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المزيد من المرشحاتالمزيد من المرشحاتنوع المحتوىنوع العنصرلديه النص الكاملالموضوعبلد النشرالناشرالمصدرالجمهور المستهدفالمُهدياللغةمكان النشرالمؤلفينالموقع
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نتائج ل
"Microorganisms"
صنف حسب:
Tiny creatures : the world of microbes
بواسطة
Davies, Nicola, 1958- author
,
Sutton, Emily, illustrator
في
Microorganisms Juvenile literature.
,
Microorganisms.
2014
Explores all the different microbes that inhabit the Earth and examines the varied jobs they do.
The marine nitrogen cycle: new developments and global change
بواسطة
Hutchins, David A
,
Capone, Douglas G
في
Abyssal zone
,
Acidification
,
Aerobic microorganisms
2022
The ocean is home to a diverse and metabolically versatile microbial community that performs the complex biochemical transformations that drive the nitrogen cycle, including nitrogen fixation, assimilation, nitrification and nitrogen loss processes. In this Review, we discuss the wealth of new ocean nitrogen cycle research in disciplines from metaproteomics to global biogeochemical modelling and in environments from productive estuaries to the abyssal deep sea. Influential recent discoveries include new microbial functional groups, novel metabolic pathways, original conceptual perspectives and ground-breaking analytical capabilities. These emerging research directions are already contributing to urgent efforts to address the primary challenge facing marine microbiologists today: the unprecedented onslaught of anthropogenic environmental change on marine ecosystems. Ocean warming, acidification, nutrient enrichment and seawater stratification have major effects on the microbial nitrogen cycle, but widespread ocean deoxygenation is perhaps the most consequential for the microorganisms involved in both aerobic and anaerobic nitrogen transformation pathways. In turn, these changes feed back to the global cycles of greenhouse gases such as carbon dioxide and nitrous oxide. At a time when our species casts a lengthening shadow across all marine ecosystems, timely new advances offer us unique opportunities to understand and better predict human impacts on nitrogen biogeochemistry in the changing ocean of the Anthropocene.
Journal Article
Plants and microorganisms
بواسطة
Eason, Sarah
في
Microorganisms Juvenile literature.
,
Plants Juvenile literature.
,
Microorganisms.
2010
This volumes introduces concepts and principles about plants and microorganisms.
The Biodiversity of Epilithic Microalgal Communities Colonising a Central Mediterranean Coastline
2022
Schembri, S. and Zammit, G., 2022. The biodiversity of epilithic microalgal communities colonising a central Mediterranean coastline. Journal of Coastal Research, 38(2), 249–260. Coconut Creek (Florida), ISSN 0749-0208. Microbial communities colonise the coastal ecosystem around the Maltese islands. However, such communities are understudied, both in Malta and in the central Mediterranean. This research aims to increase current knowledge about the biodiversity of phototrophic communities growing along a central Mediterranean rocky shoreline and is the first such study to be performed on microorganisms growing in epilithic biofilms and microbial mats along the coastline in the Maltese islands. Samples were obtained using techniques that were noninvasive to the underlying substratum. These were studied by direct observation using light and electron microscopy, by culturing in vitro, by molecular analysis via sequencing of the small subunit ribosomal ribonucleic acid genes and phylogenetic analyses. Microscopic analyses revealed highly diverse communities made of both photosynthetic and heterotrophic organisms. The predominant microorganisms were simple filamentous cyanobacteria including species of Leptolyngbya, Phormidesmis, Nodosilinea, Toxifilum, Phormidium, and Lyngbya, as well as heterocytous Calothrix and Nunduva spp. The coccal cyanobacteria included species of Aphanocapsa and Chroococcus, whereas coccal microalgae belonged to Chlorella, Chlamydomonas, and Coelastrella spp., accompanied by diatoms of Navicula sp. These results include first records of cyanobacterial and microalgal barcodes that were genetically sequenced from a coastline in the central Mediterranean. Germlings of the filamentous macroalga Cladophora were embedded in the rocky substrate that was preconditioned by biofilm growth and ciliated protozoans, micronematodes, and microcrustaceans interacted with the microbial communities. The isolation of new cyanobacterial and microalgal strains from these phototrophic communities highlights the importance of employing a combined multiphasic approach to supplement current knowledge about the biodiversity of microbial communities colonising rocky shores.
Journal Article
Do not lick this book
بواسطة
Ben-Barak, Idan, author
,
Frost, Julian, artist
,
Rundgren, Linnea, photographer
في
Bacteria Juvenile literature.
,
Microorganisms Juvenile literature.
,
Bacteria.
2018
Min is a microbe. She is small. Very small. In fact, so small that you'd need to look through a microscope to see her. Or you can simply open this book and take Min on an adventure to amazing places she's never seen before-- like the icy glaciers of your tooth or the twisted, tangled jungle of your shirt.