Corn stover induces extracellular laccase activity in Didymosphaeria sp. (syn. = Paraconiothyrium sp.) and exhibits increased in vitro ruminal digestibility when treated with this fungal species

Arredondo-Santoyo, Marina; Herrera-Camacho, José; Vázquez-Garcidueñas, Ma. Soledad; Vázquez-Marrufo, Gerardo

doi:10.1007/s12223-020-00795-4

Cited by 8 publications

(6 citation statements)

References 63 publications

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“…The SEM images of CS treated with the fungus didymosphaeria sp. cmu-196 were presented in the study by Arredondo Santoyo et al, but the difference is that the structural modification of vascular tissue was exhibited [8]. The above results illustrated that the screened Enterobacter hormaechei KA3 had significant lignin-degradation ability.…”

Section: Intuitive Analysis Of Strain Ka3 With Cs Treatmentmentioning

confidence: 76%

“…Most of them have been identified in different habitats, such as soil, rotten wood, activated sludge, wastewater treatment plants, compost, and animal guts. Fungi, such as Phanerochaete Chrysosporium, Energies 2021, 14, 2990 of 13 Hypholoma fasciculare, and Didymosphaeria sp., show higher efficiency [8,9], but they are sensitive to environmental conditions. Bacteria have good tolerance to environmental changes, so they have good potential for industrial application of lignin degradation.…”

Section: Introductionmentioning

confidence: 99%

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Enhanced Biogas Production by Ligninolytic Strain Enterobacter hormaechei KA3 for Anaerobic Digestion of Corn Straw

Zhang

Zhao

et al. 2021

Energies

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Lignin-feeding insect gut is a natural ligninolytic microbial bank for the sustainable conversion of crop straw to biogas. However, limited studies have been done on highly efficient microbes. Here, an efficient ligninolytic strain Enterobacter hormaechei KA3 was isolated from the gut microbiomes of lignin-feeding Hypomeces squamosus Fabricius, and its effects on lignin degradation and anaerobic digestion were investigated. No research has been reported. Results showed that strain KA3 had better lignin-degrading ability for corn straw with a higher lignin-degrading rate (32.05%) and lignin peroxidase activity (585.2 U/L). Furthermore, the highest cumulative biogas yield (59.19 L/kg-VS) and methane yield (14.76 L/kg-VS) were obtained for KA3 inoculation, which increased by 20% and 31%, respectively, compared to CK. Higher removal rates of COD, TS, and vs. of 41.6%, 43.11%, and 66.59% were also found. Moreover, microbial community diversity increased as digestion time prolonged in TG, and bacteria were more diverse than archaea. The dominant genus taxon, for methanogens, was Methanosate in TG, while in CK was Methanosarcina. For bacteria, dominant taxa were similar for all groups, which were Solibacillus and Clostridium. Therefore, strain KA3 improved the methane conversion of the substrate. This study could provide a new microbial resource and practical application base for lignin degradation.

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Section: Intuitive Analysis Of Strain Ka3 With Cs Treatmentmentioning

confidence: 76%

Section: Introductionmentioning

confidence: 99%

Enhanced Biogas Production by Ligninolytic Strain Enterobacter hormaechei KA3 for Anaerobic Digestion of Corn Straw

Zhang

Zhao

et al. 2021

Energies

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“…In this sense, some authors report SSF as a promising alternative in the use of these agro-industrial by-products as a culture medium in order to account for these problems, making its use feasible in animal feed [40]. It has been also shown that SSF is one of the most suitable and economic techniques for detoxifying or enhancing protein enrichment, as well as for an efficient digestion and utilization of lignocellulosic agricultural fibrous feeds and fodder residues [14,18]. Therefore, this can enhance their feed values and bring benefits both to the economy and the environment, promoting the circular economy.…”

Section: Discussionmentioning

confidence: 99%

“…In addition, SSF is described as a simple treatment for digestibility improvement [14,15]. It has been successfully applied for ruminal digestibility improvement in fiber rich by-products, like corn stovers [16][17][18], wheat straw [19], camelia seed [20] and corn straw [21], among others. During the fermentation of these substrates, fungi improve fermented products' digestibility due to their ability to release several enzymes (amylases, xylases, celullases), which degrade plant cell walls [22,23], allowing the rumen microorganisms to access the polysaccharides [18].…”

Section: Introductionmentioning

confidence: 99%

Solid State Fermentation as a Tool to Stabilize and Improve Nutritive Value of Fruit and Vegetable Discards: Effect on Nutritional Composition, In Vitro Ruminal Fermentation and Organic Matter Digestibility

