Effect of temperature stress on the endogenous cytokinin content in Arabidopsis thaliana (L.) Heynh plants

According to the practical physical dimension and processing parameters of ladle with bottom gas blowing in a factory, a geometrical model was established and mesh structure was completed, Eulerian multiphase model and porous media model were adopted for the two-phase flow in ladle, which was coupled, the effect of temperature field and thermal stress in course of working process of permeable- gas refractory ceramic was studied by finite element approach. The correlations between processing, structure, and high-temperature mechanical properties were discussed, and the material and structure of permeable-gas ceramic were designed to optimum. The results show that: The steady gas flow rate can avoid wearing of permeable-gas refractory ceramic from cataclysm of temperature-stress; After the material and structure of permeable-gas refractory ceramic are optimized, the effect on ceramic wearing of temperature-stress in condition of oxygen washing is weakened. It is an important guiding for prepara- tion of permeable-gas refractory ceramic with long life, which will make for highly active refining ladle.

Download Full-text

Effect of Temperature on Growth and Phototropism of Arabidopsis thaliana Seedlings

Journal of Plant Growth Regulation ◽

10.1007/s00344-007-9009-4 ◽

2007 ◽

Vol 26 (3) ◽

pp. 222-228 ◽

Cited By ~ 9

Author(s):

Vladimir Orbović ◽

Kenneth L. Poff

Keyword(s):

Arabidopsis Thaliana ◽

Effect Of Temperature

Download Full-text

Influence of White Clover Mosaic Potexvirus Infection on the Endogenous Cytokinin Content of Bean

PLANT PHYSIOLOGY ◽

10.1104/pp.120.2.547 ◽

1999 ◽

Vol 120 (2) ◽

pp. 547-552 ◽

Cited By ~ 20

Author(s):

Sean Francis Clarke ◽

Marian Jane McKenzie ◽

David John Burritt ◽

Paul Leslie Guy ◽

Paula Elizabeth Jameson

Keyword(s):

White Clover ◽

Endogenous Cytokinin ◽

Cytokinin Content

Download Full-text

Growth temperature affects inflorescence architecture in Arabidopsis thaliana

Botany ◽

10.1139/cjb-2013-0011 ◽

2013 ◽

Vol 91 (9) ◽

pp. 642-651 ◽

Cited By ~ 5

Author(s):

Marlène Antoun ◽

François Ouellet

Keyword(s):

Arabidopsis Thaliana ◽

Growth Temperature ◽

Effect Of Temperature ◽

Maximum Height ◽

Temperature Dependent ◽

Phenotypic Analysis ◽

Inflorescence Development ◽

Extensive Analysis ◽

Adverse Environmental Conditions ◽

Floral Meristems

Plants adjust their growth and development to ensure survival under adverse environmental conditions. Nonoptimal growth temperatures can have a major impact on biomass and crop yield. A detailed phenotypic analysis (number and length of rosette and cauline branches, flowers, and buds) in Arabidopsis thaliana revealed that growth temperatures below (12 and 17 °C) and above (27 and 32 °C) the control 22 °C affect branching and flowering. The elongation of internodes on the main stem and of primary branches at cauline leaves is reduced at lower temperatures and increased at higher temperatures. Similar results are observed in plants treated before or after bolting. Our data therefore indicate that plants that have transitioned to the reproductive stage before treatment are slightly less affected by temperature variations than plants that are in their vegetative stage. Our results also suggest that plants need to reach a maximum height (internodes length) before they begin forming floral meristems and that this “maximum height” is dependent on the growth temperature. Plants grown at 17 °C show a slightly reduced branching, while those at 27 °C show increased branching. This suggests that apical dominance is a temperature-dependent phenomenon. This is, to our knowledge, the first extensive analysis of the effect of temperature on Arabidopsis inflorescence development.

Download Full-text