Ambient ultraviolet radiation: A new factor affecting anaerobic fermentation of oat and subsequent methane emissions

Xie, Yixiao; Sun, Hong; Zhang, Changbing; Cheng, Qiming; Zheng, Yulong; Wang, Chunmei; Xiao, Bingxue; Li, Ping; Chen, Chao

doi:10.1016/j.biortech.2022.127243

Cited by 12 publications

(6 citation statements)

References 40 publications

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“…Silage preservation is crucial for maintaining forage quality and alleviating seasonal and regional imbalances in quality forage supply. Recently, the study of oat silage has attracted global attention, because of its palatability, high digestibility, nutritional value, and production benefits for herbivores in most countries ( 4 , 5 ).…”

Section: Introductionmentioning

confidence: 99%

Community Synergy of Lactic Acid Bacteria and Cleaner Fermentation of Oat Silage Prepared with a Multispecies Microbial Inoculant

et al. 2023

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Oat natural silage is rich in Enterobacteriaceae , increasing gas production and fermentation loss. Lactic acid bacteria interact synergistically to form a dominant community during ensiling. Pediococci grow vigorously in the early stage of fermentation and create an anaerobic environment. Lactobacilli inhibit the harmful microorganisms and result in cleaner fermentation of oat silage.

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Section: Introductionmentioning

confidence: 99%

Community Synergy of Lactic Acid Bacteria and Cleaner Fermentation of Oat Silage Prepared with a Multispecies Microbial Inoculant

et al. 2023

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“…This study showed that under T1, the Cond of pigmented potatoes leaves increased, CI and Trmmol, while under T2, it decreased, indicating that low dose UV-B radiation had a particular regulatory effect on the stomatal opening and closing of pigmented potatoes leaves. The result of UV-B radiation on the photosynthesis of pigmented potatoes leaves may be mainly caused by stomatal limiting factors ( Murali and Teramura, 1987 ); radiation causes the peroxidation of the cell plasma membrane, affect the photosynthesis of plants, decrease the content of photosynthetic pigments in plants, and decreases the net photosynthetic rate and respiratory rate ( Xie et al., 2022 ). However, compared with the CK, the T1 keeps the number of tubers per plant and the yield per unit area unchanged, and the root shoot ratio significantly increases.…”

Section: Discussionmentioning

confidence: 99%

Different doses of UV-B radiation affect pigmented potatoes’ growth and quality during the whole growth period

Chen

Xiao

et al. 2023

Front. Plant Sci.

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IntroductionUltraViolet- Biological (UV-B) plays an important role in plant growth and the formation of nutrients, especially secondary metabolites.MethodsTo investigate the phenotypic changes, physiological responses, and internal genes expression of potatoes under enhanced UV-B radiation, two Yunnan native pigmented potatoes varieties named “Huaxinyangyu” and “Jianchuanhong” were exposed to different UV-B doses during whole growth duration.ResultsPearson correlation analysis and principal component analysis showed that the agronomic characters (i.e. plant height, pitch, stem diameter, and root shoot ratio) of plants treated with low dose ultraviolet (T1) did not change significantly compared with the absence of ultraviolet radiation (CK), even unit yield increased slightly; Similarly, under low UV-B radiation, photosynthetic and physiological parameters (photosynthetic rate, stomatal conductance, respiration rate, and transpiration rate) of leaves were significantly increased. In addition, low-dose UV-B treatment promoted the synthesis of tuber nutrients (e.g. phenols, chlorogenic acids, flavonoids, vitamin C, anthocyanins) and increased the expression of structural genes for anthocyanin synthesis. The number of nutrients and gene expression in tubers raised by the “Huaxinyangyu” was the highest at 84 days, and “Jianchuanhong” was the highest at 72 days. However, the higher dose of UV-B radiation (T2) will cause greater damage to the pigmented potatoes plants, making the plants reduce the yield, and significantly reduce the tuber nutrients.DiscussionThis study showed that proper ultraviolet radiation will not harm pigmented potatoes, but also improve their oxidative stress tolerance, increase the structure genes expression of anthocyanins and continuously synthesize beneficial substances to improve the yield and quality of potato tubers.

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“…The bacterial community compositions of both forage and silage were profiled according to the method of Xie et al (2022) . Briefly, 10 g of either fresh forage or silage sample was blended with 40 mL of saline solution (NaCl, 8.5 g kg –1 ) and shaken for 120 min at 120 rpm.…”

Section: Methodsmentioning

confidence: 99%

“…However, in a recent study, we used an ultraviolet reduction approach to enrich the epiphytic microflora, including both LAB and enterobacteria, of oat silage and observed improved fermentation quality and enhanced methane emissions ( Xie et al, 2022 ). The enrichment of epiphytic microflora by using aerobically incubated forage juice as an inoculant has not been investigated.…”

Section: Introductionmentioning

confidence: 99%

Effect of epiphytic microflora after aerobic enrichment and reconstitution on fermentation quality and microbial community of corn stalk silage and Pennisetum sinese silage

Xie

Yao

et al. 2022

Front. Microbiol.

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IntroductionThe objective of this study was to evaluate the effects of enrichment and reconstitution of the forage epiphytic microflora on the fermentation quality, chemical composition, and bacterial community composition of corn stalk and Pennisetum sinese silages.MethodsThe forage juice of fresh corn stalk and P. sinese were collected, diluted by gradient (10–1 to 10–5), and aerobically incubated to enrich and reconstitute the epiphytic microflora. Fresh corn stalk and P. sinese were ensiled for 3, 15, and 45 days after inoculation with either the original (D0) pre-incubated juices, or 10–1 (D1), 10–3 (D3), or 10–5 (D5) diluted and pre-incubated juices.ResultsThe lowest pH was found in the D3 treatment of the corn stalk silage. In P. sinese silage, the hemicellulose content of D3 and D5 treatments was 9.50 and 11.81% lower than that of D0 treatment (P < 0.05). In corn stalk silage, the neutral detergent fiber content was significantly lower in the D3 treatment than in the other treatments (P < 0.05). Both corn stalk and P. sinese silages exhibited a high abundance of Enterobacter during ensiling, resulting in high levels of acetic acid.ConclusionAlthough the dilution and enrichment of the epiphytic microflora did not lead to full lactic acid fermentation, these pre-treatments were found to alter the microbial metabolites and chemical composition of the silage. These results provide a new perspective on the production of pre-fermented silage inoculant.

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Ambient ultraviolet radiation: A new factor affecting anaerobic fermentation of oat and subsequent methane emissions

Cited by 12 publications

References 40 publications

Community Synergy of Lactic Acid Bacteria and Cleaner Fermentation of Oat Silage Prepared with a Multispecies Microbial Inoculant

Community Synergy of Lactic Acid Bacteria and Cleaner Fermentation of Oat Silage Prepared with a Multispecies Microbial Inoculant

Different doses of UV-B radiation affect pigmented potatoes’ growth and quality during the whole growth period

Effect of epiphytic microflora after aerobic enrichment and reconstitution on fermentation quality and microbial community of corn stalk silage and Pennisetum sinese silage

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