Effect of condensed tannins from tropical legumes on the activity of fibrolytic enzymes from the rumen fungus Neocallimastyx hurleyensis

Barahona, Rolando; Sanchez, Solange; Lascano, Carlos E.; Owen, E.; Morris, Phillip; Theodorou, Michael K.

doi:10.1016/j.enzmictec.2005.10.011

Cited by 18 publications

(13 citation statements)

References 34 publications

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“…However, differences were still observed among substrates with similar tannin content (e.g., AC and LL in Trial 1 or AL and LL in Trial 2) in the increase of gas volume when PEG was added. Since the level of added PEG is sufficient to inactivate incubated tannins in all studied substrates (Makkar et al., 1995b; Bueno et al., 2008), this response suggests the importance not only of the amount of tannins, but also their chemical nature, the type of its association with the substrate and the enzyme involved (Barahona et al., 2006). Differences in tannin reactivity would explain why the response of AL to PEG in both trials was uniform throughout the 48 h incubation, whereas AC peaked at 12 h incubation and LL did from 12 to 24 h. Comparing the effect of increasing amounts of tannins extracted from quebracho or acacia at different time incubations, Bueno et al.…”

Section: Discussionmentioning

confidence: 90%

In vitro rumen fermentation of the tropical grass Pennisetum purpureum and mixtures with browse legumes: effects of tannin contents

Rodríguez¹,

Mota

Castríllo

et al. 2010

Journal of Animal Physiology and Animal Nutrition

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The fermentation of Pennisetum purpureum, alone (PP) or substituted with 0.30 of the tanniferous legumes Acacia cornigera (AC), Albizia lebbekoides (AL), Leucaena leucocephala (LL) and the saponin-rich Enterolobium cyclocarpum (EC) was studied in vitro, in presence or absence of polyethylene glycol (PEG) as tannin binder. Inactivation of tannins with PEG increased (p < 0.05) gas production with AL and LL from 8 and 12 h to the end of the incubation period respectively. When PEG was added, LL and AC promoted a higher (p < 0.05) gas volume than PP in the first 12 h incubation, and there were not differences between PP and AL. Substrate mixtures reduced (p < 0.05) methane volume produced compared with PP, but this was not related to PEG inclusion (p > 0.10). There was a trend (p = 0.06) for a higher 48 h bacterial attachment to the substrate when incubated without PEG. The decrease in fermentation of EC from 12 h incubation onwards could be associated with a negative mid-term effect of saponins over cellulolytic bacterial activity. It is concluded that the effects of tannins on microbial fermentation of mixed forage substrates are variable, depending on their nature, but do not have a marked impact on bacterial adhesion or methane production.

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Section: Discussionmentioning

confidence: 90%

In vitro rumen fermentation of the tropical grass Pennisetum purpureum and mixtures with browse legumes: effects of tannin contents

Rodríguez¹,

Mota

Castríllo

et al. 2010

Journal of Animal Physiology and Animal Nutrition

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“…Rodríguez et al (2010) observaron que la adición de TC extraídos de leguminosas tropicales, mejora los procesos de sincronía de energía y proteína en el rumen, favoreciendo la producción de proteína microbiana que puede pasar al duodeno. Las características químicas de los taninos condensados que posee la leucaena por su naturaleza pueden favorecer procesos fermentativos a nivel ruminal (Barahona et al 2006).…”

Section: Discussionunclassified

Estudio de la cinética fermentativa in vitro de mezclas de forrajes que incluyen Leucaena leucocephala proveniente de sistemas silvopastoriles intensivos (SSPi) en Colombia

Naranjo¹,

Ceballos

Gaviria

et al. 2016

Ces. Med. Vet. Zootec.

