11 research outputs found
Peculiarities of symbiotic and non-symbiotic reproduction of orchids
No full textThe one of well developed methods of reproduction of orchids is seed reproduction in vitro. Two methods – symbiotic and non-symbiotic – are common for seed germination of Orchidaceae in sterile culture. Large experience in orchids reproduction is accumulated and numerous theoretical and practical studies of orchids reproduction are conducted, but despite that the work of further improvement in methods and reproduction conditions and ascertaining of particularities of seedlings germinations of different species of Orchidaceae are continued
Сучасний стан досліджень особливостей симбіотичного та асимбіотичного розмноження орхідних
No full textThe one of well developed methods of reproduction of orchids is seed reproduction in vitro. Two methods – symbiotic and non-symbiotic – are common for seed germination of Orchidaceae in sterile culture. Large experience in orchids reproduction is accumulated and numerous theoretical and practical studies of orchids reproduction are conducted, but despite that the work of further improvement in methods and reproduction conditions and ascertaining of particularities of seedlings germinations of different species of Orchidaceae are continued
Contribution of T.M. Cherevchenko to the development of space biology
No full textThe results of many years investigation of T.M. Cherevchenko in study of peculiarities of artificial biogeocenosis functioning in the model experiments using clinostate and hermeticcaly sealed container under the conditions of space flight are given
Functional relation of Actinidia species phytohormonal status with regeneration ability and sex of plants
No full textEndogenous content of phytohormones has been investigated in one-year shoots of different actinidia species, which were introduced in Ukraine. Relationship between phytohormon status of plants and their ability to rooting was established. One of the main factors, which takes influence on plant regeneration ability for reproduction by green stem cuttings is a relation between endogenous auxins, cytokinins and abscisic-acid in actinidia shoots. Actinidia female plants have greater ratio of phytohormonal balance than male ones. This testifies to functional relation between sex and a ratio of endogenous content of stimulants and ingibitors in the plants
Gibberelin-like substances in regeneration and sex differentiation processes of actinidia plants
No full textThe presence of connection between regeneration ability of different species of Actinidia shoots and the activity of gibberelin like substances (GLS) were investigated. The content of GLS in four species: Actinidia arguta (Siebold et. Zucc.) Planch. ex Miq., A. poligama (Siebold et. Zucc.) Miq., A. kolomikta Maxim, A. chinensis Planch. was studied. The samples of Actinidia have been selected since April till June. GLS’s activity in the investigated species of Actinidia reached 10-6 according to gibberelin acid scale. It was found that the content of these substances in male shoots is greater than in female ones during the whole vegetative period. Female shoots form roots better than male ones. So it is not excluded, that GLS influence on sex differentiation processes of Actinidia, but do not take part in root formation
Phytohormonal complex of Syngonium under the conditions of hermetically sealed conteiner
No full textContent of endogenous phytohormones (IAA, ABA, cytokinins and gibberellins) has been studied in roots and shoots of Syngonium plants after nine months of staying in hermetically sealed container. It was determined that phytohormones content (stimulators and inhibitors) decreased. The obtained results show the relation of lability of hormonal system and adaptive plants properties
Role of phytolectin in the life cycle of plants
No full textIn the review the basic properties of plant lectins and their physio- logical role in the life cycle of plants are considered. There are data on the current state of the researches of phytolectins and lectin-like pro- teins as well as designation of the main directions of further study on the functioning of these proteins in the plant physiological processes.N. V. Kovalchuk, N. M. Melnykova, L. I. Musatenk
Phytohormonal complex of Syngonium under the conditions of hermetically sealed conteiner
No full textContent of endogenous phytohormones (IAA, ABA, cytokinins and gibberellins) has been studied in roots and shoots of Syngonium plants after nine months of staying in hermetically sealed container. It was determined that phytohormones content (stimulators and inhibitors) decreased. The obtained results show the relation of lability of hormonal system and adaptive plants properties
Роль гібереліноподібних речовин у процесах регенерації і диференціації статі рослин актинідії
No full textThe presence of connection between regeneration ability of different species of Actinidia shoots and the activity of gibberelin like substances (GLS) were investigated. The content of GLS in four species: Actinidia arguta (Siebold et. Zucc.) Planch. ex Miq., A. poligama (Siebold et. Zucc.) Miq., A. kolomikta Maxim, A. chinensis Planch. was studied. The samples of Actinidia have been selected since April till June. GLS’s activity in the investigated species of Actinidia reached 10-6 according to gibberelin acid scale. It was found that the content of these substances in male shoots is greater than in female ones during the whole vegetative period. Female shoots form roots better than male ones. So it is not excluded, that GLS influence on sex differentiation processes of Actinidia, but do not take part in root formation
Функціональний зв’язок фітогормонального статусу видів актинідії з регенераційною здатністю і статтю рослин
No full textEndogenous content of phytohormones has been investigated in one-year shoots of different actinidia species, which were introduced in Ukraine. Relationship between phytohormon status of plants and their ability to rooting was established. One of the main factors, which takes influence on plant regeneration ability for reproduction by green stem cuttings is a relation between endogenous auxins, cytokinins and abscisic-acid in actinidia shoots. Actinidia female plants have greater ratio of phytohormonal balance than male ones. This testifies to functional relation between sex and a ratio of endogenous content of stimulants and ingibitors in the plants
