Results 71 to 80 of about 2,969,586 (307)

Functional Sex Reversal in Adult Gonochoristic Teleosts is Mediated by Ovarian Germline Stem Cell Plasticity and Somatic Cell Transdifferentiation

open access: yesAdvanced Science, EarlyView.
Oocytes play crucial roles in maintaining ovarian fate in adult gonochoristic fish. Targeted oocyte ablation with aromatase inhibition triggers the activation of surviving germline stem cells and the transdifferentiation of somatic cells from granoulosa/theca to Sertoli/Leydig lineages, inducing a complete and functional female‐to‐male sex reversal ...
Yang Yang   +6 more
wiley   +1 more source

Causal Mediation Mechanism of Endogenous Hormones in Seedling Growth Response of Picea abies and Picea crassifolia to Post-Sunset Supplemental Light Durations

open access: yesApplied Sciences
Post-sunset supplemental light promotes Picea seedling stem elongation, but the underlying hormonal regulation mechanisms on interspecific differences in spruce growth response to photoperiod remain unclear.
Jinping Zhang   +7 more
doaj   +1 more source

Symmetry‐Imposed Selection Rules for Excitations of Nontrivial Plasmonic Topologies

open access: yesAdvanced Science, EarlyView.
A unified group‐theory selection rule governs the excitation of vectorial nearfield topologies across three plasmonic spin states. Derived from first principles, it predicts spin–orbit vortex splitting and multidimensional nested vortices, confirmed by phase‐resolved in situ measurements.
Jie Yang   +14 more
wiley   +1 more source

The prevalence of simian malaria in wild long-tailed macaques throughout Peninsular Malaysia

open access: yesScientific Reports
The parasite Plasmodium knowlesi has been the sole cause of malaria in Malaysia from 2018 to 2022. The persistence of this zoonotic species has hampered Malaysia’s progress towards achieving the malaria-free status awarded by the World Health ...
Shahhaziq Shahari   +7 more
doaj   +1 more source

Complex ex situ - in situ approach for conservation of endangered plant species and its application to Iris atrofusca of the Northern Negev

open access: yesBioRisk, 2009
We introduce a novel approach for conservation of endangered plant species in which ex situ collections maintained in natural or semi-natural environment are a part of a complementary ex situ – in situ conservation strategy.
Sergei Volis   +2 more
doaj   +1 more source

Natural Product Toosendanin Suppresses the Malignant Development of Skin Melanoma by Targeting BNC2 for Degradation

open access: yesAdvanced Science, EarlyView.
BNC2 exhibits context‐dependent opposing functions across multiple cancer types. This study reveals BNC2 as an oncogenic driver of melanoma proliferation and metastasis through transcriptional activation of PIK3CA. The natural compound TSN simultaneously degrades BNC2 and its oncogenic partner SMAD3 via CRBN‐dependent ubiquitination.
Hui Dai   +7 more
wiley   +1 more source

Plastid genome evolution and phylogenomics with broad taxon sampling: insights into intrafamilial classification of Hamamelidaceae

open access: yesFrontiers in Plant Science
Hamamelidaceae, within the order Saxifragales, comprises 27 genera and approximately 120 species. The family has a pantropical and temperate distribution across the Americas, Asia, Africa, and Australia.
Sadaf Habib   +8 more
doaj   +1 more source

Conservation du lemur aux yeux turquoise (Eulemur flavifrons)

open access: yesRevue de Primatologie, 2014
Depuis sa redécouverte en 1985 le lémur aux yeux turquoise a bénéficié de mesures de protection croissantes dans son aire de répartition et de programmes de reproduction en parc zoologique en Amérique du nord, en Europe ainsi qu’à Madagascar.
Brice Lefaux
doaj   +1 more source

Ex situ conservation and exploitation of fungi in Italy

open access: yesPlant Biosystems - An International Journal Dealing with all Aspects of Plant Biology, 2011
Abstract The kingdom Fungi comprises one of the most diverse groups of living organisms. They are numerous, ubiquitous and undertake many roles both independently and in association with other organisms. Fungi display a wide diversity of forms also mirrored by functional diversity and play such a dominant role in human society that they are arguably ...
G. C. VARESE   +14 more
openaire   +5 more sources

Targeting the CRYAB/β‐Catenin Axis with an MMP‐9‐Responsive Hydrogel Disrupts CTC Clusters to Suppress Progression of Hepatocellular Carcinoma after Radiofrequency Ablation

open access: yesAdvanced Science, EarlyView.
The graphical abstract illustrates that sublethal thermal stress after iRFA upregulates the chaperone CRYAB in residual HCC cells, which stabilizes β‐catenin and drives a dual pathological program, including EMT and N2‐TAN polarization, thereby leading to heterotypic CTC cluster formation. The MMP‐9‐responsive hydrogel (XB@Gel) delivers XAV‐939 and BMS‐
Hui Chen   +8 more
wiley   +1 more source

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