Buscar
Mostrando ítems 1-10 de 147
Extracellular ATP, nitric oxide and superoxide act coordinately to regulate hypocotyl growth in etiolated Arabidopsis seedlings
(Elsevier Gmbh, 2009-12)
Etiolated Arabidopsis thaliana seedlings germinated in the presence of reducing buffers such as reduced gluthathione (GSH) and dithiothreitol (DTT) have altered morphology. GSH and DTT inhibited hypocotyl elongation in a ...
Convergence of constitutive photomorphogenesis 1 and phytochrome interacting factor signalling during shade avoidance
(Wiley, 2016-04)
Shade-avoidance responses require CONSTITUTIVE PHOTOMORPHOGENESIS 1 (COP1) but the mechanisms of action of COP1 under shade have not been elucidated. Using simulated shade and control conditions, we analysed: the transcriptome ...
Arabidopsis thaliana HomeoBox 1 (AtHB1), a Homedomain-Leucine Zipper I (HD-Zip I) transcription factor, is regulated by PHYTOCHROME-INTERACTING FACTOR 1 to promote hypocotyl elongation
(Wiley Blackwell Publishing, Inc, 2015-08)
Arabidopsis thaliana HomeoBox 1 (AtHB1) is a homeodomain-leucine zipper transcription factor described as a transcriptional activator with unknown function. Its role in A. thaliana development was investigated. AtHB1 ...
Class I TCP proteins TCP14 and TCP15 are required for elongation and gene expression responses to auxin
(Springer, 2020-09)
In this work, we analyzed the response to auxin of plants with altered function of the class I TEOSINTE BRANCHED 1, CYCLOIDEA, PCF (TCP) transcription factors TCP14 and TCP15. Several SMALL AUXIN UP RNA (SAUR) genes showed ...
Late seed maturation improves the preservation of seedling emergence during storage in soybean(1)
(Abrates-assoc Brasileira Technologia Sementes, 2018-04-01)
Long-term survival during dry storage or longevity is a pre-requisite to avoid deterioration, leading to loss of vigor. Longevity is routinely evaluated by the ability to germinate after storage. It increases progressively ...
Supraoptimal ethylene acts antagonistically with exogenous gibberellins during Solanum lycopersicum (Solanaceae) hypocotyl growthDosis supraóptimas de etileno actúan antagónicamente con giberelinas exógenas durante el crecimiento del hipocótilo de Solanum lycopersicum (Solanaceae)
(Sociedad Argentina de Botánica, 2016-02)
In many plant species ethylene and gibberellins interact to regulate plant growth and development. In some cases, these hormones can act in a synergistic way whereas in others they can be antagonistic. To date, the control ...
Repression of shade-avoidance reactions by sunfleck induction of HY5 expression in Arabidopsis
(Wiley Blackwell Publishing, Inc, 2011-10)
The light environment provides signals that play a critical role in the control of stem growth in plants. The reduced irradiance and altered spectral composition of shade light promote stem growth compared with unfiltered ...
Rapid decline in nuclear costitutive Photomorphogenesis1 abundance anticipates the stabilization of its target elongated Hypocotyl5 in the light
(American Society Of Plant Biologist, 2014-01)
In darkness, the E3 ligase COSTITUTIVE PHOTOMORPHOGENESIS1 (COP1) targets to degradation ELONGATED HYPOCOTYL5 (HY5) and other proteins required for photomorphogenesis (Osterlund et al., 2000a; Saijo et al., 2003; Seo et ...
Azospirillum growth promotion is related to changes in ferulate and dehydrodiferulate contents in cell wall of inoculated cucumber seedlings hypocotyls
(2015-06)
Azospirillum brasilense is a well known plant growth-promoting rhizobacterium. Plant cell growth is constrained by the primary cell wall (CW) which contains polysaccharide-bound hydroxycinammic acids (HCAs). They derive ...