Results 41 to 50 of about 3,028,573 (310)

Dormência em sementes de plantas daninhas como mecanismo de sobrevivência: breve revisão Weed seed dormancy as a survival mechanism: brief review

Planta Daninha, 2008
Um dos principais mecanismos de sobrevivência das plantas daninhas em ambientes constantemente perturbados é a alta produção de sementes. Essas possuem geralmente algum mecanismo de dormência, o qual contribui para a perpetuação de espécies interferentes
R. Vivian, A.A. Silva, M. Gimenes, Jr., E.B. Fagan, S.T. Ruiz, V. Labonia   +5 more
doaj   +1 more source

Adult Human Glioblastomas Harbor Radial Glia-like Cells

Stem Cell Reports, 2020
Summary: Radial glia (RG) cells are the first neural stem cells to appear during embryonic development. Adult human glioblastomas harbor a subpopulation of RG-like cells with typical RG morphology and markers.
Rong Wang, Roshan Sharma, Xiaojuan Shen, Ashley M. Laughney, Kosuke Funato, Philip J. Clark, Monika Shpokayte, Peter Morgenstern, Monalisa Navare, Yichi Xu, Shaghayegh Harbi, Ignas Masilionis, Gouri Nanjangud, Yanhong Yang, Gabriel Duran-Rehbein, Martin Hemberg, Dana Pe'er, Viviane Tabar   +17 more
doaj   +1 more source

Prediction of bacterial functional diversity in clay microcosms

Heliyon, 2021
Microorganisms in clay barriers could affect the long-term performance of waste containers in future deep geological repositories (DGR) for used nuclear fuel through production of corrosive metabolites (e.g., sulfide), which is why clay materials are ...
Alexander A. Grigoryan, Daphne R. Jalique, Simcha Stroes-Gascoyne, Gideon M. Wolfaardt, Peter G. Keech, Darren R. Korber   +5 more
doaj   +1 more source

Genome-Wide Identification of Callose Synthase Family Genes and Their Expression Analysis in Floral Bud Development and Hormonal Responses in Prunus mume

Plants, 2023
Callose is an important polysaccharide composed of beta-1,3-glucans and is widely implicated in plant development and defense responses. Callose synthesis is mainly catalyzed by a family of callose synthases, also known as glucan synthase-like (GSL ...
Man Zhang, Wenhui Cheng, Jia Wang, Tangren Cheng, Xinlian Lin, Qixiang Zhang, Cuiling Li   +6 more
doaj   +1 more source

Grazing summer cover crops mix impact on carbonnitrogen cycling, soil water, and wheat yields

Soil Security, 2023
Summer fallow practice is common in the US semiarid Southern Great Plains ecoregion. Its primary objective is to store water to enhance winter wheat production for grain and grazing.
Partson Mubvumba, Paul B. DeLaune, Frank M. Hons   +2 more
doaj   +1 more source

Mesenchymal Stem Cell–Secreted Extracellular Vesicles Instruct Stepwise Dedifferentiation of Breast Cancer Cells into Dormancy at the Bone Marrow Perivascular Region

Cancer Research, 2021
These findings describe how the initial process of dormancy and dedifferentiation of breast cancer cells at the bone marrow perivascular niche requires mesenchymal stem cell–derived exosomes, indicating a potential target for therapeutic intervention. In
Oleta A. Sandiford, R. Donnelly, Markos H El-Far, Lisa M Burgmeyer, G. Sinha, S. H. Pamarthi, L. Sherman, Alejandra I. Ferrer, Dariana E DeVore, Shyam A. Patel, Yahaira Naaldijk, S. Alonso, Pradeep Barak, M. Bryan, N. Ponzio, R. Narayanan, J. Etchegaray, Rakesh Kumar, P. Rameshwar   +18 more
semanticscholar   +1 more source

Model of tumor dormancy/recurrence after short-term chemotherapy.

PLoS ONE, 2014
Although many tumors regress in response to neoadjuvant chemotherapy, residual tumor cells are detected in most cancer patients post-treatment. These residual tumor cells are thought to remain dormant for years before resuming growth, resulting in tumor ...
Shenduo Li, Margaret Kennedy, Sturgis Payne, Kelly Kennedy, Victoria L Seewaldt, Salvatore V Pizzo, Robin E Bachelder   +6 more
doaj   +1 more source

RGS2-mediated translational control mediates cancer cell dormancy and tumor relapse.

Journal of Clinical Investigation, 2021
Slow-cycling/dormant cancer cells (SCCs) have pivotal roles in driving cancer relapse and drug resistance. A mechanistic explanation for cancer cell dormancy and therapeutic strategies targeting SCCs are necessary to improve patient prognosis, but are ...
Jaebeom Cho, H. Min, Ho Jin Lee, S. Hyun, Jeong Yeon Sim, Myungkyung Noh, S. Hwang, S. Park, Hye-Jin Boo, Hyo-Jong Lee, Sungyoul Hong, R. Park, Y. Shin, M. Hung, Ho Young Lee   +14 more
semanticscholar   +1 more source

Histone 2B-GFP Label-Retaining Prostate Luminal Cells Possess Progenitor Cell Properties and Are Intrinsically Resistant to Castration

Stem Cell Reports, 2018
Summary: The existence of slow-cycling luminal cells in the prostate has been suggested, but their identity and functional properties remain unknown.
Dingxiao Zhang, Collene Jeter, Shuai Gong, Amanda Tracz, Yue Lu, Jianjun Shen, Dean G. Tang   +6 more
doaj   +1 more source

Temperature, light and nitrate sensing coordinate Arabidopsis seed dormancy cycling, resulting in winter and summer annual phenotypes

The Plant Journal, 2013
Seeds use environmental cues to sense the seasons and their surroundings to initiate the life cycle of the plant. The dormancy cycling underlying this process is extensively described, but the molecular mechanism is largely unknown.
S. Footitt, Ziyue Huang, H. Clay, A. Mead, W. Finch‐Savage   +4 more
semanticscholar   +1 more source