Comparison of the effects of NaCl and KCl at the roots on seedling growth, cell death and the size, frequency and secretion rate of salt glands in leaves of Limonium sinense

• Autorzy: Ding F. , Song J. , Ruan Y. , Wang B.
• Języki publikacji: EN

Abstrakty

EN

Twenty days’ exposure to 50 or 100 mM NaCl in the rooting medium substantially increased fresh and dry weights of seedling shoots of the recretohalophyte Limonium sinense while 200 or 300 mM were increasingly inhibitory. KCl treatment was only slightly stimulating (50 mM) or strongly inhibitory (100–300 mM). Lesser effects on leaf area were also seen. Diameter of foliar salt glands was significantly larger than that of controls in 100 and 200 mM NaCl with the effect being reversed at higher concentrations. Gland enlargement was also observed in the presence of 100 mM KCl, while larger concentrations reduced gland size. Generally, gland diameter was larger in the presence of NaCl than in KCl. NaCl and KCl also increased gland number per leaf and secretion rate per gland. At 100 and 200 mM NaCl or KCl, Na⁺ secretion per leaf from NaCl-treated plants exceeded K⁺ secretion rate from KCl-treated plants while at 200 mM, Na⁺ secretion per gland was significantly higher for Na⁺ than for K⁺. Evidence of cell death in leaves of salt-treated plants using Evans blue staining indicates that release of cell contents through loss of membrane integrity contributed to the secretion values. We conclude that the greater tolerance of L. sinenseto to NaCl compared to KCl is linked to the more effective secretion of Na⁺ than of K⁺ and, in turn, to a greater stimulation of salt gland formation and activity and larger gland diameter.

• Wydawca: -
• Czasopismo: Acta Physiologiae Plantarum
• Rocznik: 2009
• Tom: 31
• Numer: 2
• Opis fizyczny: p.343-350,fig.,ref.

Twórcy

autor

Ding F.

• College of Life Science, Shandong Normal University, 250014 Jinan, People's Republic of China

autor

Song J.

• College of Life Science, Shandong Normal University, 250014 Jinan, People's Republic of China

autor

Ruan Y.

• College of Life Science, Shandong Normal University, 250014 Jinan, People's Republic of China

autor

Wang B.

• College of Life Science, Shandong Normal University, 250014 Jinan, People's Republic of China

Bibliografia

• Berry WL (1970) Characteristics of salts secreted by Tamarix aphylla. Am J Bot 57:1226–1230. doi:10.2307/2441362
• Berry WL, Thomson WW (1967) Composition of salt secreted by salt glands of Tamarix aphylla. Can J Bot 45:1774–1775. doi: 10.1139/b67-187
• Gaff DF, Okong ‘O-Ogola O (1971) The use of nonpermeating pigments for testing the survival of cells. J Exp Bot 22:756–758. doi:10.1093/jxb/22.3.756
• Goodman RN (1968) The hypersensitive reaction in tobacco: a reflection of changes in host cell permeability. Phytopathol 58:872–873
• Hilu KW, Randall JL (1984) Convenient method for studying grass leaf epidermis. Taxon 33:413–415
• Karimi SH, Ungar IA (1989) Development of Epidermal Salt Hairs in Atriplex triangularis Willd. In Response to Salinity, Light Intensity, and Aeration. Bot Gaz 150:68–71. doi:10.1086/337749
• Liphschitz N, Waisel Y (1974) Existence of salt glands in various genera of the Gramineae. New Phytol 73:507–513. doi:10.1111/j.1469-8137.1974.tb02129.x
• Lu JM, Li JD, Hu AL, Li XL (1995) Observation of secretory salt structure in Limonium bicolor leaf. Chin J Appl Environ Biol 6:355–358
• Marcum KB (2006) Use of saline and non-potable water in the turfgrass industry: constraints and developments. Agric Water Manage 80:132–146. doi:10.1016/j.agwat.2005.07. 009
• Marcum KB, Murdoch CL (1992) Salt tolerance of the coastal salt marsh grass, Sporobolus virginicus (L.) Kunth. New Phytol 120:281–288. doi:10.1111/j.1469-8137.1992.tb05665.x
• Naidoo Y, Naidoo G (1998) Salt tolerance in Sporobolus virginicus: the importance of ion relations and salt secretion. Flora 193:337–344
• Pollack G, Waisel Y (1970) Salt secretion in Aeluropus litoralis (willd.) Parl. Ann Bot (Lond) 34:879–888
• Ramadan T, Flowers TJ (2004) Effects of salinity and benzyl adenine on development and function of microhairs of Zea mays L. Planta 219:639–648. doi:10.1007/s00425-004-1269-7
• Rozema J, Riphagen I (1977) Physiology and ecologic relevance of salt secretion by salt glands of Glaux maritima L. Oecologia 29:349–357. doi:10.1007/BF00345808
• Thomson WW, Berry WL, Liu LL (1969) Localization and secretion of salt by the salt glands of Tamarix phylla. Proc Natl Acad Sci USA 63:310–317. doi:10.1073/pnas.63.2.310
• Waisel Y (1960) Ecological studies on Tamarix aphylla (L.) Karst.III. The salt economy. Plant Soil 13:356–364. doi:10.1007/ BF01394647
• Wright KM, Duncan GH, Pradel KS, Carr F, Wood S, Oparka KJ, Cruz SS (2000) Analysis of the N gene hypersensitive response induced by a fluorescently tagged tobacco mosaic virus. Plant Physiol 123:1375–1386. doi:10.1104/pp.123.4.1375
• Zhou S, Zhao KF (2003) Discussion on the problem of salt gland of Glycine soja. Acta Bot Sin 45:574–580

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