Results 91 to 100 of about 31,221 (236)

Large-effect flowering time mutations reveal conditionally adaptive paths through fitness landscapes in Arabidopsis thaliana. [PDF]

open access: yes, 2019
Contrary to previous assumptions that most mutations are deleterious, there is increasing evidence for persistence of large-effect mutations in natural populations.
Cooper, Martha D   +6 more
core  

Transcriptional Regulation: a Genomic Overview [PDF]

open access: yes, 2002
The availability of the Arabidopsis thaliana genome sequence allows a comprehensive analysis of transcriptional regulation in plants using novel genomic approaches and methodologies. Such a genomic view of transcription first necessitates the compilation
Riechmann, José Luis
core   +2 more sources

Differential response of Palmer amaranth (Amaranthus palmeri) seed germination and seedling emergence under variable environmental conditions

open access: yesAgrosystems, Geosciences &Environment, Volume 9, Issue 2, June 2026.
Abstract Palmer amaranth (Amaranthus palmeri S. Watson) is a eudicot weed that is considered as one of the most problematic weed species. It is reported to overcome several environmental and management stresses under field conditions. Research was conducted in a growth chamber and greenhouse to evaluate the effects of different stress parameters such ...
Sithin Mathew   +5 more
wiley   +1 more source

The role of the seed coat in the light sensivity in Raphanus sativus L. cv. redondo gigante seeds O papel do tegumento na sensibilidade à luz em sementes de Raphanus sativus L. cv. redondo gigante

open access: yesActa Botânica Brasílica, 1997
The role of the seed coat in the light sensitivity of seeds of Raphanus sativus L. cv. redondo gigante was analysed by germination tests of intact and naked seeds. Far-red light caused high inhibition of seed germination, while under white and red lights
Maura Lúcia Costa Gonçalves   +1 more
doaj   +1 more source

The short-lived MATα2 transcriptional regulator is ubiquitinated in vivo [PDF]

open access: yes, 1991
The substrates of ubiquitin-dependent proteolytic pathways include both damaged or otherwise abnormal proteins and undamaged proteins that are naturally short-lived. Few specific examples of the latter class have been identified, however.
Chau, Vincent   +3 more
core  

Traversing the effects of ploidy changes in different Eragrostis curvula genotypes through high‐throughput RNA sequencing

open access: yesThe Plant Genome, Volume 19, Issue 2, June 2026.
Abstract Polyploidization has played a key role in plant genome evolution. Eragrostis curvula (Schrad.) Ness, a perennial forage grass species of the Poaceae family, is an excellent model for investigating genome duplication due to its natural variation in ploidy levels.
D. F. Santoro   +5 more
wiley   +1 more source

Effects of Light and Wounding on Jasmonates in Rice phyAphyC Mutants

open access: yesPlants, 2014
Jasmonates (JA) are lipid-derived plant hormones. They have been shown to be important regulators of photomorphogenesis, a developmental program in plants, which is activated by light through different red and blue light sensitive photoreceptors. In rice,
Rita Brendel   +8 more
doaj   +1 more source

Daytime temperature is sensed by phytochrome B in Arabidopsis through a transcriptional activator HEMERA. [PDF]

open access: yes, 2019
Ambient temperature sensing by phytochrome B (PHYB) in Arabidopsis is thought to operate mainly at night. Here we show that PHYB plays an equally critical role in temperature sensing during the daytime.
Chen, Meng   +4 more
core   +3 more sources

Enhancing the vase life of cut roses through spectral optimisation during greenhouse cultivation

open access: yesAnnals of Applied Biology, Volume 188, Issue 3, Page 656-673, May 2026.
Here, we examined three red‐to‐blue (R:B) light emitting diode (LED) ratios (90:10, 80:20 and 70:30) in two cut rose cultivars. All treatments enhanced photosynthesis, with 90:10 showing the strongest effects—raising chlorophyll, carotenoids, anthocyanins and carbohydrate levels, and extending vase life by up to 30%.
Maryam Davarzani   +6 more
wiley   +1 more source

Asymmetric activation mechanism of a homodimeric red light-regulated photoreceptor

open access: yeseLife, 2018
Organisms adapt to environmental cues using diverse signaling networks. In order to sense and integrate light for regulating various biological functions, photoreceptor proteins have evolved in a modular way.
Geoffrey Gourinchas   +2 more
doaj   +1 more source

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