نتایج جستجو برای: dormancy

تعداد نتایج: 5340  

Journal: :Cancer research 2013
Rebecca Marlow Gabriella Honeth Sara Lombardi Massimiliano Cariati Sonya Hessey Aikaterini Pipili Veronica Mariotti Bharath Buchupalli Katie Foster Dominique Bonnet Agamemnon Grigoriadis Pranela Rameshwar Anand Purushotham Andrew Tutt Gabriela Dontu

Mortality of patients with breast cancer is due overwhelmingly to metastatic spread of the disease. Although dissemination is an early event in breast cancer, extended periods of cancer cell dormancy can result in long latency of metastasis development. Deciphering the mechanisms underlying cancer cell dormancy and subsequent growth at the metastatic site would facilitate development of strateg...

Journal: :Plant physiology and biochemistry : PPB 2011
Thirugnanasambantham Krishnaraj Prabu Gajjeraman Senthilkumar Palanisamy Suresh Ramraj Subhas Chandrabose Abul Kalam Azad Mandal

Growth regulation associated with dormancy is an essential element in plant's life cycle that leads to changes in expression of large number of genes. Forward and reverse suppression subtractive hybridization (SSH) libraries were developed to identify and characterize the genes associated with bud (banjhi) dormancy in tea (Camellia sinensis (L.) O. Kuntze). Efficiency of subtraction was confirm...

2013
D. TRUPIANO M. ROCCO G. RENZONE A. SCALONI A. MONTAGNOLI M. TERZAGHI A. DI IORIO D. CHIATANTE G. S. SCIPPA

Woody plants living in temperate climates finely regulate their growth and development in relation to seasonal changes; their transition from vegetative to dormancy phase represents an adaptation to their environment. Events occurring in the shoot during onset/release from dormancy have been largely investigated, whereas in woody roots they remain completely unknown. In recent years, we have be...

Journal: :Plant physiology 1973
R B Taylorson S B Hendricks

Promotion of germination by red light fails after prolonged dark imbibition of Rumex crispus L. seeds, indicative of a secondary dormancy. The degree and rate of inception of the dormancy increases with increasing temperature. Following establishment of the dormancy, germination response to red light can be restored by either prolonged cold treatment or brief high temperature shifts. Loss of ph...

Journal: :Journal of evolutionary biology 2013
C B Wadsworth W A Woods D A Hahn E B Dopman

Evolutionary change in the timing of dormancy enables animals and plants to adapt to changing seasonal environments and can result in ecological speciation. Despite its clear biological importance, the mechanisms underlying the evolution of dormancy timing in animals remain poorly understood because of a lack of anatomical landmarks to discern which phase of dormancy an individual is experienci...

Seed coat color as a perfect and simple index is effective in water absorption, seed dormancy and germination. The mustard plant produces seeds with different coat color. So, in order to investigate the effect of seed coat color on germination rate, the percentage of germination and dormancy of Mustard (Sinapis arvensis L.) seeds an experiment was carried out based on a completely randomized de...

Journal: :Frontiers in Ecology and Evolution 2021

Dormancy is an inactive period of organism’s life cycle that permits it to survive through phases unfavorable conditions in highly variable environments. not binary. There a continuum dormancy phenotypes represent some degree reduced metabolic activity (hypometabolism), feeding, and reproduction or proliferation. Similarly, normal cells cancer exhibit range states from quiescence long-term perm...

2014
Vijaya R. Chitnis Feng Gao Zhen Yao Mark C. Jordan Seokhoon Park Belay T. Ayele

Maintenance and release of seed dormancy is regulated by plant hormones; their levels and seed sensitivity being the critical factors. This study reports transcriptional regulation of brassinosteroids (BR), ethylene (ET), cytokinin (CK) and salicylic acid (SA) related wheat genes by after-ripening, a period of dry storage that decays dormancy. Changes in the expression of hormonal genes due to ...

Journal: :Journal of evolutionary biology 2014
M F Scott S P Otto

Many species delay development unless particular environments or rare disturbance events occur. How can such a strategy be favoured over continued development? Typically, it is assumed that continued development (e.g. germination) is not advantageous in environments that have low juvenile/seedling survival (mechanism 1), either due to abiotic or competitive effects. However, it has not previous...

2015
Yujie He Jinyan Yang Qianlai Zhuang Jennifer W. Harden Anthony D. McGuire Yaling Liu Lianhong Gu

Soil carbon dynamics of terrestrial ecosystems play a significant role in the global carbon cycle. Microbial-based decomposition models have seen much growth recently for quantifying this role, yet dormancy as a common strategy used by microorganisms has not usually been represented and tested in these models against field observations. Here we developed an explicit microbial-enzyme decompositi...

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