Ibarruri

Goiri

Cebrián

et al. 2021

Animals

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This research aimed to evaluate in vitro organic matter digestibility, fermentation characteristics and methane production of fruit and vegetable discards processed by solid state fermentation (SSF) by Rhizopus sp. Mixtures were composed of approximately 28% citric fruits, 35% other fruits and 37% vegetables. Fruit and vegetables were processed and fermented to obtain a stabilized product. Nutritional characterization and in vitro ruminal fermentation tests were performed to determine the effect of fungal bioconversion on digestibility, end products and gas production kinetics. Results indicate that SSF reduced organic matter and reducing sugars, while it increased crude protein and neutral detergent fiber, acid detergent fiber and neutral detergent insoluble protein. The in vitro gas production showed that SSF led to a reduction of the organic matter digestibility (p < 0.001), short chain fatty acids (SCFA; p = 0.003) and CH4 (p = 0.002). SSF reduced the gas production from the insoluble fraction (p = 0.001), without modifying the production rate (p = 0.676) or the lag time (p = 0.574). Regarding SCFA profile, SSF increased acetic (p = 0.020) and decreased propionic (p = 0.004) and butyric (p = 0.006) acids proportions, increasing acetic to propionic (p = 0.008) and acetic plus butyric to propionic (p = 0.011) ratios. SSF succeeded in obtaining a stabilized material enriched in protein, but at the expense of a reduction of protein availability and organic matter digestibility. These changes should be considered before including them in a ruminant’s rations.

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“…The passing microflora is transient in the hosts and is excreted as metabolic wastes [ 6 ]. Intestinal microbes provide nutrients to the host [ 7 ], help digest stubborn food components [ 8 ], protect the host from predators [ 9 ], parasites and pathogens [ 10 ], affect the efficiency of disease vectors [ 11 ] and even affect the mating and reproductive system of the host [ 12 ]. The microbial community in the insect digestive tract plays an important role, which not only ensures the orderly operation of an insect body, but also has an important impact on human production and life in medicine, agriculture and ecology.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Intestinal Microbial Diversity of Four Species of Grasshoppers and Determination of Cellulose Digestibility

Bai

Yao

et al. 2022

Insects

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Grasshoppers (Insecta, Orthoptera, Acridoidea) are a large group of agricultural and animal husbandry pests. They have a large food intake with high utilization of plants fibers. However, the composition of the grasshopper gut microbial community, especially the relationship between gut microbial community and cellulose digestibility, remains unclear. In this research, 16S rRNA gene sequences were used to determine the intestinal microbial diversity of Acrida cinerea, Trilophidia annulata, Atractomorpha sinensis and Sphingonotus mongolicus, and Spearman correlation analysis was performed between the intestinal microbes of grasshoppers and the digestibility of cellulose and hemicellulose. The results showed that Proteobacteria was the dominant phylum and Klebsiella was the dominant genus in the guts of the four species of grasshoppers; there was no significant difference in the species composition of the gut microbes of the four species of grasshoppers. Spearman correlation analysis showed that Brevibacterium and Stenotrophomonas were significantly correlated with cellulose digestibility. Brevibacterium, Clavibacter, Microbacterium and Stenotrophomonas were significantly associated with hemicellulose digestibility. Our results confirmed that the gut microbes of grasshoppers were correlated with the digestibility of cellulose and hemicellulose, and indicated that grasshoppers may have the potential to develop into bioreactors, which can be applied to improve straw utilization efficiency in the future.

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Corn stover induces extracellular laccase activity in Didymosphaeria sp. (syn. = Paraconiothyrium sp.) and exhibits increased in vitro ruminal digestibility when treated with this fungal species

Cited by 8 publications

References 63 publications

Enhanced Biogas Production by Ligninolytic Strain Enterobacter hormaechei KA3 for Anaerobic Digestion of Corn Straw

Enhanced Biogas Production by Ligninolytic Strain Enterobacter hormaechei KA3 for Anaerobic Digestion of Corn Straw

Solid State Fermentation as a Tool to Stabilize and Improve Nutritive Value of Fruit and Vegetable Discards: Effect on Nutritional Composition, In Vitro Ruminal Fermentation and Organic Matter Digestibility

Analysis of Intestinal Microbial Diversity of Four Species of Grasshoppers and Determination of Cellulose Digestibility

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