Accumulation of Amino Acids and Glycinebetaine by NaCl Treatment and its Relation to Salt Tolerance in Three Gramineous Plants.

Kim, Yeonghoo; Shim, Ie Sung; Kobayashi, Katsumi; Usui, Kenji

doi:10.3719/weed.45.96

Cited by 7 publications

(7 citation statements)

References 2 publications

(2 reference statements)

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“…Proline was the most abundant amino acid that increased with NaCl treatment in the plants. This amino acid is considered one of the compatible solutes which accumulates in the cells and maintains the osmotic balance between the cells and the outer environment (Venkatesan & Chellappan 1998; Kim et al . 2000; Jain et al .…”

Section: Resultsmentioning

confidence: 99%

Differences in physiological responses to NaCl between salt‐tolerant Sesbania rostrata Brem. & Oberm. and non‐tolerant Phaseolus vulgaris L.

Jungklang

Usui

Matsumoto

2003

Weed Biology and Management

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Sesbania rostrata ( S. rostrata) Brem. & Oberm., a member of the Fabaceae family, has been used as a promising halophytic plant to ameliorate soil salinity in north-east Thailand. To obtain information regarding the mechanism of salt tolerance, the physiological responses of S. rostrata to NaCl was compared with those of the salt-susceptible species, kidney bean ( Phaseolus vulgaris L. cv. Meal). Seedlings were grown hydroponically with 0, 50, 100 and 150 m  NaCl for 10 days and their effects on growth, chlorophyll content, fluorescence yield ( F v / F m ), inorganic elements and amino acid content were determined. The results showed that tolerance to NaCl was clearly different between the two plants. At the highest concentration (150 m  ), the dry weight of S. rostrata was more than 50% greater than the control, whereas the kidney bean could not survive. Chlorophyll a content drastically reduced only in the kidney bean. The F v / F m of S. rostrata did not change with increasing concentrations of NaCl, but that of kidney bean decreased. Greater percentages ( ≥ 80%) of absorbed Na + and Clwere translocated and accumulated in the shoots of S. rostrata , but remained largely in the roots of kidney bean. The enhancement of contents of amino acids, including proline, with increasing NaCl was observed in both species. These results strongly suggest that the salt tolerance of S. rostrata is associated with the ability of the plant to translocate and sequester Na + and Clin the shoot cells.

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Section: Resultsmentioning

confidence: 99%

Differences in physiological responses to NaCl between salt‐tolerant Sesbania rostrata Brem. & Oberm. and non‐tolerant Phaseolus vulgaris L.

Jungklang

Usui

Matsumoto

2003

Weed Biology and Management

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“…This result showed that these antioxidant enzymes acting as the scavenging system might not greatly contribute to salt tolerance mechanism in E. oryzicola. Kim et al (2000) suggested that reduction of Na absorption and translocation, and accumulation of glycinebetaine and proline might contribute more to its salt tolerance than oxidative scavenging system in E. oryzicola.…”

Section: Discussionmentioning

confidence: 98%

Antioxidative responses and their relation to salt tolerance in Echinochloa oryzicola Vasing and Setaria virdis (L.) Beauv.

Kim

Arihara

Nakayama

et al. 2004

Plant Growth Regulation

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Two gramineous species among wild plants, Echinochloa oryzicola Vasing and Setaria viridis (L.) Beauv., and Oryza sativa L. cv. Nipponbare were subjected to salt stress. The relative growth rate (RGR), Na content, photosynthetic rate, antioxidant enzymes activity (superoxide disumutase (SOD), catalase (CAT), ascorbate peroxidase (APx) and glutathione reductase (GR)), and malondialdehyde (MDA) content in leaves after NaCl treatment were studied. RGR significantly decreased in O. sativa more than in E. oryzicola and S. viridis. Comparatively salt-tolerant S. viridis showed higher growth rate, lower Na accumulation rate in leaves, higher photosynthetic rate, and induced more SOD, CAT, APx, and GR activity and lower increase of MDA content as compared to the salt-sensitive O. sativa. At the same time, the comparatively salt-tolerant E. oryzicola also showed higher growth rate, much lower Na accumulation and no observable increase of MDA content, even though the CAT and APx activities were not induced by salinity. These results suggested that the scavenging system induced by H 2 O 2 -mediated oxidative damage might, at least in part, play an important role in the mechanism of salt tolerance against cell toxicity of NaCl in some gramineous plants

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“…Salt tolerance of some gramineous weeds, early watergrass ( Echinochloa oryzacola Vasing) and foxtail ( Setaria viridis (L.) Beauv. ), was related to osmotic adjustment to saline stress with accumulation of proline and glycinebetaine (Kim et al . 2000).…”

Section: Discussionmentioning

confidence: 99%

“…2000). However, most of the research related to salt stress or salt tolerance has mainly been carried out in crops or halophytes, and little information is available regarding the salt tolerance of the glycophyte weeds (Flores 1985; Greenway & Munn 1980; Kim et al . 1999, 2000).…”

Section: Introductionmentioning

confidence: 99%

Physiochemical factors affecting the salt tolerance of Echinochloa crus‐galli Beauv. var. formosensis Ohwi

Yamamoto

Shim

Fujihara

et al. 2003

Weed Biology and Management

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The effects of NaCl‐induced stress on physiochemical factors such as inorganic cations, proline, malondialdehyde (MDA) and polyamines were investigated in the gramineous weed, Echinochloa crus‐galli Beauv. var. formosensis Ohwi (E. crus‐galli) and rice (Oryza sativa L. cv. Nipponbare). Growth inhibition at the 2nd leaf stage under salt stress was more severe in rice than in E. crus‐galli. Water content in the 2nd leaves was also more severely decreased in rice, indicating that E. crus‐galli was more salt‐tolerant. After NaCl treatment, Na+ accumulated in the 2nd leaves of both plant species but not in their roots. Proline accumulation in the 2nd leaves was significantly higher in salt stressed E. crus‐galli than in rice, suggesting the significance of proline production in the salt tolerance of this weed. Content of MDA of the rice increased more greatly with NaCl treatment than that in E. crus‐galli. NaCl treatment affected polyamine metabolism of both plant species, but the response of each plant to salt stress was somewhat different, especially in the leaves. Leaf putrescine and spermidine contents were high in non‐stressed plants in salt‐sensitive rice, although rather lower in E. crus‐galli in response to NaCl concentrations. These results indicate that an increase in proline and changes in polyamines relates to the salt tolerance of E. crus‐galli.

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Accumulation of Amino Acids and Glycinebetaine by NaCl Treatment and its Relation to Salt Tolerance in Three Gramineous Plants.

Cited by 7 publications

References 2 publications

Differences in physiological responses to NaCl between salt‐tolerant Sesbania rostrata Brem. & Oberm. and non‐tolerant Phaseolus vulgaris L.

Differences in physiological responses to NaCl between salt‐tolerant Sesbania rostrata Brem. & Oberm. and non‐tolerant Phaseolus vulgaris L.

Antioxidative responses and their relation to salt tolerance in Echinochloa oryzicola Vasing and Setaria virdis (L.) Beauv.

Physiochemical factors affecting the salt tolerance of Echinochloa crus‐galli Beauv. var. formosensis Ohwi

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