Труды сотрудников ИЛ им. В.Н. Сукачева СО РАН

[Text] / N. E. Noskova, I. N. Tretyakova, E. N. Muratova // Biol. Bull. - 2009. - Vol. 36, Is. 3. - P317-322, DOI 10.1134/S1062359009030133. - Cited References: 19. - This work was supported by the Russian Foundation for Basic Research (project no. 02-04-48168). . - 6. - ISSN 1062-3590РУБ Biology

Аннотация: The prolongation of the warm season during autumn, which has become typical for Siberia in the past 5-6 years, has caused changes in the terms of reproductive processes in microsporangia of Scotch pine in the Krasnoyarsk region. Meiosis has started to begin in the autumn of the year preceding pollination, and then come to an end the next spring, whereas usually this process has occurred in the spring of the year of pollination. Under such conditions the division of microsporocytes is accompanied by different abnormalities, causing various anomalies and the incomplete development of pollen grains.

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Держатели документа:
[Noskova, N. E.
Tretyakova, I. N.
Muratova, E. N.] Russian Acad Sci, Sukachev Inst Forestry, Siberian Branch, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Noskova, N.E.; Tretyakova, I.N.; Muratova, E.N.; Russian Foundation for Basic Research [02-04-48168]

/ L. I. Romanova, I. N. Tret'yakova // Ontogenez. - 2005. - Vol. 36, Is. 2. - С. 128-134 . - ISSN 0475-1450
Аннотация: Studies of microsporogenesis in the Siberian larch growing in Krasnoyarsk and its suburbs have shown that meiosis starts in October. Microsporocytes winter at prophase I (leptoneme, diploneme). Reduction divisions in male generative buds are resumed and terminated in spring, in March. However, in the case of thaws during the autumn-winter period, meiotic division proceeds in the larch buds and this leads to the formation of degrading tetrads and pollen. Hence, the organic quiescence is absent in the larch in winter. It was shown that in the larch growing in the city, meiosis proceed more asynchronously than in the background tree stands. An increase of chromosomal aberrations during the reduction division was noted under the conditions of technogenic pollution.

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Держатели документа:
Siberian State Technological University, pr. Mira 82, Krasnoyarsk, 660049, Russian Federation
Sukachev Institute of Forest, Siberian Branch of the Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Romanova, L.I.; Tret'yakova, I.N.