| Article |
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| Article name |
Ecological Anatomy of Plagiorhegma dubia Maxim. (Berberidaceae) |
| Authors |
Tsyrenova D.Y. Doctor of Science (Biology), associate professor, Duma@mail.ruVarfolomeeva A.S. Student, mail@pnu.edu.ru |
| Bibliographic description |
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| Section |
Botany |
| UDK |
581.8(571.62) |
| DOI |
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| Article type |
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| Annotation |
The anatomy of the overground organs of Plagiorhegma dubia Maxim. (Berberidaceae) is discussed. It is an early spring ephemeroid. It is the rare Red Book species and is protected
in Khabarovsk krai. It belongs to the third category. Micromorphological signs are revealed as the reflection of ecological preference of species. First, mesophily of this species is reflected in the large thickness of lamina, big mesophyll cells and weak sclerification of the leaf tissue. Mesomorphic features characterize this species as the forest phytocenotype. Second, upper palisade mesophyll, hypostomic epidermis and compact mesophyll show the heliophilous character of this species. Light leaf structure is associated with early spring synusia of this species in mixed coniferous-broadleaved forests of East Asia. Third, considerable extent of the epidermis walls, combined epidermis with different-sized stoma, reduction of the vascular cambium in pedicel represent ephemeroid phenorhythm of this species. This species realizes hereditary features as the forest ephemeroid within the northern natural habitat. Rarity of the species, in addition to its old age and location in the border natural habitat is mostly related to anthropogenic transformation of forest formations.
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| Key words |
Plagiorhegma dubia, Berberidaceae, ephemeroid, ecological anatomy, Khabarovsk krai. |
| Article information |
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| References |
1. Barykina R. P., Chubatova N. V. Bol’shoj praktikum po botanike. Jekologicheskaja anatomija cvetkovyh rastenij: ucheb.-metod. posobie. M.: T-vo nauch. izd. KMK, 2005. 77 s.
2. Barykina R. P., Veselova T. D., Devjatov A. G. i dr. Spravochnik po botanicheskoj mikrotehnike. M., 2004. 331 s.
3. Krasnaja kniga Habarovskogo kraja. Habarovsk: Priamurskie vedomosti, 2008. 632 s.
4. Prozina M. N. Botanicheskaja mikrotehnika. M.: Vyssh. shk., 1960. 206 s.
5. Samylina I. A., Anosova O. G. Farmakognozija. Atlas: ucheb. posobie: v 2 t. T. 1. M., 2007. 192 s.
6. Harkevich S. S. Sem. Barbarisovye – Berberidaceae Juss. // Sosudistye rastenija sovetskogo Dal’nego Vostoka / otv. red. S. S. Harkevich. SPb., 1987. T. 2. S. 31–37.
7. Shreter A. I. Lekarstvennaja flora sovetskogo Dal’nego Vostoka. M., 1975. S. 120. |
| Full article | Ecological Anatomy of Plagiorhegma dubia Maxim. (Berberidaceae) |
