Results 111 to 120 of about 58,693 (334)

Fast responses, rich insights: Optimizing experimental stream studies using periphyton for comprehensive environmental assessment

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Experimental streams (ESs) are enclosures of fluvial ecosystems designed as flume microcosms to simulate flowing waters and assess environmental disturbances on aquatic communities' structure and function under controlled conditions. This study presents an ES system that combines ecological relevance with reliability in a compact design ...
Luciane Ayres Castro Reis   +1 more
wiley   +1 more source

Floral induction, floral hormones and flowering [PDF]

open access: yes
The factors, influencing the synthesis and action of floral hormones, and possible differences between floral hormones in different plants were studied.
Pol, P.A., van de
core   +1 more source

The Possible Role of Extra-ocular Photoreceptors in the Entrainment of Lobster Circadian Rhythms to Light:Dark Cycles [PDF]

open access: yes, 2013
The American lobster, Homarus americanus, is a decapod crustacean whose daily nocturnal rhythms of activity are driven, in part, by an internal biological clock. While this circadian clock is capable of producing a rhythm of approximately 24 hours on its
McKinney, Sara A
core   +1 more source

The evolution of photoperiodic response systems and seasonal GnRH plasticity in birds [PDF]

open access: yes, 2009
Animals’ lives are typically subdivided into distinct stages, some of which (e.g. breeding) contribute to fitness through enhancing current reproductive success, and some of which (e.g.
Watts, Heather E.
core   +1 more source

PGC‐1α Activation by Polyphenols: A Pathway to Thermogenesis

open access: yesMolecular Nutrition &Food Research, EarlyView.
Polyphenols, derived from dietary sources such as berries, undergo digestion and interact with gut microbiota, leading to their metabolization in the liver. This process influences bile acid composition, which in turn activates PGC1α, a key regulator of mitochondrial biogenesis and thermogenesis.
Nicholas Vannuchi, Luciana Pisani
wiley   +1 more source

The effect of photoperiod and plant growth regulators on flower bud inhibition in Coleus blumei [PDF]

open access: yes, 1968
This thesis was developed to test the possibilities of modifying the flowering habit of Coleus blumei by control of day length, night length, and the use of plant growth regulators.
Lin, Guang
core   +1 more source

Arbuscular mycorrhizal fungi increase aleurone layer zinc concentration but reduce overall zinc bioavailability in rice grain

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Rice is a critical crop for the delivery of calories and essential micronutrients to the human diet. Biofortification of rice with zinc (Zn) and iron (Fe) aims to combat the health issues associated with “hidden hunger”. Arbuscular mycorrhizal (AM) fungi have been explored for their potential to enhance Zn and Fe uptake in rice products.
Thi Diem Nguyen   +7 more
wiley   +1 more source

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