Growth and solute pattern of Suaeda maritima and Suaeda asparagoides in an abandoned salt field
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To investigate the environmental adaptation and ecophysiological characteristics of Suaeda maritima and S. asparagoides under saline conditions, plant growth and density were analyzed according to environmental changes of habitats. The total ion content of soil decreased with time, which was caused by the predominance of exchangeable Na+ and Cl- in the upper layers. The population of S. maritima was more densely distributed in the region with higher ion contents of Cl-, Mg2+, K+ and Na+ than the population of S. asparagoides. Both species were showed a decreased population density according to increases in plant growth. Under the conditions of a salt field, S. maritima and S. asparagoides contained high inorganic ions to maintain low water potential, but low water soluble carbohydrate contents. In the case of free amino acid, S. maritima showed an especially high proline content, and contained rather large amounts of free amino acids, whereas S. asparagoides did not. Both species showed high inorganic ion contents in the leaves, which might be a mechanism of avoiding the ionic toxicity by diluting the accumulated ionic concentration with a high ratio of water content to dry weight. This result suggests that S. maritima seems to adapt to saline conditions by accumulating proline in addition to inorganic ions. S. asparagoides seems to adapt by osmoregulation processes, using inorganic ions rather than free amino acids.
Abstract
To investigate the environmental adaptation and ecophysiological characteristics of Suaeda maritima and S. asparagoides under saline conditions, plant growth and density were analyzed according to environmental changes of habitats. The total ion content of soil decreased with time, which was caused by the predominance of exchangeable Na+ and Cl- in the upper layers. The population of S. maritima was more densely distributed in the region with higher ion contents of Cl-, Mg2+, K+ and Na+ than the population of S. asparagoides. Both species were showed a decreased population density according to increases in plant growth. Under the conditions of a salt field, S. maritima and S. asparagoides contained high inorganic ions to maintain low water potential, but low water soluble carbohydrate contents. In the case of free amino acid, S. maritima showed an especially high proline content, and contained rather large amounts of free amino acids, whereas S. asparagoides did not. Both species showed high inorganic ion contents in the leaves, which might be a mechanism of avoiding the ionic toxicity by diluting the accumulated ionic concentration with a high ratio of water content to dry weight. This result suggests that S. maritima seems to adapt to saline conditions by accumulating proline in addition to inorganic ions. S. asparagoides seems to adapt by osmoregulation processes, using inorganic ions rather than free amino acids.
참고문헌 (35)
- Akhani H, "Photosynthetic pathways in Chenopodiaceae from Africa, Asia and Europe with their ecological, phytogeographical and taxonomical importance", Plant Syst Evol, 206, pp.187~221 (1997)
- Binzel ML, "Solute accumulation in tobacco cells adapted to NaCl", Plant Physiol, 84, pp.1408~1415 (1987)
- Bradley PH, "Relative importance of ion exclusion, secretion and accumulation in Spartina alterniflora Loisel", J Exp Bot, 42, pp.1525~1532 (1991)
- Chaplin MF, "Carbohydrate Analysis: A Practical Approach", pp.2~3 (1994), Oxford University Press
- Chimenti CA, "Osmotic adjustment and yield maintenance under drought in sunflower", Field Crops Res, 75, pp.235~246 (2002)
- Choo YS, "The physiotype concept: an approach integrating plant ecophysiology and systematics", Phyton, 37, pp.93~106 (1997)
- Choo YS, "Free amino acid and nitrogen contents of the coastal plants in Korea", Korean J Ecol, 22, pp.109~117 (1999)
