2013, № 10 (159)

Betechtina A.A., Gajsina D.F., Veselkin D.V. FEATURES OF THE ROOTS STRUCTURE AND MYCORRHIZA FORMATION OF PLATANTHERA BIFOLIA AND DACTYLORHIZA HEBRIDENSIS IN DIFFERENT AGE STAGESThe sizes of additional roots and feature of mycorrhiza development at Platanthera bifolia and Dactylorhiza hebridensis were analyzed in different ontogenetic stages. It is established that intensity of mycorhiza development decreases upon transition from juvenile individuals to virginile, immature and generative. Thus the cross sizes of roots and, especially, extent of a mesoderm increase in process of age development of plants. As a result the quantity of a fungal mycelium in ontogeny investigated tuberous orchids remains to constants in terms of unit of length of a root. Key words: orchids, Platanthera bifolia, Dactylorhiza hebridensis, roots, mycorrhizae, ontogeny, morphogenesis.

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About this article

Authors: Betehtina A.A., Gaysina D.F., Veselkin D.V.

Year: 2013

Editor-in-chief

Sergey Aleksandrovich
MIROSHNIKOV

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