed in this study. Four-week-old seedlings of three cultivars, "Gantang7", "SD13829" and "ST21916", differing in drought tolerance, were treated with different degrees of drought stress. Plant shoots and roots were harvested at 5 d after stress and subjected to analysis. Drought significantly reduced shoot fresh weight and water content in the three cultivars, though the least reduction was found in "ST21916". Either decrease or no change in sodium (Na + ) and potassium (K + ) concentrations was observed in the three cultivars as an effect of drought, whereas a higher root Na + and a lower root K + concentration was noted in "Gantang7". Root calcium (Ca 2+ ) concentration significantly increased in "Gantang7" exposed to moderate and severe drought. Severe drought also caused a significant increase in the proline level in "SD13829" but not in "Gantang7" and "ST21916". Under drought stress, soluble sugar concentrations significantly increased in both "Gantang7" and "SD13829" whilst remaining unchanged in "ST21916". It is clear that Na + , K + and soluble sugars are major contributors to osmotic adjustment (OA), while Ca 2+ and proline have minor contributions to OA in all three cultivars. According to our comprehensive assessment of drought tolerance, it is shown that "ST21916" is more tolerant to drought than the other two cultivars. Therefore, our results suggest that "ST21916" may be more suitable for planting in arid and semi-arid regions.

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“…Thus, proline content in plant tissues was used as a marker-assisted selection molecule in some breeding programs that endeavored to improve salinity and drought tolerance in plants (Flowers and Flowers, 2005;Ma et al, 2007;Ashraf and Foolad, 2013;Wu et al, 2013). In the present study, I determined whether proline accumulation in the date palm tree was specifically correlated to drought, and high salinity conditions, or was a general response to abiotic stresses.…”

Section: Introductionmentioning

confidence: 96%

Short Communication Proline accumulation is a general response to abiotic stress in the date palm tree (Phoenix dactylifera L.)

Yaish¹

2015

Genet. Mol. Res.

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ABSTRACT. Plants exposed to certain abiotic stress conditions tend to produce the amino acid proline, which acts as an active osmolyte, a metal chelator, an antioxidant, and a signaling molecule. There is increasing evidence that proline accumulates in plants due to a wide range of abiotic stress, in particular high soil salinity and drought. Therefore, proline content is often used as a marker-assisted breeding tool aimed at improving drought and salinity tolerance. In this study, it was investigated whether proline accumulation in date palm (Phoenix dactylifera L.) seedlings occurs solely due to high salinity and drought stresses or due to other unspecified abiotic stresses, including salinity and salinity shock, drought, extreme temperatures, and abscisic acid. The free proline assays revealed that this amino acid over-accumulated in the roots and leaves of each stresstreated plant, and was remarkably high when leaves were exposed to suboptimum temperatures and salinity stress. These results indicate that the production of proline is a common response to various abiotic stresses and its differential accumulation cannot be used as a molecular marker in date palm breeding programs aimed at improving drought or salinity 9943-9950 (2015) tolerance traits in date palms. This conclusion is consistent with the theory that the molecular outcomes of abiotic stresses are often non-specific.

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Evaluation of salinity tolerance in seedlings of sugar beet (Beta vulgaris L.) cultivars using proline, soluble sugars and cation accumulation criteria

Cited by 80 publications

References 33 publications

Effect of salinity on seed germination, seedling growth, and inorganic and organic solutes accumulation in sunflower (Helianthus annuus L.)

Effect of salinity on seed germination, seedling growth, and inorganic and organic solutes accumulation in sunflower (Helianthus annuus L.)

Assessment of drought tolerance in seedlings of sugar beet (Beta vulgarisL.) cultivars using inorganic and organic solutes accumulation criteria

Short Communication Proline accumulation is a general response to abiotic stress in the date palm tree (Phoenix dactylifera L.)

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