Results 31 to 40 of about 3,846,331 (256)

Ant-plant interaction in a tropical savanna: may the network structure vary over time and influence on the outcomes of associations? [PDF]

open access: yesPLoS ONE, 2014
Plant-animal interactions occur in a community context of dynamic and complex ecological interactive networks. The understanding of who interacts with whom is a basic information, but the outcomes of interactions among associates are fundamental to draw ...
Denise Lange, Kleber Del-Claro
doaj   +1 more source

An experimental and modelling exploration of the host-sanction hypothesis in legume-rhizobia mutualism [PDF]

open access: yes, 2008
Despite the importance of mutualism as a key ecological process, its persistence in nature is difficult to explain since the existence of exploitative, 'cheating' partners that could erode the interaction is common. By analogy with the proposed
Jose Ruiz-Sainz   +7 more
core  

An ant-plant mutualism induces shifts in the protist community structure of a tank-bromeliad [PDF]

open access: yes, 2012
Although ants may induce community-wide effects via changes in physical habitats in terrestrial environments, their influence on aquatic communities living in plant-held waters remains largely underexplored.
Pelozuelo, Laurent   +7 more
core   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

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

open access: yesGlobal 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   +4 more
doaj   +1 more source

Motility-Independent Vertical Transmission of Bacteria in Leaf Symbiosis

open access: yesmBio, 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   +7 more
doaj   +1 more source

2007 United States Animal Health Report [PDF]

open access: yes, 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

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS 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   +5 more
wiley   +1 more source

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS 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   +2 more
wiley   +1 more source

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

open access: yesBasic 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   +3 more
doaj   +1 more source

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