Laccase: new functions for an old enzyme

Mayer, Alfred M.; Staples, Richard C.

doi:10.1016/s0031-9422(02)00171-1

Cited by 1,173 publications

(675 citation statements)

References 141 publications

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“…Cherney et al, 1991;Sewalt et al, 1997;Turner et al, 2001), lignolytic fungi (e.g. Akin et al, 1995;Mayer and Staples, 2002;Sun and Cheng, 2002) and exogenous enzymes (McAllister et al, 2001;Beauchemin et al, 2004;Gonzá lez-García et al, 2009b).…”

Section: Feeding and Nutrition Of Ruminants In The New Contextmentioning

confidence: 99%

Sustainability of ruminant agriculture in the new context: feeding strategies and features of animal adaptability into the necessary holistic approach

Bocquier

García

2010

Animal

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There are numerous recent studies highlighting sustainability problems for the development of ruminant production systems (RPS) while facing increasing human food necessities and global climate change. Despite the complexity of the context, in our view the main objectives of the ruminants' physiologist should be convergent for both industrialized (IC) and developing countries (DC) in a common and global strategy of advancing knowledge. In DC, this means improving the efficiency of RPS, taking into account the unique possibility of using rangelands. For IC settings, RPS should be revisited in terms of autonomy and environment-friendly feeding and managing practices. Assuming that competition for feed/food use is still a crucial criterion, future ruminant feeding systems (FeSyst) should preferably focus on lignocellulosic sources. According to biome distributions, and the recent increases in volumes of crop residues and their by-products, the annually renewed volumes of these biomasses are considerable. Therefore, we need to redesign our strategies for their efficient utilization at the local level. For this purpose, digestion processes and rumen functioning need to be better understood. The renewed vision of ruminal digestion through the reduction of greenhouse gas emissions is also a key aspect as it is an environmental demand that cannot be ignored. With regard to other ruminants' physiological functions, accumulated knowledge could be mobilized into an integrative approach that puts forward the adaptive capacities of animals to face variability in quantity and quality of supplied feeds. Basically, the reduction of inputs that were traditionally used to ensure FeSyst will need more flexible animals. In that sense, the concepts of homeostasis and teleophorhesis need to be updated and adapted to domestic species and breeds that were until now largely excluded from the dominant productive systems. In conclusion, a more holistic approach of research targets is required in which physiological functions and farmers' practices must converge and respond to each particular situation in an integral, dynamic and flexible conceptual perspective. From a scientific point of view, both for ICs and DCs, a broader range of experimental scenarios should be explored in order to arrive at innovative practices and solutions that respect environmental, ethical and economical issues. The clear challenge is to in evaluate the sustainability of RPSs. This includes, in our opinion, a strong interaction with other disciplines (multi-and trans-disciplinary conception), thus structuring new relevant indicators for the evaluation sustainability.

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Section: Feeding and Nutrition Of Ruminants In The New Contextmentioning

confidence: 99%

Sustainability of ruminant agriculture in the new context: feeding strategies and features of animal adaptability into the necessary holistic approach

Bocquier

García

2010

Animal

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“…White-rotting fungi such as G. boninense have Cu-containing enzymes, laccases, among their complex enzymatic system to degrade the wood. Laccases constitute an important virulence factor for many plant-pathogenic fungi which enables them to degrade physical barriers, such as lignin and detoxify phytoalexins and tannins in the infection site (Mayer and Staples, 2002). The detoxification of tannic acid in Ganoderma Selective Medium (GSM) is revealed by the brown coloration exploited to confirm the internal colonization of RWB by G. boninense.…”

Section: Percentage Of Infected Bulb Tissues and Disease Severity Indmentioning

confidence: 99%

EFFECT OF MICRONUTRIENTS-ENRICHED FERTILIZERS ON BASAL STEM ROT DISEASE INCIDENCE AND SEVERITY ON OIL PALM (<i>ELAEIS GUINEENSIS</i> JACQ.) SEEDLINGS

Hanafi¹,

Idris²,

Kadir³

et al. 2014

American Journal of Applied Sciences

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“…The degradation of PCBs resulted from the activity of ligninolytic enzymes and the optimum pH for laccase activity for the most efficient removal of different organic pollutants was confirmed from 3 to 7 (Mayer andStamples 2002, Keum andLi 2004). During the experiment, the acidification of the growth medium could be a result of the decomposition of mycelium or wheat straw chaff.…”

Section: Discussionmentioning

confidence: 78%

Evaluation of polychlorinated biphenyl degradation through refuse from Pleurotus ostreatus, Lentinula edodes and Agaricus bisporus production

Gąsecka

Drzewiecka

Siwulski

et al. 2015

Folia Horticulturae

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White rot fungi (WRF) are known to have the ability to degrade organic pollutants with a structure similar to lignin. Because of this, the degradation of polychlorinated biphenyls (PCBs) congeners no. 28, 52, 101, 138, 153 and 180 by substrate before fruiting (substrate) and/or after fruiting (SMS) from cultivated mushrooms Pleurotus ostreatus, Lentinula edodes and Agaricus bisporus was examined. The experiment was carried out in four replications for each treatment using a mixture of substrate/SMS and sandy soil with PCBs at a concentration of each congener at 50 and 100 µg kg -1 soil DW. The results indicate that degradation was dependent on substrate/SMS addition, the concentration of PCBs and time of incubation. The efficiency of PCB degradation was generally reduced with the number of chlorine atoms in the structure of congeners: 28, 52, 101, 138, 153 or 180. In all combinations, degradation increased with incubation time. Degradation by SMS was lower in comparison to degradation by a substrate of the same mushroom. The degree of degradation of a single PCB after 12 weeks of incubation for A. bisporus ranged from 31.32 ± 1.52 to 83.91 ± 1.07%, while for P. ostreatus it was between 37.88 ± 2.54 and 78.29 ± 1.41%; for L. edodes it ranged from 17.38 ± 1.06 to 75.30 ± 1.46%. The best average degradation was confirmed for 20% SMS of A. bisporus at 50 µg kg -1 PCB.Ke y wor d s: congener, mycoremediation, spent mushroom substrate, white rot fungi

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Laccase: new functions for an old enzyme

Cited by 1,173 publications

References 141 publications

Sustainability of ruminant agriculture in the new context: feeding strategies and features of animal adaptability into the necessary holistic approach

Sustainability of ruminant agriculture in the new context: feeding strategies and features of animal adaptability into the necessary holistic approach

EFFECT OF MICRONUTRIENTS-ENRICHED FERTILIZERS ON BASAL STEM ROT DISEASE INCIDENCE AND SEVERITY ON OIL PALM (<i>ELAEIS GUINEENSIS</i> JACQ.) SEEDLINGS

Evaluation of polychlorinated biphenyl degradation through refuse from Pleurotus ostreatus, Lentinula edodes and Agaricus bisporus production

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