scholarly journals Ethylene Interacts with Abscisic Acid to Regulate Endosperm Rupture during Germination: A Comparative Approach Using Lepidium sativum and Arabidopsis thaliana

2009 ◽  
Vol 21 (12) ◽  
pp. 3803-3822 ◽  
Author(s):  
Ada Linkies ◽  
Kerstin Müller ◽  
Karl Morris ◽  
Veronika Turečková ◽  
Meike Wenk ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Abscisic Acid ◽  
Lepidium Sativum ◽  
Comparative Approach

Arabidopsis thaliana lipid phosphate phosphatase 2 is involved in abscisic acid signalling in leaves

2011 ◽  
Vol 49 (3) ◽  
pp. 357-362 ◽  
Author(s):  
Sophie Paradis ◽  
Ana Laura Villasuso ◽  
Susana Saez Aguayo ◽  
Régis Maldiney ◽  
Yvette Habricot ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Abscisic Acid ◽  
Lipid Phosphate

scholarly journals Brassinosteroids repress the seed maturation program during the seed-to-seedling transition

2021 ◽  
Author(s):  
Jiuxiao Ruan ◽  
Huhui Chen ◽  
Tao Zhu ◽  
Yaoguang Yu ◽  
Yawen Lei ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Transcription Factor ◽  
Abscisic Acid ◽  
Plant Hormone ◽  
Flowering Plants ◽  
Seed Maturation ◽  
Domain Protein ◽  
Abscisic Acid Insensitive3 ◽  
Underlying Mechanisms ◽  
Embryonic Structure

Abstract In flowering plants, repression of the seed maturation program is essential for the transition from the seed to the vegetative phase, but the underlying mechanisms remain poorly understood. The B3-domain protein VIVIPAROUS1/ABSCISIC ACID-INSENSITIVE3-LIKE 1 (VAL1) is involved in repressing the seed maturation program. Here we uncovered a molecular network triggered by the plant hormone brassinosteroid (BR) that inhibits the seed maturation program during the seed-to-seedling transition in Arabidopsis (Arabidopsis thaliana). val1-2 mutant seedlings treated with a BR biosynthesis inhibitor form embryonic structures, whereas BR signaling gain-of-function mutations rescue the embryonic structure trait. Furthermore, the BR-activated transcription factors BRI1-EMS-SUPPRESSOR 1 and BRASSINAZOLE-RESISTANT 1 bind directly to the promoter of AGAMOUS-LIKE15 (AGL15), which encodes a transcription factor involved in activating the seed maturation program, and suppress its expression. Genetic analysis indicated that BR signaling is epistatic to AGL15 and represses the seed maturation program by downregulating AGL15. Finally, we showed that the BR-mediated pathway functions synergistically with the VAL1/2-mediated pathway to ensure the full repression of the seed maturation program. Together, our work uncovered a mechanism underlying the suppression of the seed maturation program, shedding light on how BR promotes seedling growth.

Bacterial Quorum-Sensing Signaling-Related drr1 Mutant Influences Abscisic Acid Responsiveness in Arabidopsis thaliana L.

2021 ◽  
Author(s):  
Salvador Barrera-Ortiz ◽  
Claudia Marina López-García ◽  
Randy Ortiz-Castro ◽  
Ángel Arturo Guevara-García ◽  
José López-Bucio
Keyword(s):  
Arabidopsis Thaliana ◽  
Abscisic Acid ◽  
Quorum Sensing ◽  
Bacterial Quorum Sensing ◽  
Bacterial Quorum

Natürliche Hemmstoffe von Keimung und Wachstum, I Ausarbeitung eines quantitativen Biotests und Anwendung auf Extrakte aus Spelzen von Avena sativa L. / Natural Inhibitors of Germination and Growth, I. Development of a Quantitative Biotest and Application upon Extracts from Husks of Avena sativa L.