- Choo YS, "Ecophysiological characeristics of plant taxon-specific calcium metabolism", Korean J Ecol, 21, pp.47~63 (1998)
- Di Martino C, "Free amino acids and glycine betaine in leaf osmoregulation of spinach responding to increasing salt stress", New Phytol, 158, pp.455~463 (2003)
- Flores HE, "Osmotic stress-induced polyamine accumulation in cereal leaves. II. Relation to amino acid pools", Plant Physiol, 75, pp.110~113 (1984)
- Flowers TJ, "Salinity tolerance in halophytes", New Phytol, 179, pp.945~963 (2008)
- Heywood VH, "Flowering Plants of the World", pp.72~73 (1993), B. T. Batsford
- 임병선, "Morphological and Genetic Variations in Suaeda maritima Based on Habitat", Journal of Plant Biology(한국식물학회지), 47(3), pp.221~229 (2004), 한국식물학회
- 김창환, "새만금 간척지일대 염습지 생태복원을 위한 식생학적 연구 -염생식물의 개체군 형성 전략-", 한국환경과학회지, 18(4), pp.463~471 (2009), 한국환경과학회
- 김창환, "만경강 하구역에 분포하는 염생식물의 개체군 형성 전략에 관한 연구", 한국환경생태학회지, 20(3), pp.299~310 (2006), 한국환경생태학회
- Kinzel H, "Calcium in the vacuoles and cell walls of plant tissue: forms of deposition and their physiological and ecological significance", Flora, 182, pp.99~125 (1989)
- Lee JS, "Studies on the distribution of vegetation in the salt marsh of the Mankyung River estuary", Korean J Environ Biol, 6, pp.1~10 (1988)
- Lee JS, "Taxonomic reappraisal on Suaeda australis (Chenopodiaceae) in Korea based on the morphological and molecular chacteristics", J Plant Biol, 50, pp.605~614 (2007)
- 이승헌, "4개 간척 지구에 분포하는 식생과 토양 염류농도", 한국환경농학회지, 22(2), pp.1~ (2003), 한국환경농학회
- Li R, "Interactive effects of various salt and alkali stresses on growth, organic solutes and cation accumulation in halophyte Spartina alterniflora (Poaceae)", Environ Exp Bot, 68, pp.66~74 (2010)
- Marschner H, "Minernal nutirition of higher plant" (1995), Academic press
- McCue KF, "Drought and salt tolerance: towards understanding and application", Trends Biotechnol, 8, pp.358~362 (1990)
- Moghaieb REA, "Effect of salinity on osmotic adjustment, glycinebetaine accumulation and the betaine aldehyde dehydrogenase gene expression in two halophytic plants, Salicornia europaea and Suaeda maritima", Plant Sci, 166, pp.1345~1349 (2004)
- Park CM, "Studies on the reed (Phragmites communis Trinius) as animal feed resources. 1. Nutritive values of dried reed meal (Phragmites communis Trinius) in the rations of growing-finishing swine", Korean J Anim, 25, pp.210~218 (1983)
- Pulich WM Jr, "Variations in leaf soluble amino acids and ammonium content in subtropical seagrasses related to salinity stress", Plant Physiol, 80, pp.283~286 (1986)
- Rhodes D, "Quaternary ammonium and tertiary sulfonium compounds in higher plants", Annu Rev Plant Physiol Plant Mol Biol, 44, pp.357~384 (1993)
- Rozema J, "Ecology: crops for a salinized world", Science, 322, pp.1478~1480 (2008)
- Shen YG, "Ah-CMO, regulated by stresses in Atriplex hortensis, can improve drought tolerance in transgenic tobacco", Theor Appl Genet, 105, pp.815~821 (2002)
- Voetberg GS, "Growth of the maize primary root at low water potentials. III. Role of increased proline deposition in osmotic adjustment", Plant Physiol, 96, pp.1125~1130 (1991)
- Volkmar KM, "Physiological responses of plants to salinity: a review", Can J Plant Sci, 78, pp.19~27 (1998)
- Wang LW, "Cloning and salt-induced, ABA-independent expression of choline mono-oxygenase in Atriplex prostrata", Physiol Plant, 120, pp.405~412 (2004)
- Wang W, "Plant responses to drought, salinity and extreme temperatures: towards genetic engineering for stress tolerance", Planta, 218, pp.1~14 (2003)
- Yang C, "Comparative effects of salt and alkali stresses on growth, osmotic adjustment and ionic balance of an alkali-resistant halophyte Suaeda glauca (Bge.)", Plant Growth Regul, 56, pp.179~190 (2008)
- Yang HS, "A syntaxonomical study on the vegetation of ruined salt field in Chonnam province", Korean J Ecol, 22, pp.265~270 (1999)
- Yokoishi T, "Seed germination of the halophyte Suaeda japonica under salt stress", J Plant Res, 107, pp.385~388 (1994)