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911.
Griebel Anne Metzen Daniel Pendall Elise Nolan Rachael H. Clarke Hamish Renchon Alexandre A. Boer Matthias M. 《Ecosystems》2022,25(1):1-16
Ecosystems - Mistletoes are emerging as important co-contributors to tree mortality across terrestrial ecosystems, particularly when infected trees are stressed by water limitations during drought.... 相似文献
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Singh Anamika Duche Rachael Terumbur Wandhare Arundhati Ganesh Sian Jaspreet Kaur Singh Brij Pal Sihag Manvesh Kumar Singh Kumar Siddharth Sangwan Vikas Talan Shreya Panwar Harsh 《Probiotics and antimicrobial proteins》2023,15(1):44-62
Probiotics and Antimicrobial Proteins - The growing consumer awareness towards healthy and safe food has reformed food processing strategies. Nowadays, food processors are aiming at natural,... 相似文献
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John Gould James Taylor Bryce Davies Rachael Donelly Kate Schmahl Cassandra K. Bugir Chad T. Beranek Jess McGregor Stephen V. Mahony Rebecca Seeto Rose Upton Colin McHenry Alex Callen 《Austral ecology》2023,48(3):585-599
Traditional methods for identifying individual amphibians in capture–mark–recapture (CMR) studies have been primarily confined to post-metamorphic stages, using artificial markers that come with a variety of limitations. An alternative that may open CMR studies to earlier life stages involves the use of a species' natural external markers in photo-based identification. In this study, we investigated whether it was possible to distinguish tadpoles of the threatened green and golden bell frog (Litoria aurea) at the individual level based on tail venation patterns. We collected photographs of the tails of captive-raised tadpoles using a smartphone over a 4-week period. This photo-library was used to create an electronic survey where participants were asked to detect matches for query tadpoles from small image pools. We found that most participants agreed on a match for each query, with perfect consensus achieved for most queries (83%). We detected a 14% decline in perfect consensus when participants were asked to match images of tadpoles separated by longer time intervals, suggesting that it is more difficult to visually identify recapture events of L. aurea tadpoles over extended periods due to changes to tail appearance. However, consensus was obtained by participants for all queries, with all matches verified as being correct by the primary researcher. The strength of agreement among participants with no prior experience in matching tadpole tails suggests that there is sufficient inter-individual variation in this feature for individuals to be manually identified. We thus propose that photo-identification is likely to be a valid, non-invasive technique that can be used for short-term studies on tadpole populations that display tail venation. This offers an alternative to artificial markers that may not allow for individual identification, while also opening up tadpole monitoring programmes to citizen scientists who can be recruited online to process image data from home. 相似文献
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Bragg J Rajkovic A Anderson C Curtis R Van Houten J Begres B Naples C Snider M Fraga D Singer M 《Journal of bacteriology》2012,194(10):2668-2676
Arginine kinases catalyze the reversible transfer of a high-energy phosphoryl group from ATP to l-arginine to form phosphoarginine, which is used as an energy buffer in insects, crustaceans, and some unicellular organisms. It plays an analogous role to that of phosphocreatine in vertebrates. Recently, putative arginine kinases were identified in several bacterial species, including the social Gram-negative soil bacterium Myxococcus xanthus. It is still unclear what role these proteins play in bacteria and whether they have evolved to acquire novel functions in the species in which they are found. In this study, we biochemically purified and characterized a putative M. xanthus arginine kinase, Ark, and demonstrated that it has retained the ability to catalyze the phosphorylation of arginine by using ATP. We also constructed a null mutation in the ark gene and demonstrated its role in both certain stress responses and development. 相似文献
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