Biomorphology: Current status and prospects

Savinykh, N. P.; Cheryomushkina, V. A.

doi:10.1134/s1995425515050121

Cited by 24 publications

(19 citation statements)

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“…At the same time, each shoot which is unit of count is in a certain way an autonomous formation. At the same time, autonomisation of the shoots reduces internal relations in the shoot system of a plant (Savinykh & Cheryomushkina, 2015), on one hand, and continues to contribute to increase in total area of assimilating surface of the system of anchor shoots on the other hand.…”

Section: Discussionmentioning

confidence: 99%

“…We took into account phenophase, depth of growth, temperature of water and soil characteristics. In the study, we used standard ontogenetic and comparative-morphological methods of study (Savinykh & Cheryomushkina, 2015), widely used in the study of aquatic and shoreline-aquatic plants.…”

Section: Methodsmentioning

confidence: 99%

“…One of the most important directions in research on life strategy of species is study of a broad range of question in plant biology, where one of leading aspects is ontogenesis (Zhukova & Glotov, 2001;Savinykh & Cheryomushkina, 2015;Zhukova et al, 2016;Logofet et al, 2017;Lapirov et al, 2018). Knowledge on specifics and polyvariance of individual development of plants contributes to integrated understanding of morphological adaptations of plants.…”

Section: Introductionmentioning

confidence: 99%

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Ontogenesis of the genets and ramets of some European species of the genus Sparganium subgenus Xanthosparganium

Belyakov

Lapirov

2019

Regul. Mech. Biosyst.

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Representatives of the Sparganium L. genus belong to an ecological group of short grass helophytes which live in the shoreline area of different water bodies. Despite the fact that most representatives of the genus exhibit notable polymorphism (depending on the level regime of a water body, they can form various ecological forms), characteristic of all of them is presence of only one living form – vegetative mobile clear polycentric long-rhizomatous pseudoannual polycarpic plant with racemose root system. The objective of the article was to study the ontogenesis of genets and ramets on the example of representatives of the Xanthosparganium subgenus (S. emersum Rehm., S. glomeratum (Laest. ex Beurl.) Neum., S. gramineum Georgi and S. natans L.). The research was conducted using the ontogenetic approach. In the study, we analyzed ontogenesis of genet (from generative diaspore) and ontogenesis of ramets (from vegetative diaspores – tuber-like structures and axillary buds of vegetative-generative monocarpic and vegetative rosette shoots). We demonstrated that ontogenesis of genets and ramets (on the basis of tuber-like structures) in laboratory conditions is abrupt. It was found that the model species of Sparganium are characteristic in combining of incomplete and special ontogenesis, which is related to the omission of phases of the post-generative period. Such peculiarity is conditioned by increase in tempi of ontogenetic development. On the basis of specific ontogenesis, a variant of shortened ontogenesis is possible, during which the virginile ontogenetic condition is omitted. This feature could be characterized as dynamic polyvariance of ontogenesis, whereas bud initiation and development of shoots throughout the vegetative season, characterized as heterochrony, has been formed over the process of natural selection. Heterochrony (on the basis of iterative branching without periods of rest) includes a property of formation of vegetative-generative shoots which develop on the basis of sylleptic shoots of subsequent orders of branching. The main course of ontogenesis in natural conditions corresponds to D-type which occurs in order of generations of individuals of vegetative origin.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Ontogenesis of the genets and ramets of some European species of the genus Sparganium subgenus Xanthosparganium

Belyakov

Lapirov

2019

Regul. Mech. Biosyst.

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“…When determining a life form, I. G. Serebryakov's [8] ecological-morphological classification of life forms and G N. Vysotskiy's [4] classification based on vegetative mobility pattern and ways of vegetative propagation of plants were used. The notions of morphogenesis phases were also used [10,11,12]. Ontogenesis was studied in accordance with the concept of discrete description proposed by T.A.…”

Section: Prospects Of Development and Challenges Of Modern Botanymentioning

confidence: 99%

Features of development of the clonal plant Scutellaria scordiifolia Fischer ex Schrank (Lamiaceae) in Siberia

Гусева

2018

BIO Web Conf.

