Two-way translocation of cations by the brown rot fungus Gloeophyllum trabeum

Connolly, Jon H.; Jellison, Jody

doi:10.1016/s0964-8305(97)00019-x

Cited by 34 publications

(14 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…During the initial stage of decay, wood became ionized and the concentration of K + ions increased rapidly, decreasing electrical resistance [27,28]. After this initial increase, the fluctuating pattern of concentration levels was consistent with the activity of cord-forming, wood-decaying fungi that have been shown to move K-a highly mobile, essential base cation-in and out of decaying wood along with essential elements N and P [2,29,30]. Magnesium enrichment occurred along with K enrichment in three of six cases during the early phase of wood decay after two years of ground contact, but in the other three cases, Mg remained unchanged or lost ( Figure 5).…”

Section: Discussionmentioning

confidence: 91%

Wood Decay Fungi Restore Essential Calcium to Acidic Soils in Northern New England

Shortle

Smith

2015

Forests

View full text Add to dashboard Cite

Abstract:The depletion of root-available calcium in northern forests soils exposed to decades of increased acid deposition adversely affects forest health and productivity. Laboratory studies indicated the potential of wood-decay fungi to restore lost calcium to the rooting zone of trees. This study reports changes in concentrations of Ca, Mg, and K during decay of sapwood of spruce, maple, hemlock, and birch at two locations in northern New England, USA. Concentrations of exchangeable Ca, Mg, and Al in decayed wood residues after 10 and 12 years of ground contact were also compared. Significant loss of mass indicated by decreasing wood density occurred after two to eight years in conifers and after only two years in hardwoods. A significant gain in wood K was observed at two years, but the gain was not sustained. A significant gain in Ca concentration occurred by six years and that gain was sustained for 12 years. Concentrations of Mg varied. No significant difference in exchangeable Ca concentration was observed between decayed wood residue of spruce and maple and the forest floor. However, decayed wood residue had a much lower molar Al/Ca ratio, a conditional characteristic of sites with high root-available Ca.

show abstract

Section: Discussionmentioning

confidence: 91%

Wood Decay Fungi Restore Essential Calcium to Acidic Soils in Northern New England

Shortle

Smith

2015

Forests

View full text Add to dashboard Cite

show abstract

“…C-01 and C-02 showed no significant difference (P=0.000) for the three metals studied, suggesting that under the experimental conditions developed in this work 100 % of the metals translocation from moist soil to wood in ground contact was carried out in the fungal symplast and not due to a passive 'wicking' action 17 . In contrast, the comparison between C-01 and WS shows a significant difference from the first week for Fe (P= 0.016) and Mn (P= 0.013), and from the third week for Cu (P= 0.033).…”

Section: Holocellulose Depolymerisationmentioning

confidence: 65%

“…Most of the wood decaying fungi form mycelial networks at the soil-litter interface during the search for fresh organic resources or while scavenging for mineral nutrients 16 . Wood decay fungi can translocate significant quantities of C, nutrients (especially N, P, and S), and base cations through their mycelial cord and rhizomorph systems 17,18 , which represents a significant advantage for growth in soil 19 . Translocation is often viewed as an unidirectional process, with movement from a nutrient source (e.g.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Translocation of Transition Metals During the Degradation of Pinus Radiata by Gloeophyllum Trabeum on the Forest Soil

Pozo¹,

Melín

Elissetche

et al. 2016

J. Chil. Chem. Soc.

View full text Add to dashboard Cite

Brown rot fungi (BRF) are highly destructive wood degraders characterized by extensive degradation and mineralization of cellulose and hemicellulose, in most of the cases without causing a substantial removal of lignin. BRF have not a complete cellulase complex neither ligninolytic enzymes, therefore, has been hypothesized that to degrade wood components, a non-enzymatic mechanism based on •OH radicals production through Fenton reaction is also involved. The availability of iron limits the Fenton reaction in wood biodegradation by BRF, because this metal (and other transition metals) is found in small amounts in wood. For this reason, it has been postulated that the fungus transport metals from the soil. To study the effect of soil and transition metal translocation (Fe, Cu, and Mn) on wood biodegradation by the BRF Gloeophyllum trabeum, Pinus radiata wood chips (20 years old) were incubated with forest soil in stationary tray bioreactor for a period until 16 weeks. Translocation of transition metals, mass and wood components (extractives, carbohydrates, and lignin) loss, the decrease of holocellulose viscosity and oxalic acid production were determined at different intervals of time.Wood on soil showed a high translocation of transition metals mainly Fe. Translocation of soil metals into the wood was relevant for improving fungal growth and wood decay, which is correlated significantly with higher loss mass and wood components compared with degradation without soil.

