Results 81 to 90 of about 118,511 (249)

Speciation with gene flow

PLANTS, PEOPLE, PLANET, EarlyView.
Biodiversity is threatened by human activities, with extinction debt accumulating rapidly. Many of these activities change the connectivity of populations, fragmenting existing population systems or bringing previously isolated populations or species into contact.
Zhiqin Long, Xu Zhang, Yue Yu, Gregory L. Owens, Diana J. Rennison, Clarisse Palma‐Silva, Daniel Ortiz‐Barrientos, Loren H. Rieseberg   +7 more
wiley   +1 more source

Botanic and heritage gardens as living laboratories in the age of the polycrisis

PLANTS, PEOPLE, PLANET, EarlyView.
Societal Impact Statement Cities face intertwined crises of climate, biodiversity loss and social disconnection. We show how botanic and heritage gardens can help address these challenges as living laboratories to generate place‐based evidence and public engagement.
Kevin Frediani
wiley   +1 more source

Gene turnover in the common ancestor of all C4 grasses

PLANTS, PEOPLE, PLANET, EarlyView.
Understanding how plants evolve more efficient photosynthesis is important in a warming world where improving crop productivity and resilience is a global priority. By generating the first reference genomes for an early‐diverging group of grasses called the Aristidoideae, we were able to reconstruct the genetic makeup of the last common ancestor of all
Lara Pereira, Ahmed S. Alenazi, Sahr Mian, Ilia J. Leitch, Pascal‐Antoine Christin, Colin P. Osborne, Luke T. Dunning   +6 more
wiley   +1 more source

Ashwagandha: Is It Safe? Part 2: A Preclinical Evidence Review

Phytotherapy Research, EarlyView.
ABSTRACT The preclinical evidence for the safety of ashwagandha (Withania somnifera (L.) Dunal, AS) is reviewed, and its preparations (extracts) and constituents, from the general toxicity in animal models to in vitro and cell culture studies, which may elucidate mechanisms of action and explain clinical case reports.
Elizabeth M. Williamson, Thomas Brendler
wiley   +1 more source

Ashwagandha: Is It Safe? Part 1: A Regulatory Review

Phytotherapy Research, EarlyView.
ABSTRACT Over the last decade, ashwagandha (Withania somnifera (L.) Dunal, AS) has been brought under increasing scrutiny by EU regulators regarding its safety for the use in food supplements, culminating in a recent recommendation for an Article 8 procedure according to Regulation (EC) No. 1925/2006 in the European Union (EU).
T. Brendler, R. Al‐Mondhiry, L. Lang, R. Marles, M. Tallon, A. Raghu   +5 more
wiley   +1 more source

Evaluation of Potential Hormonal Activities of Ashwagandha (Withania somnifera)

Phytotherapy Research, EarlyView.
ABSTRACT Ashwagandha is a widely used herb in traditional medicine systems, particularly Ayurveda. Despite its extensive tradition, growing concerns regarding its potential endocrinological effects have prompted scientific scrutiny. This review systematically evaluates the current preclinical, clinical, and case study evidence concerning AS's effects ...
Günter Vollmer, Thomas Brendler
wiley   +1 more source

Localization of an experimental ecological unit in the Maradi region of Nigeria [PDF]

A detailed topographical and geomorphological description of a specific ecological unit in the Maradi region of the Sahel in the Niger Republic is presented. Sandy structures are classified into active dunes and covered dunes and an extensives vocabulary
Canon, L., Chapelle, A. M., Mainguet, M.
core   +1 more source

Safety Evaluation of an Aqueous Root and Leaf Extract of Ashwagandha (Withania somnifera)

Phytotherapy Research, EarlyView.
Sensoril, an aqueous root and leaf extract of ashwagandha showed no evidence of mutagenicity in the in vitro Ames assay, was negative in the in vitro micronucleus, in vivo mammalian bone marrow chromosome aberration assays, and was well tolerated in the rat at up to 4000 mg/kg BW/day when administered orally for a period of 90 days. The data from these
Mukesh Summan, Candace L. Doepker, Gregory P. Brorby   +2 more
wiley   +1 more source

Safety of 8‐Week Administration With Ashwagandha (Withania somnifera) Root Extract in Adults With Stress and Anxiety: Findings From a Prospective, Randomized, Multi‐Center, Double‐Blinded, Placebo‐Controlled Study

Phytotherapy Research, EarlyView.
ABSTRACT Ashwagandha (Withania somnifera) has been recognized for enhancing physical strength, mental well‐being, and overall vitality. Despite its long‐standing use across generations, some clinical reports have noted occasional adverse events. This study compared the safety and tolerability of Ashwagandha Root Extract (ARE) in healthy adults.
Ketan Pakhale, Jaising Salve, John Ademola, Jose Parraca, Deepak Langade   +4 more
wiley   +1 more source

Vegetated dunes and barchan dune fields

, 2007
Desertifikation steht in enger Beziehung zu aeolischem Sedimenttransport, einschliesslich der Bildung, Evolution und Bewegung von Sanddünen. Sandduenen bewegen sich in riesigen Clustern von tausenden von Dünen unter einer komplexen internen Dynamik, welche ihre Größe und räumliche Verteilung bestimmt.
openaire   +2 more sources