Results 21 to 30 of about 58,693 (334)

Measurement of plant growth in view of an integrative analysis of regulatory networks [PDF]

, 2015
As the regulatory networks of growth at the cellular level are elucidated at a fast pace, their complexity is not reduced; on the contrary, the tissue, organ and even whole-plant level affect cell proliferation and expansion by means of development ...
Dhondt, Stijn, Inzé, Dirk, Wuyts, Nathalie   +2 more
core   +1 more source

Timing avian long-distance migration: from internal clock mechanisms to global flights [PDF]

, 2017
Migratory birds regularly perform impressive long-distance flights, which are timed relative to the anticipated environmental resources at destination areas that can be several thousand kilometres away.
Helm, Barbara, Ilieva, Mihaela, Karagicheva, Julia, Rakhimberdiev, Eldar, Tomotani, Barbara, Åkesson, Susanne   +5 more
core   +2 more sources

Whole‐genomic DNA amplifications from individually isolated sweet sorghum microspores

Applications in Plant Sciences, Volume 10, Issue 6, November-December 2022., 2022
Abstract Premise Sorghum is a multi‐use crop, the efficient breeding of which requires the development of new genetic tools. One such tool could be the genetic assessment of free microspores, which are released just after the tetrad stage of pollen development.
Aron M. Felts, Bharat Pokharel, Dilovan Yahya, Ahmad N. Aziz   +3 more
wiley   +1 more source

Prediction of photoperiodic regulators from quantitative gene circuit models [PDF]

, 2004
Photoperiod sensors allow physiological adaptation to the changing seasons. The external coincidence hypothesis postulates that a light-responsive regulator is modulated by a circadian rhythm.
A Waring, AJ Laubsch, AM Santomero, AM Santomero, Bank for International Settlements (BIS, Bank of International Settlement, Basle Committee on Banking Supervision, C Bulter, C Culp, C Marshall, Capital Markets Risk Advisers, D Chew, D Silverman, F Stambaugh, GA Ferguson, GN Allport, J Berkowitz, J Bessis, J Boudoukh, J Engel, JF Sinkey, JM Mulvey, JP Bouchaud, JP Morgan, K Cuthbertson, K Dowd, K Dowd, K Thygerson, M Prisker, M Sarma, M Saunders, MCS Wong, MM Cornett, P Christoffersen, P Hague, P Jorion, PD Zecker, PR Dickson, RF Engle, S Heffernn, S Siegel, Stenhouse, Alexander & Co, TS Beder, W Härdle   +43 more
core   +1 more source

Chemical Variability of Hexane Extracts from Five Subspecies of Calendula suffruticosa from Spain

Chemistry &Biodiversity, Volume 19, Issue 12, December 2022., 2022
Abstract The chemical profile of the hexane extracts of the subspecies carbonellii, greuteri, marginata, trialata, and vejerensis of Calendula suffruticosa growing in Spain, herein described for the first time, were studied to access their value as a chemo taxonomical tool and search for potentially useful compounds. The subsp. greuteri and carbonellii
Silvana Ohse, Mariza B. Marques, Paulo C. Silveira, Mónica S. G. A. Válega, Artur M. S. Silva, Diana C. G. A. Pinto   +5 more
wiley   +1 more source

Lighting as a Circadian Rhythm-Entraining and Alertness-Enhancing Stimulus in the Submarine Environment [PDF]

, 2006
The human brain can only accommodate a circadian rhythm that closely follows 24 hours. Thus, for a work schedule to meet the brain’s hard-wired requirement, it must employ a 24 hour-based program.
Bullough, J. D., Crepeau, L. J., Figueiro, M. G., Porter, S., Rea, M. S.   +4 more
core   +1 more source

Spexin in the European sea bass, Dicentrarchus labrax: Characterization, brain distribution, and interaction with Gnrh and Gnih neurons

Journal of Comparative Neurology, Volume 531, Issue 2, Page 314-335, February 2023., 2023
The main objective of this work was to obtain detailed information on the distribution and localization of the spexin (Spx) system in the sea bass brain. To this purpose, we first identified and characterized the spx1 gene and analyzed its expression in the central nervous system (CNS) of the European sea bass by using quantitative Real‐Time Polymerase
José A. Paullada‐Salmerón, Bin Wang, José A. Muñoz‐Cueto   +2 more
wiley   +1 more source

The ecology and quantitative genetics of seed and seedling traits in upland and lowland ecotypes of a perennial grass

Evolution Letters, Volume 6, Issue 6, Page 460-473, December 2022., 2022
Abstract Plants have evolved diverse reproductive allocation strategies and seed traits to aid in dispersal, persistence in the seed bank, and establishment. In particular, seed size, dormancy, and early seedling vigor are thought to be key functional traits with important recruitment and fitness consequences across abiotic stress gradients.
Samsad Razzaque, Thomas E. Juenger
wiley   +1 more source

Pea aphids (Hemiptera: Aphididae) have diurnal rhythms when raised independently of a host plant [PDF]

, 2016
Seasonal timing is assumed to involve the circadian clock, an endogenous mechanism to track time and measure day length. Some debate persists, however, and aphids were among the first organisms for which circadian clock involvement was questioned ...
Bunning, Charlotte Helfrich-Förster, Garner, Jens Joschinski, Jochen Krauss, Katharina Beer   +5 more
core   +1 more source

Plant responses to photoperiod [PDF]

New Phytologist, 2008
SummaryPhotoperiod controls many developmental responses in animals, plants and even fungi. The response to photoperiod has evolved because daylength is a reliable indicator of the time of year, enabling developmental events to be scheduled to coincide with particular environmental conditions.
openaire   +4 more sources