Results 31 to 40 of about 117,171 (306)

A specific group of genes respond to cold dehydration stress in cut Alstroemeria flowers whereas ambient dehydration stress accelerates developmental senescence expression patterns [PDF]

open access: yes, 2010
Petal development and senescence entails a normally irreversible process. It starts with petal expansion and pigment production, and ends with nutrient remobilization and ultimately cell death.
Aharoni   +75 more
core   +2 more sources

Great Diversity of Insect Floral Associates May Partially Explain Ecological Success of Poison Ivy (\u3ci\u3eToxicodendron Radicans\u3c/i\u3e Subsp. \u3ci\u3eNegundo\u3c/i\u3e [Greene] Gillis, Anacardiaceae) [PDF]

open access: yes, 2018
Little is known about insect floral associates of poison ivy (Toxicodendron radicans, Anacardiaceae), despite the species’ ubiquity and importance in nature and society.
Senchina, David S, Summerville, Keith S
core   +2 more sources

Heteranthery in Clarkia: pollen performance of dimorphic anthers contradicts expectations. [PDF]

open access: yes, 2019
Premise of the studyWild plant species that require the services of pollen-feeding insects for reliable pollination may evolve features that attract and reward their mutualistic partners.
Buchmann S. L.   +4 more
core   +1 more source

Agrobacterium-mediated vacuum infiltration and floral dip transformation of rapid-cycling Brassica rapa

open access: yesBMC Plant Biology, 2019
Background Rapid-cycling Brassica rapa (RCBr), also known as Wisconsin Fast Plants, are small robust plants with a short lifecycle that are widely used in biology teaching.
Die Hu   +3 more
doaj   +1 more source

Floral biology of Avena strigosa

open access: yes, 2021
Black oat is a plant of multiple uses in the agricultural system, however breeding programs have little success in getting new genotypes, without knowing the exact reason, so this study had the goal to characterize the floral morphology and to evaluate if there is variability in Avena strigosa in its pollen viability.
Bonfante, Natália Oliveira   +3 more
openaire   +2 more sources

Floral biology of cacauhy (Theobroma speciosum - Malvaceae)

open access: yesBrazilian Archives of Biology and Technology, 2010
In the present work, cacauhy's (Theobroma speciosum) floral biology was studied. Flower buds split their sepals at 14h reaching its maximum at 22h, but all flowers were fully opened at 6:00 h of the following morning.
Márcio Silva de Souza   +1 more
doaj   +1 more source

Mutations in the PERIANTHIA gene of Arabidopsis specifically alter floral organ number and initiation pattern [PDF]

open access: yes, 1996
An open question in developmental biology is how groups of dividing cells can generate specific numbers of segments or organs. We describe the phenotypic effects of mutations in PERIANTHIA, a gene specifically required for floral organ patterning in ...
Meyerowitz, Elliot M., Running, Mark P.
core  

FLOWERING LOCUS C -dependent and -independent regulation of the circadian clock by the autonomous and vernalization pathways [PDF]

open access: yes, 2006
Background The circadian system drives pervasive biological rhythms in plants. Circadian clocks integrate endogenous timing information with environmental signals, in order to match rhythmic outputs to the local day/night cycle.
Amasino, Richard M.   +5 more
core   +4 more sources

Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity

open access: yesMolecular Oncology, EarlyView.
Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung   +17 more
wiley   +1 more source

Verhuellia is a segregate lineage in Piperaceae: more evidence from flower, fruit and pollen morphology, anatomy and development [PDF]

open access: yes, 2010
Background and Aims The perianthless Piperales, i.e. Saururaceae and Piperaceae, have simple reduced flowers strikingly different from the other families of the order (e.g. Aristolochiaceae).
Goetghebeur, Paul   +7 more
core   +3 more sources

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