show abstract

“…Microcosm tests demonstrate movement of Ca into decaying wood of conifers (Connolly et al 1999, Ostrofsky et al 1997) and hardwoods (Clinton et al 2009). Many of the fungi that decompose wood are large, long-lived organisms that produce extensive mycelial networks, including cords and rhizomorphs, which move essential elements for many meters through the forest floor in and out of decaying wood (Boddy and Watkinson 1995, Connolly and Jellison 1997, Lindahl et al 2001. Although commonly regarded as microorganisms, the dominant wood-decay fungi are anything but "micro-".…”

Section: Introductionmentioning

confidence: 99%

Bees of Maine, with a State Species Checklist

Dibble

Drummond

Stubbs

et al. 2017

Northeastern Naturalist

View full text Add to dashboard Cite

The Penobscot Experimental Forest (PEF) in Maine has been the site of U.S. Department of Agriculture, Forest Service, Northern Research Station (previously Northeastern Forest Experiment Station) research on northern conifer silviculture and ecology since 1950. Purchased by forest industry and leased to the Forest Service for long-term experimentation, the PEF was donated to the University of Maine Foundation in 1994. Since that time, the University and the Forest Service have worked in collaboration to advance the PEF as a site for research, demonstration, and education. This publication reports the history of the PEF during its first 60 years (1950 to 2010) and presents highlights of research accomplishments in silviculture, ecology, ecophysiology, nutrient cycling, botany, and other areas. Issues of data management and forest management planning are addressed. Also included is a bibliography of publications originating from research on the PEF, as well as recollections of a research forester stationed there for 30 years.More than half a century of work on the PEF has served as an important source of information for practitioners and policy makers in the Acadian Forest region of the northeastern United States and adjacent Canada, and informed the practice of silviculture nationally and internationally. Long-term consistency in treatment application and measurement; stand-level replication; and accessible, digital data, metadata, and records archives have facilitated hundreds of studies and made the PEF an invaluable and highly influential research site. The use of trade, firm, or corporation names in this publication is for the information and convenience of the reader. Such use does not constitute an official endorsement or approval by the U.S. Department of Agriculture or the Forest Service of any product or service to the exclusion of others that may be suitable. DEDICATIONSustaining long-term research at experimental forests depends on the foresight, commitment, and dedication of many people over decades. For more than 60 years, research on forest ecology and silviculture has been conducted on the Penobscot Experimental Forest. The men and women who do this work day in, day out, deserve much of the credit for the longevity and success of this endeavor. Among those who have contributed or are continuing to contribute to this ongoing research are scientists, professionals, and technicians with the U.S. Department of Agriculture, Forest Service and the University of Maine, who work in partnership to maintain the studies and the site. Over the years, hundreds of undergraduate and graduate students from the University of Maine and elsewhere have worked side by side with others from the University and the Forest Service to carry out the research described in these pages.We thank all those who have been involved with the Penobscot Experimental Forest since 1950 collecting, managing, and analyzing data; implementing technology transfer; maintaining the forest and infrastructure; and providing administrati...

show abstract

Two-way translocation of cations by the brown rot fungus Gloeophyllum trabeum

Cited by 34 publications

References 17 publications

Wood Decay Fungi Restore Essential Calcium to Acidic Soils in Northern New England

Wood Decay Fungi Restore Essential Calcium to Acidic Soils in Northern New England

Translocation of Transition Metals During the Degradation of Pinus Radiata by Gloeophyllum Trabeum on the Forest Soil

Bees of Maine, with a State Species Checklist

Contact Info

Product

Resources

About