scholarly journals Different Phototransduction Kinetics of Phytochrome A and Phytochrome B in Arabidopsis thaliana

1998 ◽  
Vol 116 (4) ◽  
pp. 1533-1538 ◽  
Author(s):  
Jorge J. Casal ◽  
Pablo D. Cerdán ◽  
Roberto J. Staneloni ◽  
Laura Cattaneo
Keyword(s):  
Arabidopsis Thaliana ◽  
Phytochrome B ◽  
Phytochrome A ◽  
Kinetics Of

scholarly journals Regulation of phytochrome B signaling by phytochrome A and FHY1 in Arabidopsis thaliana

1999 ◽  
Vol 18 (5) ◽  
pp. 499-507 ◽  
Author(s):  
Pablo D. Cerdan ◽  
Marcelo J. Yanovsky ◽  
F. Carolina Reymundo ◽  
Akira Nagatani ◽  
Roberto J. Staneloni ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Phytochrome B ◽  
Phytochrome A

Both phytochrome A and phytochrome B are required for the normal expression of phototropism in Arabidopsis thaliana seedlings

1997 ◽  
Vol 101 (2) ◽  
pp. 278-282 ◽  
Author(s):  
Abdul-kader Janoudi ◽  
Radomir Konjevic ◽  
Garry Whitelam ◽  
William Gordon ◽  
Kenneth L. Poff
Keyword(s):  
Arabidopsis Thaliana ◽  
Phytochrome B ◽  
Phytochrome A ◽  
Normal Expression

The effects of potassium nitrate and NO-donors on phytochrome A- and phytochrome B-specific induced germination of Arabidopsis thaliana seeds

2002 ◽  
Vol 12 (4) ◽  
pp. 253-259 ◽  
Author(s):  
Ivana Batak ◽  
Marijana Dević ◽  
Zlatko Gibal ◽  
Dragoljub Grubišić ◽  
Kenneth L. Poff ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Sodium Nitroprusside ◽  
Red Light ◽  
Potassium Nitrate ◽  
Organic Nitrates ◽  
Phytochrome B ◽  
Phytochrome A ◽  
No Donors ◽  
Nitrogenous Compounds ◽  
Treated Seed

AbstractNitrogenous compounds, such as potassium nitrate, potentiate germination of different species of light-requiring seeds. Using light-induced Arabidopsis thaliana seed germination as a model system, our data suggested that only phytochrome A (phyA)-specific induced germination was affected after the exogenous application of nitrates, different nitric oxide (NO)-donors (such as organic nitrates) or sodium nitroprusside. The stimulative effect was very pronounced. Treated seed samples reached maximal germination after very short periods of red-light irradiation. To a far lesser extent, these substances affected phytochrome B (phyB)-specific induced germination. In phyB-specific induced germination, potassium nitrate was most effective, but germination percentages never exceeded 50%. The least effective was sodium nitroprusside, which practically did not affect phyB-specific induced germination. These results were confirmed using corresponding phytochrome mutants.

scholarly journals The germination of seeds of Epiphyllum phyllanthus (L.) Haw. (Cactaceae) is controlled by phytochrome and by nonphytochrome related process

2010 ◽  
Vol 10 (1) ◽  
pp. 115-119 ◽  
Author(s):  
Edson Simão ◽  
Adriana Tiemi Nakamura ◽  
Massanori Takaki
Keyword(s):  
Seed Germination ◽  
Wide Temperature Range ◽  
Germination Rate ◽  
Active Form ◽  
High Sensitivity ◽  
Phytochrome B ◽  
Phytochrome A ◽  
Seed Population ◽  
Kinetics Of ◽  
Related Process

The Epiphyllum phyllanthus seeds present high sensitivity to light and their germination can be promoted by dim green safe light through the very low fluence response mediated by phytochrome A. Part of seed population have phytochrome B in active form (Pfr) enough to promote germination in darkness. Seeds of Epiphyllum phyllanthus germinate in a wide temperature range from 10 to 40°C, reaching complete germination in the range of 15 to 30°C. Above 35°C the germination rate increases indicating control by a non phytochrome related process. The analysis of kinetics of seed germination indicated that the phytochrome A control is less dependent on temperature than phytochrome B controlled process.

Both phytochrome A and phytochrome B are required for the normal expression of phototropism in Arabidopsis thaliana seedlings

1997 ◽  
Vol 101 (2) ◽  
pp. 278-282 ◽  
Author(s):  
Abdul-kader Janoudi ◽  
Radomir Konjevic ◽  
Garry Whitelam ◽  
William Gordon ◽  
Kenneth L. Poff
Keyword(s):  
Arabidopsis Thaliana ◽  
Phytochrome B ◽  
Phytochrome A ◽  
Normal Expression

scholarly journals Analysis of the Function of the Photoreceptors Phytochrome B and Phytochrome D in Nicotiana plumbaginifolia and Arabidopsis thaliana

2005 ◽  
Vol 46 (5) ◽  
pp. 790-796 ◽  
Author(s):  
Aurora Piñas Fernández ◽  
Patricia Gil ◽  
Ildiko Valkai ◽  
Ferenc Nagy ◽  
Eberhard Schäfer
Keyword(s):  
Arabidopsis Thaliana ◽  
Nicotiana Plumbaginifolia ◽  
Phytochrome B
Sign in / Sign up

Export Citation Format

Share Document