Genotypic difference in salinity tolerance in quinoa is determined by differential control of xylem Na+ loading and stomatal density

Shabala, Sergey; Hariadi, Yuda Cahyoargo; Jacobsen, Sven‐Erik

doi:10.1016/j.jplph.2013.01.014

Cited by 213 publications

(171 citation statements)

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“…Due to its huge genetic variability, the species can be grown under unfavourable soil and climatic conditions (Ruiz-Carrasco et al 2011), showing a diverse tolerance to a wide range of abiotic stresses such as frost, salinity and drought, as well as an ability to grow on marginal soils (Jacobsen et al 2005, 2007, 2009; Maughan et al 2009; Sun et al 2014). Some varieties can grow in salt concentrations similar to those found in seawater (SW, 40 dS m −1 ) and even higher (Jacobsen et al 2001; Adolf et al 2012, 2013; Shabala et al 2012, 2013), well above the threshold for any known crop species.…”

Section: Introductionmentioning

confidence: 90%

Effect of saline water on seed germination and early seedling growth of the halophyte quinoa

et al. 2014

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The introduction of new crops with improved salinity stress tolerance could preserve water quality and protect soil resources from further degradation, providing extra sources of food for salinized areas. In this context, we tested the salinity tolerance of a variety of quinoa. Quinoa, a rich source of minerals, proteins and antioxidants, is considered a major alternative crop to meet food shortages in this century. Our study indicated that salinity tolerance of quinoa is largely conferred by a delicate balance between osmotic adjustment and ion accumulation. Salinity reduced productivity in terms of biomass, but increased the levels of antioxidant compounds, which are important health-protecting factors in food, thus providing economic benefit.

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Section: Introductionmentioning

confidence: 90%

Effect of saline water on seed germination and early seedling growth of the halophyte quinoa

et al. 2014

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“…Quinoa has recently gained worldwide attention because of its ability to be reproductive under various stress conditions (Choukr-Allah et al, 2016). Quinoa as a halophytic species has the ability to cope with salinity levels as high as those present in sea water Hariadi et al, 2011;Shabala et al, 2013;Panuccio et al, 2014). It is highly resistant to drought (Gonzalez et al, 2009a;Jacobsen et al, 2009;Gonzalez et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Chenopodium quinoa Willd. A new cash crop halophyte for saline regions of Egypt

Eisa¹,

Eid²,

El-Samad³

et al. 2017

Aust J Crop Sci

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A prerequisite for sustainable saline agriculture of cash crop halophytes in salt affected areas implies exact knowledge of their limits of salinity resistance. Hence, the first part of this study was carried out in pot experiment under greenhouse conditions to evaluate growth and seed yield of C. quinoa Willd. cv. Hualhuas to varying water salinity levels (0, 100, 200, 300, 400 and 500 mM NaCl). The limit of salinity resistance was estimated at 200 mM NaCl (~20 dSm -1 ) based on seed yield production. Depending on the results obtained from pot experiment, field trials were conducted in saline soil location (ECe 17.9 dSm -1 ) and in non-saline soil location (ECe 1.9 dSm -1 ). Seed yield significantly decreased under saline soil by about 61.7% . Beside quantity, soil salinity led to reduce the percentage of moisture, total carbohydrate and total fat contents in seeds. Salinity did not significantly alter the protein content in quinoa seeds. Significant increases in the content of ash and fiber were detected in response to high soil salinity. The high er ash content in seeds under saline conditions was due to the increase of Na + as well as K + , P 3-and Fe ++ concentrations. By contrast, soil salinity led to significant decrease of Ca ++ and Zn ++ contents in seed. Energy dispersive X-ray microanalysis showed that most of Na + in the seeds produced at saline soil was mainly accumulated in the pericarp followed by embryo tissues, while, the interior reserving tissue (perisperm) exhibiting comparatively low concentration. Increasing most of essential minerals, especially Fe, in quino a seeds produced under high saline conditions given quinoa a distinctive value for human consumption. Quinoa can be grown and yielded successfully in salt-affected soils (ECe 17.9 dSm -1 ), where, most if not all of traditional crops cannot grow, although the yield was reduced however, the seed quality was not highly affected.

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“…and exclude Na ? has been described as an important mechanism for salt tolerance in the tribe Triticeae (Shabala et al 2013;Arabbeigi et al 2014;Zhu et al 2015). Therefore, K ?…”

Section: Introductionmentioning

confidence: 99%

Physiology of salinity tolerance in Aegilops cylindrica

2015

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Aegilops cylindrica species is one of the valuable gene pool of wheat for the understanding of salinitytolerance mechanisms such as Na ? exclusion. Eighty-eight Ae. cylindrica genotypes were collected from saline and non-saline areas of West Iran and used in this study. Physiological and morphological traits including shoot and root fresh and dry weights, leaf MDA and H 2 O 2 contents, leaf and root Na ? , K ? and Ca 2? concentrations, K ? /Na ? and Ca 2? /Na ? ratio of leaves and salinity tolerance index were evaluated. Salinity stress caused significant increases in MDA and H 2 O 2 content, Na ? , Ca 2? concentrations of root and leaves, while it led to significant decline in the remaining traits. Although dry matter correlated with leaf K ? /Na ? ratio (R 2 = 0.48), the regression coefficient was higher for leaf Na ? concentration (R 2 = 0.58). The results of principal component analysis revealed two components (PC 1 and PC 2 ) which totally justified 52.47 and 48.02 % of total variations of the traits in control and salinity stress conditions, respectively. Three hypersalinity-tolerant genotypes originating from the shore areas resulted from shrinking of Uremia Salt Lake and depicted by the highest PC 1 , PC 2 , dry shoot weight and leaf K ? /Na ? ratio as well as the lower Na ? concentration in leaves and roots. The high Na ? exclusion ability in roots and shoots of Ae. cylindrica genotypes open up new avenues for further analyses at the cellular and molecular levels to address the role of C genome as well as the complex relations between C and D genomes to cope with hypersalinity stress via ionic homeostasis.

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Genotypic difference in salinity tolerance in quinoa is determined by differential control of xylem Na+ loading and stomatal density

Cited by 213 publications

References 44 publications

Effect of saline water on seed germination and early seedling growth of the halophyte quinoa

Effect of saline water on seed germination and early seedling growth of the halophyte quinoa

Chenopodium quinoa Willd. A new cash crop halophyte for saline regions of Egypt

Physiology of salinity tolerance in Aegilops cylindrica

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