Results 91 to 100 of about 1,024 (212)

Comparative developmental studies of the floret and embryo sac in five species of Oryzopsis (Gramineae)

open access: yes, 1973
Development of the floret and embryo sac of Oryzopsis virescens and O. hymenoides was studied. Evidence from this study and from other studies on grass floret and embryo sac development has brought the following interpretations. Histogenesis of the lemma,
Kam, Yew Kiew
core  

Isolation of Embryo Sac Cells of Lettuce(Lactuca sativa) [PDF]

open access: yes, 2010
用酶解和解剖方法分离了莴苣的卵细胞,助细胞,中央细胞和合子。莴苣子房先在酶液中酶解40~50MIn,然后在不含酶的分离液中用解剖针解剖子房。在解剖出的胚囊中,可看到卵细胞,两个助细胞和中央细胞的轮廓。将胚囊的合点端切破,轻轻挤压胚囊的珠孔端,四个细胞即可逸出。在最佳条件下,90MIn可从40个子房中分离出29个胚囊,进一步从中分离出11个卵细胞。分离出的胚囊细胞用显微操作仪收集备用。莴苣卵细胞的成功分离为进行离体受精探索创造了条件。Viable egg cells,synergids,central ...
邱义兰, 田惠桥, 陈琳, 张亚楠
core  

Secretopathies emerge as a new class of neurocristopathies

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Neural crest cells are a transient embryonic population of cells that give rise to a wide range of structures, including craniofacial cartilage and bone, peripheral neurons and glia, as well as components of the cardiac outflow tract, among others.
Amanda Teixeira   +3 more
wiley   +1 more source

Targeted senotherapy improves electrographic and behavioral outcomes in a mouse model of temporal lobe epilepsy

open access: yesEpilepsia, EarlyView.
Abstract Objective Current pharmacotherapy for temporal lobe epilepsy (TLE) is limited to symptomatic treatment and leaves approximately one third of patients with inadequate seizure control. Discovering disease‐modifying targets is an unmet clinical need. We have previously identified senescent cells (SCs) as one such target. Many drugs that eliminate
David J. McFall   +3 more
wiley   +1 more source

Development of a Zebrafish Embryo‐Based Test System for Thyroid Hormone System Disruption: 3Rs in Ecotoxicological Research

open access: yesEnvironmental Toxicology and Chemistry, EarlyView.
Abstract There is increasing concern regarding pollutants disrupting the vertebrate thyroid hormone (TH) system, which is crucial for development. Thus, identification of TH system–disrupting chemicals (THSDCs) is an important requirement in the Organisation for Economic Co‐operation and Development (OECD) testing framework.
Lisa Gölz   +9 more
wiley   +1 more source

Embryology of Nemacladus interior (Munz) Robbins

open access: yes, 1968
Nemacladus Interior has an eight-nucleate, Polygonum type of embryo sac which forms a haustorial process at its chalazal end. This process invades and crushes part of the chalazal tissues of the integument.
Walker, Howard R
core  

Residence Near Agricultural Crops at Birth and Risk of Adult Testicular Germ Cell Tumors: A French Nationwide Case–Control Study Using Historical Aerial GIS Data

open access: yesInternational Journal of Cancer, EarlyView.
As the incidence of testicular germ cell tumors (TGCTs) rises, prenatal exposure to agricultural pesticides may represent an important risk factor. Here, geographic information system‐based measures of farmland proximity at birth were used as a proxy for early‐life pesticide exposure in France, a major pesticide consumer.
Aurélie M. N. Danjou   +75 more
wiley   +1 more source

Luteal phase stimulation versus follicular phase stimulation in poor ovarian responders: A systematic review and a meta‐analysis

open access: yesInternational Journal of Gynecology &Obstetrics, EarlyView.
Abstract Background Poor ovarian response (POR) complicates a substantial proportion of in vitro fertilization (IVF) cycles, frequently causing cycle cancellation and suboptimal reproductive outcomes. Conventional follicular‐phase ovarian stimulation (FPOS) protocols often yield limited results, prompting the evaluation of alternative strategies such ...
Vittorio Agrifoglio   +8 more
wiley   +1 more source

Hypervision Proton Surgery: The Future Direction of Proton Therapy

open access: yesiNew Medicine, EarlyView.
ABSTRACT Proton beams provide unique physical advantages characterized by a low entrance dose, negligible exit dose, and a sharp Bragg peak, which enable superior sparing of normal tissues and support safe dose escalation for improved tumor control. However, conventional photon‐based fractionation remains widely used in proton therapy, where prolonged ...
Li Li, Shuanghu Yuan
wiley   +1 more source

Apomixis: genetic basis and controlling genes. [PDF]

open access: yesHortic Res, 2022
Xu Y, Jia H, Tan C, Wu X, Deng X, Xu Q.
europepmc   +1 more source

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