N. P. SAVINYKH1, V. A. CHERYOMUSHKINA2
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Keywords: biomorph, boimorphology, ontomorphogenesis, module, shoot formation model
On the basis of the concepts of I. G. Serebryakov (the founder of the science of plant life forms) and the analysis of current data the main directions of research and achievements of Russian botanists in the studying of life forms, as well as prospects for the development of biomorphology were shown. Plants were assessed as a distinctive group of living beings in the context of biological systems integrity. New approaches to habit characteristics, morphogenesis stages in relation to individual variations in ontogenesis, and classifications of plant life forms were considered. The role of systemic and dynamic approaches in description of plant life forms as modular organisms and the role of time as the forth dimension and fundamental category in plant habit formation were discussed. I. G. Serebryakov’s assumption of an evolutionary system of biomorphs as the system of parallel series of life forms similar to homologous series of hereditary variation was confirmed.
N. P. SAVINYKH, S. V. SHABALKINA, E. V. LELEKOVA
Vyatka State University of Humanities, 610007, Kirov, Lenin str., 198
Keywords: экологический тип, воздушно-водные растения, гелофиты, жизненная форма, побег, почка, адаптация, ecological type, air-water plants, helophyte, life form, shoot, bud, adaptation
Nine species of helophytes were described using the systematic approach: Alisma plantago-aquatica, Butomus umbellatus , Sagittaria sagittifolia, Sparganium emersum, Glyceria maxima, Phragmites australis, Scirpus lacustris, Typha latifolia, T. angustifolia. The species were divided into four groups according to their characteristics: monopodial rosette plants with a short rhizome, sympodial semirosette plants with a short rhizome, sympodial semirosette tuberous plants, sympodial plants with a long rhizhome. It was determined that maternal individuums and vegetative offsprings of polycarpic plants tended to become short-lived. This tendency was implemented in different ways.
N. M. DERZHAVINA
Orel State University, 302026, Orel, Komsomolskaya str., 95
Keywords: helophytes, hydrophytes, aerohydatophytes, acrophyllomic and laminаlic buds, hydropotes
On the basis of the study of helophytic and hydrophytic ferns, as well as literature data, adaptive strategies of their sporophytes were identified. A complex anаlysis of the photosynthetic apparatus of the plants was carried out at different levels of its organization : a) fronds, b) mesophyll cells, c) plastid apparatus. Among these species there had been a selection of the plants which were characterized by various biomorphs, active vegetative reproduction and accelerated passing of ontogenetic phases. As the result, the structures promoting aeration, maintenance of optimum water balance and effective photosynthesis had appeared.
The stages of ontomorphogenesis of willows and development of their life forms in different ecological environments were described. The willows belonged to different ecological groups, which structural features served as indicators of habitats. It was shown that the diversity of biomorphs was due to the morphogenesis process with species-specific morphobiological adaptations of shoot systems. At the same time the unique, genetically determined «architectural unit» of genus Salix L., — a triaxial biannual shoot complex, that formed willow’s crown, was retained.
M. V. Kostina, N. S. Barabanshchikova, G. V. Bityugova, O. L. Yasinskaya, A. M. Dubakh
Sholokhov Moscow State University for Humanities, 109240, Moscow, Tashkentskaya str., 18
Keywords: Betula pendula, annual shoot, architectural unit, reiterated complex, environmental conditions
The structure and formation of the crown of Betula pendula Roth. were studied from the perspective of the concept of architectural models and reiteration concept. Some peculiarities in formation and structure of an architectural unit and reiterated complexes due to total, partial, delayed, immediate, traumatic and automatic reiterations were detected. The specifics of these processes under different lighting conditions were identified. The trees crown structure in adverse environmental conditions in cities was studied. It was established that ecological plasticity and ontogenetic polyvariety of B. pendula were mostly determined by reiteration processes.
The shoot systems and ontomorphogenesis of Atragene sibirica L. were studied. Morphological and size polyvariety of all functional types of shoots were described. The high adaptive capacity of the shrub liana in terms of shoot formation in different environmental conditions was established.
Shoot formation and life forms of Thymus baicalensis were studied in different environmental conditions on the Olkhon island. Different life forms were typical for different habitats: in mountain steppes, on a hilltop — vegetatively-immobile aeroxylic dwarf shrubs, on a hillside — vegetatively-immobile prostrate dwarf shrubs, in sandy steppes — cushion-like life forms. The base part of the bush of adult individual forms was formed by the skeletal axis with monopodial and sympodial growth. Morphological adaptation mechanisms in different conditions is to change the structure of the axes, duration of the growth, the nature of rooting and position in space. The mechanism of morphological adaptation to different environmental conditions was expressed by changing the structure of the skeletal axes, duration of their growth, nature of rooting and position in space.
N. A. KARNAUKHOVA
Central Siberian Botanical Garden, SB RAS, 630090, Novosibirsk, Zolotodolinskaya str., 101
Keywords: Hedysarum L, ontomorphogenesis, life forms, adaptation, South Siberia
Sixteen species of
Hedysarum L. were studied in different eco-phytocenotic conditions in South Siberia. The peculiarities of vegetative reproduction, growth and dying of shoots, morphological structure, life span and modification of aboveground and underground shoots were described. The system of life forms of
Hedysarum L. was presented.
A two-dimensional Ni(II) complex {[Ni(BTX)(SDBA)(H
2O)]·0.29H
2O}
n (1) (BTX = 1,4-bis(1,2,4-triazol-1-ylmethyl)-benzene, H
2SDBA = 4,4'-sulfonyldibenzoic acid) is synthesized and characterized using single crystal X-ray diffraction, IR spectroscopy, and elemental analysis. The single crystal X-ray diffraction analysis reveals that complex 1 is a two-dimensional polymer containing 28-membered rings based on the rhomboid subunit [Ni
2(C
14H
8O
6S)
2] with a Ni-Ni separation of 12.923 Å. The thermal stability and magnetic property of the title complex are briefly investigated.
A one-dimensional Zn(II) complex [Zn(Im)
2(NO
2-BDC)]
n (1) (Im = Imdazole, NO
2-H
2BDC = 5-nitro-1,3-benzenedicarboxylic acid) is synthesized and characterized using single crystal X-ray diffraction, IR spectroscopy and elemental analysis. Single crystal X-ray diffraction analysis reveals that complex 1 is a one-dimensional chain polymer with a Zn⋯Zn separation of 9.6190(2) Å arranged parallel to the (1 0 0) crystal direction. In addition, the luminescence measurements reveal that complex 1 exhibits strong fluorescent emissions in the solid state at room temperature.