Effect of salinity on osmotic adjustment, glycinebetaine accumulation and the betaine aldehyde dehydrogenase gene expression in two halophytic plants, Salicornia europaea and Suaeda maritima

Moghaieb, Reda E. A.; Saneoka, Hirofumi; Fujita, Kazuo

doi:10.1016/j.plantsci.2004.01.016

Cited by 181 publications

(120 citation statements)

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“…1). Betaine can be biosynthesized by cells for the protection against osmotic stresses, such as drought, high salinity, and high temperature in biological systems including both plants and animals (especially marine invertebrates; Moghaieb et al 2004;Zhang et al 2011a, b;Liu et al 2011c, d, e). The pathway of betaine biosynthesis in S. salsa is straightforward: choline monooxygenase (CMO) converts choline to betaine aldehyde that can then be converted to betaine by betaine aldehyde dehydrogenase (BADH; Lee et al 2004;Peel et al 2010;Greenway and Osmond 1972;Bao et al 2011).…”

Section: Discussionmentioning

confidence: 99%

“…The changes in these metabolites indicated the disturbances in the TCA cycle that was related to the energy metabolism. Choline is the metabolite in betaine synthesis (Moghaieb et al 2004;Bao et al 2011). In the pathway, CMO converts choline to betaine aldehyde, which is then converted to betaine catalyzed by BADH (Moghaieb et al 2004;Peel et al 2010).…”

Section: Discussionmentioning

confidence: 99%

“…Choline is the metabolite in betaine synthesis (Moghaieb et al 2004;Bao et al 2011). In the pathway, CMO converts choline to betaine aldehyde, which is then converted to betaine catalyzed by BADH (Moghaieb et al 2004;Peel et al 2010). In this work, the decrease of choline meant the enhancement of betaine synthesis, which was confirmed by the elevation of betaine in the root of S. salsa.…”

Section: Discussionmentioning

confidence: 99%

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Salinity-Induced Effects in the Halophyte Suaeda salsa Using NMR-based Metabolomics

Liu

You

et al. 2011

Plant Mol Biol Rep

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Suaeda salsa is a native halophyte in saline soils. Salinity is the most important environmental constraint for plant productivity in the Yellow River Delta. In this work, we investigated the salt-induced effects in root of S. salsa exposed to two environmentally relevant salinities for 1 week and 1 month using nuclear magnetic resonance-based metabolomics. Our results indicated that salt stress inhibited the growth of S. salsa and induced significant metabolic responses including decreased amino acids, lactate, 4-aminobutyrate, malate, choline, phosphocholine, and increased betaine, sucrose, and allantoin in root tissues of S. salsa. In addition, salinity exposures upregulated the activities of superoxide dismutase, glutathione S-transferases, peroxidase, catalase, and glutathione peroxidase in the aboveground part of seedlings of S. salsa after exposures. Overall, these results demonstrated the osmotic and oxidative stresses, disturbances in protein biosynthesis/degradation, and energy metabolism in S. salsa exposed to salinities.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Salinity-Induced Effects in the Halophyte Suaeda salsa Using NMR-based Metabolomics

Liu

You

et al. 2011

Plant Mol Biol Rep

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“…Numerous studies have concluded that the high Na tolerance of halophytes is due to an effective compartmentalization of Na in vacuoles, and regulation of osmotic pressure (Parks et al 2002;Hariadi et al 2011;Lv et al 2012a). It has been reported that maintenance of osmotic adjustment is brought about by accumulation of betaine and proline (Khan et al 2000;Moghaieb et al 2004). A high antioxidative enzyme activity that avoids oxidative damage by Na contributes to high Na tolerance in Atriplex portulacoides L. (Benzarti et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Function of sodium and potassium in growth of sodium-loving Amaranthaceae species

Yamada

Kuroda

Fujiyama

2015

Soil Science and Plant Nutrition

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We observed that the growth of three Amaranthaceae species was promoted by sodium (Na), in the order dwarf glasswort (Salicornia bigelovii Torr.) >> Swiss chard (Beta Burgaris L. spp. cicla cv. Seiyou Shirokuki) > table beet (Beta vulgaris L. spp. vulgaris cv. Detroit Dark Red). In the present study, these Na-loving plants were grown in solutions containing 4 mol m −3 nitrate nitrogen (NO 3 -N) and 100 mol m −3 sodium chloride (NaCl) and potassium chloride (KCl) under six Na to potassium (K) ratios, 0:100, 20:80, 40:60, 60:40, 80:20 and 100:0, to elucidate the function of Na and K on specific characteristics of Na-loving plants. The growth of dwarf glasswort increased with increasing Na concentration of the shoot, and the shoot dry weight of plants grown in 100:0 Na:K was 214% that of plants grown at 0:100. In Swiss chard and table beet, growth was unchanged by the external ratio of Na to K. The water content was not changed in Swiss chard or table beet by the external Na to K ratio. These observations indicate that both Na and K have a function in osmotic regulation. However, dwarf glasswort could not maintain succulence at 0:100; therefore, Na has a specific function in dwarf glasswort for osmotic regulation to maintain a favorable water status, and the contribution of K to osmotic regulation is low. NO 3 -N uptake was promoted by Na uptake in dwarf glasswort and Swiss chard. NO 3 -N uptake and transport to shoots was optimal at 100:0 in dwarf glasswort and at 80:20 in Swiss chard. These functions are very important for the Na-loving mechanism, and the contribution of K was lower in dwarf glasswort than in Swiss chard. ARTICLE HISTORY

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“…Some halophytes may regulate root ion concentrations by ion exclusion at the root cortex, 8 or accumulate glycinebetaine in the cytoplasm following salt accumulation for the purpose of osmoregulation. [9][10][11][12] Salicornia plants increase acetylcholinesterase (AChE) activity in the root and the lower part of the stem following Na + and Cl -accumulation. 13,14 Furthermore, high histochemical AChE activity was detected in the cortex of roots and stems of Salicornia plants including endodermal cells around the vascular system, and strongly in endodermis, cortex and epidermis at the bifurcation of lateral roots from the main root.…”

mentioning

confidence: 99%

Molecular cloning ofacetylcholinesterasegene fromSalicornia europaeaL.

Yamamoto

Oguri

Chiba

et al. 2009

Plant Signaling & Behavior

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Effect of salinity on osmotic adjustment, glycinebetaine accumulation and the betaine aldehyde dehydrogenase gene expression in two halophytic plants, Salicornia europaea and Suaeda maritima

Cited by 181 publications

References 20 publications

Salinity-Induced Effects in the Halophyte Suaeda salsa Using NMR-based Metabolomics

Salinity-Induced Effects in the Halophyte Suaeda salsa Using NMR-based Metabolomics

Function of sodium and potassium in growth of sodium-loving Amaranthaceae species

Molecular cloning ofacetylcholinesterasegene fromSalicornia europaeaL.

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