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Contemporary Problems of Ecology

2015 year, number 5

Biomorphology: urrent Status and Prospects

1Vyatka State University of Humanities, 610007, Kirov, Lenin str., 198
2Central Siberian Botanical Garden, SB RAS, 630090, Novosibirsk, Zolotodolinskaya str., 101
Keywords: biomorph, boimorphology, ontomorphogenesis, module, shoot formation model

Abstract >>
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. Serebryakovs 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.

Biomorphological Adaptations of Helophytes

Vyatka State University of Humanities, 610007, Kirov, Lenin str., 198
Keywords: , - , , , , , , ecological type, air-water plants, helophyte, life form, shoot, bud, adaptation

Abstract >>
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.

Adaptive Strategies of Homosporous Helophytic and Hydrophytic Ferns

Orel State University, 302026, Orel, Komsomolskaya str., 95
Keywords: helophytes, hydrophytes, aerohydatophytes, acrophyllomic and laminlic buds, hydropotes

Abstract >>
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 anlysis 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.

Morphoadaptive Determination of Structural Diversity of Biomorphs of Salix L. Species in Southern Urals

Chelyabinsk State University, 454001, Chelyabinsk, Bratyev Kashirinykh str., 129
Keywords: biomorphological adaptation, petrophytes, sphagnicolous plants, substrate, Southern Urals

Abstract >>
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 willows crown, was retained.

Structural Modifications of Birch (Betula pendula Roth.) Crown in Relation to Environmental Conditions

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

Abstract >>
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.

Biomorphology of the Shrub Liana Atragene sibirica L.

Yugra State University, 628002, Khanty-Mansiysk, Tchekhova str., 16
Keywords: Atragene sibirica L, modular organization of plants, shoot formation, ontomorphogenesis

Abstract >>
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.

Morphological Transformation of Thymus baicalensis (Lamiaceae) in Different Environmental Conditions

Central Siberian Botanical Garden, SB RAS, 630090, Novosibirsk, Zolotodolinskaya str., 101
Keywords: Thymus baicalensis, dwarf shrub, shoot formation, life form, morphological adaptation, environmental conditions

Abstract >>
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.

ntogenesis and Life-Forms of Hedysarum L. (Fabaceae) in South Siberia

Central Siberian Botanical Garden, SB RAS, 630090, Novosibirsk, Zolotodolinskaya str., 101
Keywords: Hedysarum L, ontomorphogenesis, life forms, adaptation, South Siberia

Abstract >>
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.

Life Forms of Scutellaria supin L. (Lamiaceae)

Central Siberian Botanical Garden, SB RAS, 630090, Novosibirsk, Zolotodolinskaya str., 101
Keywords: morphogenesis, life form, morphological adaptation, somatic evolution, Scutellaria supin, Lamiaceae

Abstract >>
The development of Scutellaria supin individuals was studied in the Asian part of the distribution range. Four life forms (subshrub, dwarf subshrub, taproot herbaceous polycarpic and long-rhizomatous-taproot herbaceous polycarpic) were described in different growing conditions. The mechanisms of structural transformations of individual plants and modes of morphological evolution of life forms of the species were detected.

Morphological Adaptation of Nepeta pamirensis Franch. (Lamiaceae) to the Conditions of the Pamir Mountains

Central Siberian Botanical Garden, SB RAS, 630090, Novosibirsk, Zolotodolinskaya str., 101
Keywords: morphology, ontomorphogenesis, morphological polyvariety, Nepeta pamirensis, morphological adaptation, Pamir

Abstract >>
The study concerned shoot formation and structural and morphological peculiarities of different life forms of Nepeta pamirensis specimens, as well as their morphogenesis and its polyvariety in the conditions of the Pamir Mountains (Tajikistan). Depending on the habitat conditions, Nepeta pamirensis specimens formed three life forms: herbaceous caudex taproot perennial plants, cushion semishrubs and aeroxylic semishrubs. For each life form the phases of morphogenesis were determined and the functional and zonal structure of shoot systems were described.

Modular and Structural-Functional Organization of g. Sparganium L. Species in Different Ecological Conditions

I. D. Papanin Institute for Biology of Inland Waters, RAS, 152742, Yaroslavl region, Nekouz district, Borok
Keywords: shoot system, structural elements, modular organization, structural-functionl zones, Sparganium emersum, Sparganium ntans, Sparganium erectum, Sparganium microcarpum

Abstract >>
Structure of monocarpic shoots of some representatives of the Sparganiaceae family (Sparganium emersum Rehm., S. ntans L. (subgenus Xanthosparganium), Sparganium erectum L. and Sparganium microcarpum (Neum.) Domin (subgenus Melanosparganium)) was analyzed with the help of the modular approach. The structure of all three module categories - elementary (EM), universal (UM) and basic (BM) - was described. With decreasing of EM value, all investigated species lined up in the following descending order: S. emersum (23) > S. erectum (20) > S. ntans (19) > S. microcarpum (18). It was determined that the level of EM similarity between two bur-reed subgenera reached 30 %. The rest EM part was specific for certain subgenera as well as for certain species. It was shown that dissimilarities between different ecological forms of Sparganium were due not to quantitative EM increase but to their transformation ability which improves species adaptation to varying water level conditions of reservoirs. UM value in the representatives of both subgenera equaled 4, BM values were represented by two similar variants. This was caused by the similarity of habitats of the model species. The plants special features on the level of structural-functional organization of different types of monocarpic shoots were shown. Differences in the set of structural-functionl zones for particular shoot types were also revealed.

Peculiarities of Morphogenesis of arex hirta L. on the Oil-Contaminated Soil

Ivan Franko Nationl University of Lviv Department of Plant Physiology and Ecology, 79005, Ukraine, Lviv, Hrushevsky str., 4
Keywords: Carex hirta L, morphogenesis, leaves, rhizomes, roots, crude oil contamintion of soils

Abstract >>
The features of growth of C. hirta on the oil-contaminated soil were studied for the first time. Reduction of morphometric parameters of leaves, rhizomes, and enlargement of roots under the influence of oil were determined. Duration of morphogenesis of C. hirta plants on the oil-polluted soil was also reduced. Early ageing of leaves was observed. Rhizomes of the plants from the petropolluted soils branched less. Their plagiotropic growth soon changed to the orthotropic. As the result of the study, the data on morphology, morphogenesis and ecology of C. hirta were replenished.