Effect of salinity on osmotic adjustment characteristics of Kandelia candel

Journal Article (Journal Article)

To elucidate the osmotic adjustment characteristics of mangrove plants, inorganic ion and organic solute contents of intermediate leaves were investigated in 3-month-old Kandelia candel (L.) Druce seedlings during 45 days of NaCl treatments (0, 200, and 500 mM NaCl). The contents of Na , Cl , total free amino acids, proline, total soluble sugars, pinitol and mannitol increased to different degree by salinity, whereas, K content decreased by salinity compared with control. NaCl treatment induced an increase of inorganic ion contribution while a decrease of organic solute contribution. It was concluded that accumulating a large amount of inorganic ions was used as the main osmotic adjustment mechanism under salinity treatment. However, accumulation of organic osmolytes might be considered to play much more important role in osmoregulation under severe salinity (500 mM NaCl) than under moderate salinity (200 mM NaCl), thus the damage caused by high toxic ions (Na and Cl ) concentration in K. candel leaves could be avoided. © 2011 Pleiades Publishing, Ltd. + - + + -

Full Text

Duke Authors

Cited Authors

  • Zhu, Z; Pei, ZM; Zheng, HL

Published Date

  • March 1, 2011

Published In

Volume / Issue

  • 58 / 2

Start / End Page

  • 226 - 232

International Standard Serial Number (ISSN)

  • 1021-4437

Digital Object Identifier (DOI)

  • 10.1134/S1021443711020270

Citation Source

  • Scopus