J. For. Sci., 2007, 53(1):13-19 | DOI: 10.17221/2081-JFS

Effects of salinity on leaf characteristics and CO2/H2O exchange of Kandelia candel (L.) Druce seedlings

D.-L. Qiu1,2, P. Lin1, S. Z. Guo2
1 School of Life Science, Xiamen University, P.R. China
2 College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, P.R. China

Effects of salinities on leaf characteristics and CO2/H2O exchange of mangrove species Kandelia candel seedlings were studied in a pot experiment. The seedlings grown in salinity of 50‰ caused a strong reduction in the rate of growth, but their leaves were black-green, smaller and less expanded or distorted than those of plants in the control and treatment of 25‰. As compared with control plants, leaves of plants treated with salinity of 25‰ were shiny and smooth. Stomatal number and density under the epidermis in leaves were reduced with the increase of salinity. Mesophyll cells in plants grown in salinity of 50‰ were smallest, 25‰ ranked the second and 0‰ were largest. Their arrangement was compact in 50‰, while in the control it was loose. Cells of the upper epidermis in leaves of control plants were loose and the cell wall was thin while that of 50‰ was more compact and the cell wall was thicker than that of 0‰. Chlorophyll (Chl) (a + b) content μmol/cm2) in plants grown in 50‰ salinity increased significantly compared with that in 0‰, and Chl a/b was also reduced. Carotenoid pigments (Car) increased significantly in different treatments. Photosynthesis (Pn) was significantly inhibited by higher salinity, and the light compensation point of higher salinity leaves increased. Net photosynthetic rate (Pn), stomatal conductance (Cs), and transpiration rate (Tr) were reduced with the increase of salinity while dark respiration (Rd) increased.

Keywords: salinity; mangrove; cell structure; photosynthesis; transpiration

Published: January 31, 2007  Show citation

ACS AIP APA ASA Harvard Chicago Chicago Notes IEEE ISO690 MLA NLM Turabian Vancouver
Qiu D-L, Lin P, Guo SZ. Effects of salinity on leaf characteristics and CO2/H2O exchange of Kandelia candel (L.) Druce seedlings. J. For. Sci. 2007;53(1):13-19. doi: 10.17221/2081-JFS.
Share...
Download citation
  • BibTeX (.bib)
  • Bookends (.ris)
  • EasyBib (.ris)
  • EndNote (.enw)
  • EndNote 8 (.xml)
  • ISI WoS (.isi)
  • Medlars (.medlars)
  • Mendeley (.ris)
  • MODS (.xml)
  • Papers (.ris)
  • RefWorks (.txt)
  • RefManager (.ris)
  • RIS (.ris)
  • MS Word (.xml)
  • Zotero (.ris)
    • Open full article

