Study on pathway and characteristics of ion secretion of salt glands of Limonium bicolor

• Autorzy: Feng Z. , Sun Q. , Deng Y. , Sun S. , Zhang J. , Wang B.
• Języki publikacji: EN

Abstrakty

EN

Recretohalophytes with specialized salt-secreting structures, including salt glands and salt bladders, can secrete excess salts from plant tissues and enhance salinity tolerance of plants. However, the pathway and property of salt secretion by the salt gland has not been elucidated. In the article, Limonium bicolor Kuntze was used to investigate the pathway and characteristics of salt secretion of salt gland. Scanning electron microscope micrographs showed that each of the secretory cells had a pore in the center of the cuticle, and the rice grain-like secretions were observed above the pore. The chemical composition of secretions from secretory pores was mainly NaCl using environmental scanning electron microscope technique. Non-invasive micro-test technology was used to directly measure ion secretion rate of salt gland, and secretion rates of Na⁺ and Cl⁻ were greatly enhanced by a 200-mmol/L NaCl treatment. However, epidermal cells and stoma showed little secretion of ions. In conclusion, our results provide evidence that the salt glands of L. bicolor have four secretory pores and that NaCl is secreted through these pores of salt gland.

• Wydawca: -
• Czasopismo: Acta Physiologiae Plantarum
• Rocznik: 2014
• Tom: 36
• Numer: 10
• Opis fizyczny: p.2729-2741,fig.,ref.

Twórcy

autor

Feng Z.

• Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, Jinan, 250014, China

autor

Sun Q.

• Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, Jinan, 250014, China

autor

Deng Y.

• Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, Jinan, 250014, China

autor

Sun S.

• National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Chaoyang, China
• Center for Bio-imaging, Institute of Biophysics, Chinese Academy of Sciences, Chaoyang, 100101, China

autor

Zhang J.

• National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Chaoyang, China
• Center for Bio-imaging, Institute of Biophysics, Chinese Academy of Sciences, Chaoyang, 100101, China

autor

Wang B.

• Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, Jinan, 250014, China

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Identyfikatory

DOI

10.1007/s11738-014-1644-3