Results 41 to 50 of about 3,846,370 (282)

Mistletoe Viscum coloratum maintains a stable mutualistic network in temperate forest by strategic seed provisioning to avian dispersers

Global Ecology and Conservation
Mutualistic interactions between plants and their seed dispersers are essential for maintaining global biodiversity and ecosystem functions. Mistletoe (Viscum coloratum), avian dispersers, and host trees form a distinctive ecological network, providing ...
Yabo Zhao, Wanyun Xu, Qiaoqi Sun, Kun Cheng, Cheng Zong   +4 more
doaj   +1 more source

Design and analysis strategies for robust microbiome ageing research

FEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik, İsmail Güderer, Yi Wang, Tayyaba Alvi, Prasoon Pandey, Handan Melike Dönertaş   +5 more
wiley   +1 more source

2007 United States Animal Health Report [PDF]

, 2021
Excerpt from the report Foreword: This is the fourth annual report produced by the U.S. Department of Agriculture’s (USDA) Animal and Plant Health Inspection Service (APHIS) on the status of animal health in the United States.
Animal and Plant Health Inspection Service
core   +1 more source

Motility-Independent Vertical Transmission of Bacteria in Leaf Symbiosis

mBio, 2022
Hereditary symbioses have the potential to drive transgenerational effects, yet the mechanisms responsible for transmission of heritable plant symbionts are still poorly understood.
Tessa Acar, Sandra Moreau, Olivier Coen, Frédéric De Meyer, Olivier Leroux, Marine Beaumel, Paul Wilkin, Aurélien Carlier   +7 more
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source

Quantifying the mutualism-antagonism continuum for seed removal by a granivorous disperser

Basic and Applied Ecology
Seeds removed by animals have one of two mutually exclusive fates – they are either predated or dispersed and still alive. The quality of seed dispersal by animals and the number of predated seeds will therefore determine net interaction outcomes for ...
Finn Rehling, Eelke Jongejans, Nina Farwig, Dana G. Schabo   +3 more
doaj   +1 more source

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

FEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta, Hari Baskar Balasubramanian, Amir Pasokh, Marietta Zille   +3 more
wiley   +1 more source

Nature’s Most Fruitful Threesome: The Relationship between Yeasts, Insects, and Angiosperms

Journal of Fungi, 2022
The importance of insects for angiosperm pollination is widely recognized. In fact, approximately 90% of all plant species benefit from animal-mediated pollination. However, only recently, a third part player in this story has been properly acknowledged.
Eduardo D. Fenner, Thamarys Scapini, Mariana da Costa Diniz, Anderson Giehl, Helen Treichel, Sergio Álvarez-Pérez, Sérgio L. Alves   +6 more
doaj   +1 more source

Structural and biochemical analysis of a B12 superbinder

FEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices, Jacob J. Whittaker, Dirk J. Slotboom, Albert Guskov   +3 more
wiley   +1 more source

Parasitoid load affects plant fitness in a tritrophic system [PDF]

, 2008
Plants attacked by herbivorous insects emit volatile compounds that attract predators or parasitoids of the herbivores. Plant fitness increases when these herbivorous insects are parasitized by solitary parasitoids, but whether gregarious koinobiont ...
Dicke, M., Smallegange, R.C., Blatt, S.E., Loon, J.J.A., van, Harvey, J.A.   +4 more
core   +1 more source