1982 ◽  
Vol 37 (9) ◽  
pp. 793-801 ◽  
Author(s):  
Rudolf Karl ◽  
Wolfhart Rüdiger
Keyword(s):  
Abscisic Acid ◽  
Root Growth ◽  
Organic Acids ◽  
Avena Sativa ◽  
Inhibitory Activity ◽  
Lepidium Sativum ◽  
Carbonic Acids ◽  
Germination And Growth ◽  
Natural Inhibitors ◽  
Lepidium Sativum L

Extracts from oat husks inhibit germination of a variety of seeds including Avena sativa L., Sorghum spec., Phalleris spec., Raphanus spec., Amaranthus caudatus, Lepidium sativum L. A quantitative assay for this inhibition was developed on the basis of percentage of root growth of Avena in the presence of extracted material compared with root growth of water controls. Fractionation of the extracts revealed that about half of the total inhibitory activity was found in the fraction of free organic acids. The inhibition was not due to known inhibitors. Abscisic acid. was not found in this extract. Phenole carbonic acids were determined in the extract. Their con­centration was too low to significantly contribute to the observed inhibitory activity.

scholarly journals NADP-Dependent Malic Enzyme 1 Participates in the Abscisic Acid Response in Arabidopsis thaliana

2018 ◽  
Vol 9 ◽  
Author(s):  
Cintia L. Arias ◽  
Tatiana Pavlovic ◽  
Giuliana Torcolese ◽  
Mariana B. Badia ◽  
Mauro Gismondi ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Abscisic Acid ◽  
Malic Enzyme

Evidence of a role for tyrosine dephosphorylation in the control of postgermination arrest of development by abscisic acid in Arabidopsis thaliana L

Planta ◽  
2005 ◽  
Vol 223 (2) ◽  
pp. 381-385 ◽  
Author(s):  
David Reyes ◽  
Dolores Rodríguez ◽  
Gregorio Nicolás ◽  
Carlos Nicolás
Keyword(s):  
Arabidopsis Thaliana ◽  
Abscisic Acid

scholarly journals Abscisic acid-mediated developmental flexibility of stigmatic papillae in response to ambient humidity in Arabidopsis thaliana

2018 ◽  
Vol 93 (5) ◽  
pp. 209-220 ◽  
Author(s):  
Seiji Takeda ◽  
Kohki Ochiai ◽  
Yasuaki Kagaya ◽  
Wataru Egusa ◽  
Hiroaki Morimoto ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Abscisic Acid ◽  
Ambient Humidity ◽  
Stigmatic Papillae

EFFECTS OF DIFFERENT AFTER-RIPENING TREATMENTS ON GERMINATION AND ENDOGENOUS GROWTH INHIBITORS IN ROSA RUGOSA

1972 ◽  
Vol 52 (6) ◽  
pp. 1049-1058 ◽  
Author(s):  
F. J. SVEJDA ◽  
P. A. POAPST
Keyword(s):  
Abscisic Acid ◽  
Effective Treatment ◽  
Endogenous Growth ◽  
Lepidium Sativum ◽  
Growth Inhibitors ◽  
Germination Inhibitors ◽  
Rosa Rugosa ◽  
Ripening Period ◽  
Retarding Effect ◽  
Lepidium Sativum L

The concentration of growth and germination inhibitors in achenes from seedlings of R. rugosa Thunberg is reduced through leaching. Leaching of achenes for 24 hr before stratification increased the germination but the effect of leaching was not always significant. The presence of inhibitors was indicated between Rf 0.3–0.4 and Rf 0.7–0.9 by the retarding effect on radicle elongation of cress seeds (Lepidium sativum L. cult Moss Curled) when extracts of achenes were developed on ascending paper chromatograms (isopropanol:ammonia:water, 10:1:1, v/v). Changed concentrations of the inhibitor between Rf 0.7 and 0.9 from different after-ripening treatments did affect the germination of the achenes but the changed concentrations of the inhibitor between Rf 0.3 and 0.4 did not. Presumably, the inhibitor between Rf 0.7 and 0.9 was abscisic acid. Warm–cold treatments promoted germination more effectively than cold treatments. The most effective treatment was 4 weeks at 20 C and 8 weeks at 4 C. Both cold and warm–cold after-ripening seemed to promote germination through a reduction of growth inhibitors. Inhibitors do not control the germination of rose achenes exclusively because: (a) leaching reduced the concentration of inhibitors but it did not induce germination without after-ripening treatments; (b) partial after-ripening for 4 weeks at 20 C also reduced the concentration of inhibitors but it did not induce germination unless it was followed by an after-ripening period of 4 C; (c) after-ripened achenes germinated in spite of inhibitors.

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