Results 31 to 40 of about 109,508 (308)

Effects of short photoperiod on cashmere growth, hormone concentrations and hair follicle development-related gene expression in cashmere goats

Journal of Applied Animal Research, 2023
Shanbei White Cashmere goat is a typical goat species, the growth of cashmere is affected by photoperiod. To further investigate the effects of short photoperiod treatment on cashmere growth, hormone concentrations and hair follicle development-related ...
Junda Li, Guangjie Tian, Xingtao Wang, Hongyu Tang, Yuyang Liu, Hongran Guo, Chunxin Wang, Yulin Chen, Yuxin Yang   +8 more
doaj   +1 more source

The effect of a 24-hour photoperiod on the survival, growth and swim bladder inflation of pre-flexion yellowfin tuna (Thunnus albacares) larvae

, 2011
The effects of two different continuous photoperiod regimes on survival, growth and swim bladder inflation of pre-flexion yellowfin tuna (Thunnus albacares) larvae were investigated. Each photoperiod regime was tested twice with a different larval cohort
J.D. Stieglitz, Stieglitz, J.D, Benetti, D.D, Scholey, V.P., Partridge, G.J, Hutapea, J, McIntyre, A., Scholey, V.P, Stieglitz, J.D., D.D. Benetti, A. McIntyre, McIntyre, A, G.J. Partridge, J. Hutapea, V.P. Scholey, W. Hutchinson, Hutchinson, W, Hutchinson, W., Benetti, D.D., Partridge, G.J., Chen, B, Hutapea, J., Chen, B., B. Chen   +23 more
core   +1 more source

Photoperiod decelerates the advance of spring phenology of six deciduous tree species under climate warming

, 2021
Vegetation phenology in spring has substantially advanced under climate warming, consequently shifting the seasonality of ecosystem process and altering biosphere–atmosphere feedbacks.
Hans J. De Boeck, Fu, Yongshuo H.., Lianhong Gu, Gu, Lianhong, Peñuelas, Josep, Ghasserm R. Asrar, Andrew D. Richardson, Josep Peñuelas, Yeqiao Wang, Asrar, Ghasserm R., Yongshuo Fu, de Boeck, Hans, De Boeck, Hans J., Yongguang Zhang, Richardson, Andrew D., Jiafu Mao, Wang, Zhuosen, Lin Meng, Yuyu Zhou, Zhang, Yongguang, Meng, Lin, Wang, Yeqiao, De Boeck, Hans G., Zhuosen Wang, Fu, Yongshuo, Mao, Jiafu, Zhou, Yuyu, Wang, Zhousen   +27 more
core   +1 more source

Effects of Continuous Light (LD24:0) Modulate the Expression of Lysozyme, Mucin and Peripheral Blood Cells in Rainbow Trout

Fishes, 2022
Continuous photoperiod is extensively used in fish farming, to regulate the reproductive cycle, despite evidence suggesting that artificial photoperiods can act as a stressor and impair the immune system.
Ariel Valenzuela, Ignacia Rodríguez, Berta Schulz, Raúl Cortés, Jannel Acosta, Víctor Campos, Sebastián Escobar-Aguirre   +6 more
doaj   +1 more source

A functional nexus between photoperiod acclimation, torpor expression and somatic fatty acid composition in a heterothermic mammal. [PDF]

PLoS ONE, 2013
The seasonal changes in thermal physiology and torpor expression of many heterothermic mammals are controlled by photoperiod. As function at low body temperatures during torpor requires changes of tissue lipid composition, we tested for the first time ...
Fritz Geiser, Martin Klingenspor, Bronwyn M McAllan   +2 more
doaj   +1 more source

Photoperiodism and Diapause in Insects [PDF]

Nature, 1949
DURING the past five years, work has been in progress at Rothamsted on rearing in the laboratory a number of plant-feeding insects. One of the aims has been to maintain supplies of insects in large numbers throughout the year. This has necessitated a study of the factors affecting diapause, the quiescent phase in which most plant-feeding insect species
Way, M. J., Hopkins, B., Smith, P. M.
openaire   +2 more sources

Identification of Melatonin-Regulated Genes in the Ovine Pituitary Pars Tuberalis, a Target Site for Seasonal Hormone Control [PDF]

, 2008
The pars tuberalis (PT) of the pituitary gland expresses a high density of melatonin (MEL) receptors and is believed to regulate seasonal physiology by decoding changes in nocturnal melatonin secretion.
Davis, Julian R. E., Talbot, Richard, Dupre, Sandrine M., Loudon, Andrew S I; id_orcid, Waddington, D., Downing, A., Burt, D.W., Davis, Julian R E, Loudon, A.S.I., Talbot, R., Mouzaki, D., Davis, J.R.E., Downing, Alison, Lincoln, Gerald A., Mouzaki, Daphne, Dupré, S.M., Burt, Dave W., Lincoln, G.A., Waddington, David, Loudon, Andrew S. I., Dupre, Sandrine, Malpaux, Benoit   +21 more
core   +1 more source

Dawn and photoperiod sensing by phytochrome A [PDF]

, 2018
In plants, light receptors play a pivotal role in photoperiod sensing, enabling them to track seasonal progression. Photoperiod sensing arises from an interaction between the plant's endogenous circadian oscillator and external light cues.
Imaizumi, T., Toledo-Ortiz, G., Ganpudi, A., Ganpudi, Ashwin Laxminaranyan, Kubota, A., Halliday, K.J., Seaton, D.D.   +6 more
core   +1 more source

Acclimation of circadian rhythms in woodland strawberries (Fragaria vesca L.) to Arctic and mid-latitude photoperiods

BMC Plant Biology, 2023
Background Though many abiotic factors are constantly changing, the photoperiod is a predictable factor that enables plants to time many physiological responses.
Corine Faehn, Michael Reichelt, Axel Mithöfer, Timo Hytönen, Jørgen Mølmann, Laura Jaakola   +5 more
doaj   +1 more source

Plants Distinguish Different Photoperiods to Independently Regulate Post-Flowering Vegetative Growth and Reproductive Growth

Plants
The post-flowering stage is critical for plant yield and seed quality. This can be influenced by the photoperiod; however, the underlying mechanisms are not clear.
Weizhi Chen, Ziyi Wang, Lamei Jiang, Amanula Yimingniyazi, Cai Ren   +4 more
doaj   +1 more source