Mesostructure of photosynthetic mechanism of firs in the context of stressful growth

Written by Vernigora Е.G., Burundukova О.L.

  UDK: 582.475:581.54:581.17/.174.1/2 | Pages: 24–26 | Full text PDF | Open PDF 


Background. The study results of the effect of stress factors - soil drought and shading - on the structural and functional characteristics of Ajan spruce and fir Korean were brought. Methods. Structure adaptation of photosynthetic mechanism of Ajan spruce and fir Korean was studied in shady location and soil drought in vegetative experience condition. Methods of macerated tissues were used. Results. The character of structural and functional changes and the level of response to the drought in Ajan spruce and fir Korean differs. Low values of the index of cell membranes, the index of chloroplast membranes and cell volume of the chloroplast in dry conditions showed the approach to “the stress range” of vegetation and rehabilitation of weak capacity Ajan spruce. Shady location rendered a milder effect. Conclusions. In the process of adaptive mutations in conditions of drought Ayan spruce forms the photosynthetic mechanism of xeromorphic type with low assimilation capacity. Fir Korean adapts mesostructure to reduce the negative impact of environmental factors on photosynthesis and is characterized as a kind of labile under conditions of southern Primorye.

Links to authors:

Е.G. Vernigora1, О.L. Burundukova2
1 Mountain taiga station named V.L. Komarov of Far Eastern Department RAS (26 Solnechnaya Str., Gornotayozhnoe, Ussuriskdistrict, Primorsky territory 692533 Russian Federation),
2 Biological Soil Institute FEB RAS (159 100 years Vladivostok Ave., Vladivostok 690022 Russian Federation)

1. Burundukova O.l., Ivanova L.A., Ivanov L.A. [et al.] Mesostructure of ginseng photosynthetic apparatus due to the ecological ‘strategy’ of the specie // Physiology of Plants. 2008. Vol. 55, No. 2. P. 268–271.
2. Goryshina T.K. The photosynthetic apparatus of plants and environmental conditions. L.: Leningrad University Press, 1989. 203 p.
3. Mokronosov A.T. Mesostructure and functional activity of photosynthetic apparatus // Mesostructure and functional activity of photosynthetic apparatus. Sverdlovsk: Ural University, 1978. P. 5–30.
4. Mokronosov A.T. Ontogenetic aspects of photosynthesis. М.: Nauka, 1981. 196 p.
5. Osipov S.V., Burundukova O.L. Features of larix (Larix cajanderi Mayr.) on drainage dumps of Priamurie (Russian Far East). Ecology. 2005. No. 4. P. 259–263.
6. Tselniker Yu.L. Physiological basis of shade-tolerant woody plants. М.: Nauka, 1978. 212 p.
7. Nobel P.S., Walker D.B. Structure of photosynthetic leaf tissue // Photosynthetic mechanisms and the environment. Amsterdam, 1985. Р. 501–536.
8. Patton L., Jones M.B. Some relationships between leaf anatomy and photosynthetic characteristics of willow // New Phytol., 1989. No. 111. Р. 657–661.
9. Pyankov V.I., Ivanova L.A., Lambers H. Quantitative anatomy of photosynthetic tissues of plants species of different functional types in a boreal vegetation // Inherent variation in plant growth. Physiological mechanisms and ecological consequences. Leiden, 1998. Р. 71–87.


Founded in 1997  |  Editions in a year: 4, Articles in one issue: 30 |  ISSN of print version: 1609-1175  |  Ind.: 18410 (Agency "Rospechat’")  |  Edition: 1000 c.