Results 61 to 70 of about 1,212,188 (330)

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Too Many Is Too Bad: Long-Term Net Negative Effects of High Density Ungulate Populations on a Dominant Mediterranean Shrub. [PDF]

PLoS ONE, 2016
Plant-animal interactions imply costs and benefits with net balance depending on interacting species and ecological context. Ungulates, in particular, confer costs (e.g., plant leaf consumption, flower bud predation) and benefits (e.g., plant ...
Xavier Lecomte, José M Fedriani, Maria C Caldeira, Adelaide S Clemente, Alessandro Olmi, Miguel N Bugalho, Miguel N Bugalho   +6 more
doaj   +1 more source

Some aspects of grazing ecosystems : a thesis presented in partial fulfilment of the requirements for the degree of Master of Agricultural Science at Massey University [PDF]

, 1970
The conversion of plant material to meat and milk by ruminants is one of the main ways in which the demand for energy and more especially protein for human consumption is met.
Scoffield, John Ernest
core  

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

How does the nectar of stomata-free nectaries cross the cuticle?

Acta Botânica Brasílica
In many glandular structures, departure from the cell is only one step in the process of exudate release to the plant surface. Here the set of events that lead nectar to the external environment is presented and discussed mainly for stomata-free ...
Elder Antônio Sousa Paiva
doaj   +1 more source

Plant species with the trait of continuous flowering do not hold core roles in a Neotropical lowland plant‐pollinating insect network

Ecology and Evolution, 2021
Plant–animal interaction science repeatedly finds that plant species differ by orders of magnitude in the number of interactions they support. The identification of plant species that play key structural roles in plant–animal networks is a global ...
Chelsea R. Hinton, Valerie E. Peters
doaj   +1 more source

Emergence of structural and dynamical properties of ecological mutualistic networks

, 2013
Mutualistic networks are formed when the interactions between two classes of species are mutually beneficial. They are important examples of cooperation shaped by evolution.
A James, A Krishna, Amos Maritan, AR Ives, AR Thompson, C Campbell, E Thébault, F Zhang, Filippo Simini, J Bascompte, J Bascompte, J Guimarães, Jayanth R. Banavar, JM Montoya, JN Holland, KS McCann, LANovakM Twardochleb, M Almeida-Neto, M Pascual, MA Nowak, MA Nowak, MW Douglas, PP Staniczenko, PR Guimarães, RM May, S Allesina, S Allesina, S Saavedra, S Saavedra, Samir Suweis, SR Proulx, T Okuyama, U Bastolla, W Ulrich   +33 more
core   +1 more source

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

FEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes, Guilherme M. Azevedo, Amanda P. Barcellos, Diana Bahia   +3 more
wiley   +1 more source

Extreme events induced by climate change alter nectar offer to pollinators in cross pollination-dependent crops

Scientific Reports
Both severe reductions and increases in rainfall can stress plants and modify floral traits involved in plant-pollinator interactions, such as nectar production.
Maria Luisa P. Frigero, Carmen S. F. Boaro, Leonardo Galetto, Priscila Tunes, Elza Guimarães   +4 more
doaj   +1 more source

Nectar Replaced by Volatile Secretion: A Potential New Role for Nectarless Flowers in a Bee-Pollinated Plant Species

Frontiers in Plant Science, 2018
The presence of nectarless flowers in nectariferous plants is a widespread phenomenon in angiosperms. However, the frequency and distribution of nectarless flowers in natural populations, and the transition from nectariferous to nectarless flowers are ...
Elza Guimarães, Priscila Tunes, Luiz D. de Almeida Junior, Luiz C. Di Stasi, Stefan Dötterl, Silvia R. Machado   +5 more
doaj   +1 more source