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A study of the in vitro fermentation dynamics of the forages star grass (Cynodon plectostachyus; E), Guinea grass (Megathyrsus maximus; G) and Leucaena leucocephala (L), available in intensive silvopastoral systems (ISS) was carried out. Samples of these forages were harvested in ISS set in tropical dry forest in the Valle del Cauca, Colombia. With these forages, ten mixes or different treatments were generated: E100, G100, L100, E33G66, E66G33, L33E66, L66E33, L33G66, L66G33 and L33E33G33. The shorter lag phase was observed with L100 (7.02 h) and E33G66 (7.11 h), lower (α= 0.05) than that of L33E66 (10.22 h) and G100 (9.85 h). The maximum production of gas (a) ranged between 97.34 and 253 ml/ g substrate for L100 and G100, respectively. The lowest HIP value was obtained with L100 (23.3 hours) and the gas accumulated to that point was 35.08 ml, which coincides with the lower value. The treatments that most accumulated gas were the grasses alone or their mixtures and those with the least accumulated gas included leucaena. Regarding FP, after 24 hours of incubation, the greater values occurred with L100 and mixtures that included leucaena. It is concluded that the inclusion of Leucaena was associated with decreases in the lag phase time and maximum gas production rates and with high values of FP, characteristics that may be associated with more efficient fermentation processes.

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“…These enzyme activities were rather low near affected trees. Tannins can inhibit the activity of extracellular microbial enzymes (Scalbert 1991) including polysaccharidases such as cellulase and xylanase (Gamble et al 2000;Barahona et al 2006). Numerous studies have shown that litter quality influences various enzyme activities, increasing or decreasing the litter decomposition in the soil (Fioretto et al 2000;Kourtev et al 2002;Gü sewell and Freeman 2005).…”

Section: Discussionmentioning

confidence: 99%

“…Rubber trees can respond to such wounds or stresses by producing defensive chemicals including polyphenol as tannins (Eyles et al 2004). Tannins can inhibit the activity of extracellular microbial enzymes (Scalbert 1991) including polysaccharidases such as cellulase and xylanase (Gamble et al 2000;Barahona et al 2006). Furthermore, high levels of tannins may influence soil mineralization and humus formation, decreasing soil fertility (Bradley et al 2000;Driebe and Whitham 2000;Kraus et al 2004;Nierop et al 2006;Wurzburger and Hendrick 2007).…”

Section: Discussionmentioning

confidence: 99%

Biological activity of soils under rubber trees (Hevea brasiliensis) affected by trunk phloem necrosis

et al. 2011

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Trunk phloem necrosis (TPN) is currently one of the most economically important diseases of the rubber tree (Hevea brasiliensis). Investigations of the aetiology of the disorder have failed to identify any biotic causal agents but a multidisciplinary study has recently suggested that the disease may be caused by a combination of exogenous and endogenous stresses. These stresses can affect plant physiology and may also have an impact on soil biology and soil biochemistry. In this study, macrofauna diversity and soil enzyme activities were compared for the soils under trees affected by TPN and under healthy trees. Principal component analysis revealed associations between TPN and macrofauna diversity and soil enzyme activities. Groups of ants and termites were associated with the soil under healthy and trees affected by TPN respectively. Polysaccharidase (cellulase, xylanase and, particularly, amylase) activities were lower in the soil under trees affected by TPN whereas N-acetylglucosaminidase activity was higher. These findings suggested that termite density and N-acetylglucosaminidase activity are useful indicators of TPN, while lower values of polysaccharidases activities are the consequence of this disease. The impact of TPN on soil ecosystem was discussed.

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Effect of condensed tannins from tropical legumes on the activity of fibrolytic enzymes from the rumen fungus Neocallimastyx hurleyensis

Cited by 18 publications

References 34 publications

In vitro rumen fermentation of the tropical grass Pennisetum purpureum and mixtures with browse legumes: effects of tannin contents

In vitro rumen fermentation of the tropical grass Pennisetum purpureum and mixtures with browse legumes: effects of tannin contents

Estudio de la cinética fermentativa in vitro de mezclas de forrajes que incluyen Leucaena leucocephala proveniente de sistemas silvopastoriles intensivos (SSPi) en Colombia

Biological activity of soils under rubber trees (Hevea brasiliensis) affected by trunk phloem necrosis

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