Zobrazeno 1 - 10
of 14
pro vyhledávání: '"J. A. Tarkowska"'
Autor:
J. A. Tarkowska
Publikováno v:
Acta Societatis Botanicorum Poloniae, Vol 40, Iss 4, Pp 623-631 (2015)
The effect of water extract from leaves of Nerium oleander L. on the mitosis in meristematic cells of Allium cepa L. root tips has been studied. Observations were made on the changes during incubation and postincubation. Significant disturbances were
Externí odkaz:
https://doaj.org/article/27c466152fc44fd899b43ed2c5607788
Autor:
J. A. Tarkowska
Publikováno v:
Acta Societatis Botanicorum Poloniae, Vol 44, Iss 3, Pp 451-460 (2015)
The effect of water solution of a mixture of glycosides from oleander (Nerium oleander L.) on the germination of pollen grains and on the mitosis of the generative nucleus in Tradescantia bracteata Small and Allium cepa L. has been studied. An inhibi
Externí odkaz:
https://doaj.org/article/0e55c21b0cb242aa81e3df1cdbcdf8a8
Autor:
J. A. Tarkowska, K. B. Domańska
Publikováno v:
Acta Societatis Botanicorum Poloniae, Vol 44, Iss 4, Pp 589-595 (2015)
The effect of a mixture of edeins in water solution on the meristematic activity of Allium cepa L. root tips was studied during the incubation and postincubation periods. Reduction of the elongation growth of the root tips and a strong decrease in. t
Externí odkaz:
https://doaj.org/article/5221718a7243473c9ac4745646d24065
Autor:
J. A. Tarkowska
Publikováno v:
Acta Societatis Botanicorum Poloniae, Vol 48, Iss 3, Pp 381-389 (2015)
Dividing endosperm cells of Haemanthus katherinae Bak., treated with 0.025 per cent aqueous solution of a mixture of glycosides from Nerium oleander were examined in vitro in the light and in the electron microscope. A high hypertrophy of endoplasmic
Externí odkaz:
https://doaj.org/article/43100d7dd8c642cb9367c55703429376
Autor:
J. A. Tarkowska
Publikováno v:
Acta Societatis Botanicorum Poloniae, Vol 47, Iss 4, Pp 411-416 (2015)
Dividing endosperm cells of Haemanthus katherinae Bak. were treated with an 0.025 per cent aqueous solution of an oleander glycosides mixture which produces severe disturtaances in the mitotic spindle and high hypertrophy of the endoplasmic reticulum
Externí odkaz:
https://doaj.org/article/9b5a6319c5954ae890b31a053e88d4d4
Autor:
J. A. Tarkowska
Publikováno v:
Acta Societatis Botanicorum Poloniae, Vol 45, Iss 3, Pp 271-283 (2015)
The effect of oleander glycosides on dividing endosperm cells of Haemanthus katherine was investigated in vitro. The disturbances in the successive cell division phases were analysed in reference to cytokinesis. A strong tendency was noted to restitu
Externí odkaz:
https://doaj.org/article/91b1aef596be45f79d85431f6d824f72
Publikováno v:
Acta Societatis Botanicorum Poloniae, Vol 44, Iss 4, Pp 637-647 (2015)
The effect of aqueous solutions of a 0.1 per cent mixture of oleander glycosides and of 0.1 and 0.5 per cent colchicine on the growth of seedlings, and particularly on the development of stomata was investigated in Hordeum vulgare L. The compounds we
Externí odkaz:
https://doaj.org/article/54a62be21ece4ed2a7fe5f9cd3a0e3a7
Publikováno v:
Acta Societatis Botanicorum Poloniae, Vol 63, Iss 3-4, Pp 265-268 (2014)
The development of protoplast derived from somatic embryos and some of their characteristics were compared with embryos from suspension and in vivo in the same B line. Embryos formed in a protoplast culture differed from others that their younger sta
Externí odkaz:
https://doaj.org/article/1b2df46436d746bdb726201c03641b24
Publikováno v:
Acta Societatis Botanicorum Poloniae, Vol 63, Iss 3-4, Pp 259-263 (2014)
Under in vivo conditions early-globular embryos occur in cucumber on the 9th day after pollination, heart-shaped ones on the 14th, and morphologically mature embryos appear on the 19th day. Single starch grains already appear in the cells of the glob
Externí odkaz:
https://doaj.org/article/b78ff6ca099b471493cb600442aeb19e
Autor:
K. B. Domańska, J. A. Tarkowska
Publikováno v:
Acta Societatis Botanicorum Poloniae, Vol 44, Iss 4, Pp 589-595 (2015)
The effect of a mixture of edeins in water solution on the meristematic activity of Allium cepa L. root tips was studied during the incubation and postincubation periods. Reduction of the elongation growth of the root tips and a strong decrease in. t