    References

    1. ARNON D.I., 1949. Copper enzyme in isolated chloroplasts, polyphenol oxidase in Beta Vulgaris. Plant Physiology, 130: 267-272. Go to original source... Go to PubMed...
    2. BALL M.C., CRITCHLEY C., 1982. Photosynthetic responses to irradiance by the grey mangrove, Avicennia marina, grown under different light regimes. Plant Physiology, 70: 1101-1106. Go to original source... Go to PubMed...
    3. BALL M.C., FARQUHAR C.D., 1984a. Photosynthetic and stomatal responses of two mangrove species, Aegiceras corniculatum and Avicennia marina, to long term salinity and humidity conditions. Plant Physiology, 74: 1-6. Go to original source... Go to PubMed...
    4. BALL M.C., FARQUHAR C.D., 1984b. Photosynthetic and stomatal responses of the grey mangrove Avicennia marina, to transient salinity and humidity conditions. Plant Physiology, 74: 7-11. Go to original source... Go to PubMed...
    5. BALL M.C., PIDSLEY S.M., 1995. Growth response to salinity in relation to distribution of two mangrove species Sonneratia alba and S. lanceolate in northern Australia. Functional Ecology, 19: 77-85. Go to original source...
    6. BONGI G., LORETO F., 1989. Gas-exchange properties of salt-stressed Olive (Olea europea L.). Plant Physiology, 90: 1408-1416. Go to original source... Go to PubMed...
    7. BOYER J.S., 1976. Water deficits and photosynthesis. In: KOZLOWSKI T.T. (ed.), Water Deficits and Plant Growth. Volume 4. New York, Academic Press: 153-159. Go to original source...
    8. BRUGNOLI E., BJORKMAN O., 1992. Growth of cotton under continuous salinity stress: influence on allocation pattern, stomatal and non-stomatal components of photosynthesis and dissipation of excess light energy. Planta, 187: 335-347. Go to original source... Go to PubMed...
    9. CHEN C.P., WANG W.Q., LIN P., 2000. Influences of salinity on the growth and some ecophysiological characteristics of mangrove species Sonneratia apetala seedlings. Chinese Bulletin of Botany, 17: 457-461. (in Chinese)
    10. CORNIC G., GHASGHAIE J., GENTY B., BRIANTAIS J.M., 1992. Leaf photosynthesis is resistant to a mild drought stress. Photosynthetica, 27: 295-309.
    11. DUBINSKY Z., STAMBLER N., 1996. Eutrophication, marine pollution and coral reef. Global Change Biology, 2: 511-526. Go to original source...
    12. DUXBURY A.C., YENTSCH C.S., 1956. Plankton pigment monograph. Journal of Air Pollution Association, 16: 145-150.
    13. FARQUHAR G.D., SHARKEY T.D., 1982. Stomatal conductance and photosynthesis. Annual Review of Plant Physiology, 33: 317-345. Go to original source...
    14. HAY R.K.M., WALKER A.J., 1989. Endogenous and environmental factors affecting photosynthesis: water stress. In: HAY R.K.M., WALKER A.J. (ed.), An Introduction to the Physiology of Crop Yield. New York, Longaman Scientific & Technical: 48-80.
    15. KAISER W.M., 1987. Effects of water deficit on photosynthetic capacity. Plant Physiology, 71: 142-149. Go to original source...
    16. KECK R.W., BOYER J.S., 1974. Chloroplast response to low leaf water potential III. Differing inhibition of electronic transport and photophosphorylation. Plant Physiology, 53: 474-479. Go to original source... Go to PubMed...
    17. KHAN M.A., UNGAR I.A., SHOWALTER A.M., 2000. The effect of salinity on the growth, water status, and ion content of a leaf succulent perennial halophyte Suadea fruticosa (L.) Forssk. Journal of Arid Environments, 45: 73-84. Go to original source...
    18. KUMER P.J., GUPTA P.K., 1986. Influence of different leaf water potential on photosynthetical carbon metabolism in sorghum. Photosynthetica, 20: 391-396.
    19. LAUTERI M., SCARTAZZA A., GUIDO M.C., BRUGNOLI E., 1997. Genetic variation in photosynthetic capacity, carbon isotope discrimination and mesophyll conductance in provenances of Castanea sativa adapted to different environments. Functional Ecology, 11: 657-683. Go to original source...
    20. LIN P., 1999. Mangrove Ecosystem in China. Beijing, New York, Science Press: 8-25.
    21. MARTIN B., ORT D.R., BOYER J.S., 1981. Impairment of photosynthesis by chilling temperatures in tomato. Plant Physiology, 68: 329-334. Go to original source... Go to PubMed...
    22. PARIDA A.K., DAS A.B., MITTRA B., 2003. Effects of NaCl stress on the structure, pigment complex composition and photosynthetic activity of mangrove Bruguiera parviflora chloroplasts. Photosynthetica, 41: 191-200. Go to original source...
    23. SOBRADO M.A., BALL M.C., 1999. Light use in relation to carbon gain in the mangrove, Avicennia marina, under hypersaline conditions. Australian Journal of Plant Physiology, 26: 245-251. Go to original source...
    24. TAYLOR A.O., ROWLEY J.A., 1971. Plants under climatic stress. I. Chilling, high light effects on photosynthesis. Plant Physiology, 47: 713-718. Go to original source... Go to PubMed...
    25. TERASHIMA I., HIKOSAKA K., 1995. Comparative ecophysiology of leaf and canopy photosynthesis. Plant, Cell and Environment, 18: 1111-1128. Go to original source...
    26. VU C.V., ALLEN J.L., BOWERS G., 1987. Drought stress and elevated CO2 effects on soybean ribulose biphosphate carboxylase activity and canopy photosynthetic rate. Plant Physiology, 83: 573-578. Go to original source... Go to PubMed...
    27. YANG S.C., LIN P., 1995. A mathematical model of low temperature and exposure time interactions on Kandelia candel leaf cold-sensitivity. Chinese Bulletin of Botany, 7: 164-168. (in Chinese)
    28. YOUNGIS H.M., BOYER J.S., 1979. Conformation and activity of chloroplast coupling factor exposed to low chemical potential water in cells. Biochemica et Biophysica Acta, 548: 328-340. Go to original source... Go to PubMed...
    29. ZHENG W.J., LIN P., 1992. Effects of salinity on the growth and some eco-physiological characteristic of mangrove Bruguira sexangula seedlings. Chinese Journal of Applied Ecology, 3: 9-14.

    This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY NC 4.0), which permits non-comercial use, distribution, and reproduction in any medium, provided the original publication is properly cited. No use, distribution or reproduction is permitted which does not comply with these terms.


    Return to the content