Heterotrophic Bacteria Production and Microbial Community Assessment

Benbow, M. Eric; Pechal, Jennifer L.; Ward, Amelia K.

doi:10.1016/b978-0-12-416558-8.00009-3

Cited by 16 publications

(2 citation statements)

References 62 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…All specimens were immediately preserved in 95% molecular grade ethanol within sealed glass vials for laboratory identification under a stereomicroscope using regional dichotomous keys (Belfiore 1983;Fochetti & Tiernod e Figueroa 2008;Moretti 1983;Rivosecchi 1984) and then weighed. This preservation approach was based on our previous success with describing the microbiomes of aquatic and terrestrial macroinvertebrates (Benbow et al, 2017;Pechal & Benbow 2016;Pechal et al, 2019;Receveur et al, 2018;Weatherbee et al, 2017). At the time of sampling, physical and chemical parameters were measured using multiparametric probes (physio-chemical properties [Quanta, Hydrolab]…”

Section: Sample Collectionsmentioning

confidence: 99%

Insect-associated bacterial communities in an alpine stream

2019

Self Cite

View full text Add to dashboard Cite

The roles of macroinvertebrate and microbial communities in stream ecosystems are recognized to be important to energy flow and nutrient cycling. While the linkages of these major groups of aquatic organisms has not been thoroughly investigated, determining how they interact is particularly important for understanding the mechanisms and potential evolutionary relationships that contribute to ecosystem processes, such as organic matter decomposition. We evaluated the microbiomes of several aquatic macroinvertebrate species differing in trophic ecology and belonging to different functional feeding groups at two sites along an Italian Alpine river with different elevation and environmental characteristics, one located above the tree-line and the other in a forested environment. We found that the internal microbial communities of the different insect species significantly varied in taxonomic and functional composition and could be used to classify samples to both species and environment. We demonstrated that functional differences existed between the microbiota of different macroinvertebrate species with variable feeding behaviors, and that species differences were more important, in this context, than environmental or habitat conditions. These results provide new information on how the microbiomes of macroinvertebrates may potentially be influenced by their hosts and habitat conditions in Alpine streams.

show abstract

Section: Sample Collectionsmentioning

confidence: 99%

Insect-associated bacterial communities in an alpine stream

2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…Snails fed on plant biomass, their guts which depends predominantly on the metabolic activities of the gastro-intestinal microflora this evolved for years to digest lignocellulosic biomass with extraordinary efficiency [24,4]. Microbial communities in stream ecosystems are the trophic foundations for food webs and energy flow, occupying nearly all functional groups that turn over nutrients from municipal organic waste and playing a central role in recycling the detrital pool into energy for the animal metabolic processes [25]. Nevertheless, the most important groups of the heterotrophic microbial communities, a suit of microscopic prokaryotes and eukaryotes that decompose organic matter are consumed by organisms of higher trophic levels.…”

Section: Introductionmentioning

confidence: 99%

Physiology and Rumen Microbial Ecology of Goats Fed Municipal Organic Solid Wastes Treated with Diastic Microbes from Snail (Achatina achatina)

Agida

Nsa

John

et al. 2021

ARRB

View full text Add to dashboard Cite

The experiment was conducted with the objective of providing more information on the physiology and rumen microbial ecology of goats fed municipal organic solid waste treated with Diastic microbes of snails (Achatina achatina). The study was on the treated and untreated municipal organic solid waste as components of experimental diet. Balanced rations containing diets; A = 45% untreated municipal organic waste (UMOW), B = 45% treated municipal organic waste (TMOW), and C = 70% treated municipal organic waste (TMOW), with wheat offal, palm kernel cake, and molasses used to balance the diets. Where grass/legume ratio of 3 parts of Panicum maximum and 1 part of Centrocema were fed across treatments at the same proportion. The three rations were fed to 18 unsex Red Sokoto goats aged between 6 to 7 months, with an average weight of 8.01±2.50kg. They were housed in pens, on a floor space of 0.5 to 0.75m2 in a completely randomized designed experiment replicated six times and fed for a period of 52 days. The results were separated according to the parameters of rumen physiology (pH, total volatile fatty acids, acetic, propionic, butyric acids and ethanol, and rumen ecology (bacteria, protozoa, and fungi, which are mainly anaerobic microbes). The investigations revealed that microbial (bacteria, protozoa and fungi) load counts were significantly (p<0.05) influenced by dietary treatments. While the total volatile fatty acids (TVFA), acetic, butyric and propionic increased (p<0.05) except for the TVFA and the propionic acid that showed numerical (p>0.05) increased levels of (TMOW). The pH levels improved (p>0.05) between 6.7 to 6.8 where the rumen electrolytes (Ca, Na and K) increased (p<0.01) with increased levels of TMOW. Rumen moisture, dry matter and fat content were (p<0.01) influenced by TMOW diets while ash content was (p<0.01) influenced by the TMOW. Crude protein, ether extract, crude fibre and carbohydrate were not affected (p<0.01; p<0.05) affected. It is good to note that, the microbial community of snail used in the pre-feeding fermentation of municipal organic waste had influence in the physiology and rumen microbial ecology at interface with the goat, enhanced improved the organic matter degradation and feed quality, of the highly fibrous municipal organic solid waste.

show abstract

Disentangling Ecosystem Necromass Dynamics for Biodiversity Conservation

Barton,

Schultz,

Butterworth

et al. 2024

Ecosystems

View full text Add to dashboard Cite

Global environmental change has redistributed earth’s biomass and the inputs and dynamics of basal detrital resources in ecosystems, contributing to the decline of biodiversity. Yet efforts to manage detrital necromass for biodiversity conservation are often overlooked or consider only singular resource types for focal species groups. We argue there is a significant opportunity to broaden our perspective of the spatiotemporal complexity among multiple necromass types for innovative biodiversity conservation. Here, we introduce an ecosystem-scale perspective to disentangling the spatial and temporal characteristics of multiple and distinct forms of necromass and their associated biota. We show that terrestrial and aquatic ecosystems contain a diversity of necromass types, each with contrasting temporal frequencies and magnitudes, and spatial density and configurations. By conceptualising an ecosystem in this way, we demonstrate that specific necromass dynamics can be identified and targeted for management that benefits the unique spatiotemporal requirements of dependent decomposer organisms and their critical role in ecosystem biomass conversion and nutrient recycling. We encourage conservation practitioners to think about necromass quantity, timing of inputs, spatial dynamics, and to engage with researchers to deepen our knowledge of how necromass might be manipulated to exploit the distinct attributes of different necromass types to help meet biodiversity conservation goals.

show abstract

Heterotrophic Bacteria Production and Microbial Community Assessment

Cited by 16 publications

References 62 publications

Insect-associated bacterial communities in an alpine stream

Insect-associated bacterial communities in an alpine stream

Physiology and Rumen Microbial Ecology of Goats Fed Municipal Organic Solid Wastes Treated with Diastic Microbes from Snail (Achatina achatina)

Disentangling Ecosystem Necromass Dynamics for Biodiversity Conservation

Contact Info

Product

Resources

About