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Ontomorphogenesis of individuals of the clonal stoloniferous vegetative annual plant Scutellaria scordiifolia was studied in natural habitats. Ramets are represented by partial dicyclic shoots with an adventious root system. The ontogenesis of S. scordiifolia can be expressed by a sequence of phases of morphogenesis: [a partial shoot – a branched partial shoot] (v–g3) – a system of partial shoots (g2–g3) – a partial shoot (g2–ss). Individuals annually die off completely, regeneration takes place due to formation of tuberous stolons which are formed on the maternal stolon.

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“…Для характеристики процесса прорастания использовали следующие основные показатели: лаг времявремя в днях между началом эксперимента и началом прорастания; конечное прорастаниепроцент проросших семян в конце эксперимента; энергия прорастанияпроцент проросших семян в течение 7 дней; период прорастанияколичество дней, в течение которых семена прорастают (Belyakov and Lapirov, 2015). В работе применяли онтогенетический и сравнительно-морфологический (Savinykh and Cheryomushkina, 2015) методы исследования, используемые при изучении водных и прибрежно-водных растений.…”

Section: таблицаunclassified

Ecology of seed germination and features of ontogeny of floating mat-forming hygrogelophyte Calla palustris (Araceae) under laboratory conditions

2017

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This article examines the ecology of germination and the features of ontogenesis of the floating mat-forming hygrogelophyte Calla palustris L. in the territory of some regions in the central part of European Russia and the Republic of Belarus under laboratory conditions. It has been found that in the surveyed territory in the dense ear-like collective fruit of C. palustris, 40.7 ± 6.4 fruits, juicy berries, are formed and the number of seeds produced (actual seed productivity), averages 164.0 ± 89.3. Widely varying data on the number of berries in the collective fruit, as well as a variable number of ovules in them, shows that the seed productivity of C. palustris depends on a whole range of endogenous and exogenous factors, including the effectiveness of pollination of flowers by insects. In laboratory experiments, various storage periods (2 and 12 months) and methods of presowing seed treatment (stratification, drying, ice-freezing) were applied to simulate the ecological conditions of the growth of white alder. It is shown that freshly harvested seeds do not germinate at once, and wet cold stratification makes it possible to achieve maximum values of laboratory germination (from 84.4 to 99.0) and germination energy (from 66.6 to 88.3). Given that the features of germination are indicators of dormancy, it is demonstrated that seeds of C. palustris are in a state of shallow physiological dormancy, conditioned by the physiological mechanism of inhibition. Along with dry storage, wet cold stratification is the main way for seeds to enter a non-dormant state. Such mechanisms are consistent with the climatic features of the regions in which the species grows. It is found that C. palustris seeds, in common with many other species of hygrogelophytes, can float on the water surface for a long time (more than 30 days), spreading with water flow (hydrochoria). Seeds of C. palustris are photosensitive, germination is observed in a wide range of temperatures – from 10–14 to 30 ºС (at constant humidity), type of germination – underground (hypogeal). It is found that ontogeny of individuals of generative origin of C. palustris in the laboratory is terminated (the plants died after passing the juvenile ontogenetic state). The formation of C. palustris seedlings under laboratory conditions lasts 23–25 days and is characterized by the appearance of the main organs of the plant and the anisotropic growth of the shoot axis. At the final stage of development, the seedling is represented by a uniaxial monopodial and anisotropic growing rosette shoot with shortened internodes. The juvenile ontogenetic state in laboratory conditions lasts up to 7 months, after which the plants die off. In the framework of ontomorphogenesis, the stages of ontogenetic development under study (the seedling and the juvenile plant) correspond to the phase of the primary uniaxial rosette shoot. The plant in this period is represented by a uniaxial monopodially growing anchorage shoot. The detection of virgin plants in natural conditions indicates the possibility of their further development from the rudiments of generative origin. The main way of the species reproduction is vegetative, characteristic of most aquatic and semi-aquatic plants. In the course of ontogenesis, progressive features of development such as cotyledon greening and early death of the radicle root have been revealed.

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Biomorphology: Current status and prospects

Cited by 24 publications

References 1 publication

Ontogenesis of the genets and ramets of some European species of the genus Sparganium subgenus Xanthosparganium

Ontogenesis of the genets and ramets of some European species of the genus Sparganium subgenus Xanthosparganium

Features of development of the clonal plant Scutellaria scordiifolia Fischer ex Schrank (Lamiaceae) in Siberia

Ecology of seed germination and features of ontogeny of floating mat-forming hygrogelophyte Calla palustris (Araceae) under laboratory conditions

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