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160 changes: 97 additions & 63 deletions docs/communities/KB1_Chlorinated_Ethene_Dechlorinating_Consortium.html
Original file line number Diff line number Diff line change
Expand Up @@ -611,21 +611,16 @@ <h2>Ecological Interactions</h2>
<div class="network-tooltip" id="network-tooltip" role="status" aria-live="polite"></div>
<svg id="network-svg" role="img" aria-labelledby="network-svg-title network-svg-desc">
<title id="network-svg-title">Ecological interaction network for KB-1 Chlorinated Ethene Dechlorinating Consortium</title>
<desc id="network-svg-desc">Bipartite graph where circle nodes represent taxa and each ecological interaction is drawn as a distinct non-circular symbol, with colour repeating the same distinction (cross-feeding, syntrophy).</desc>
<desc id="network-svg-desc">Bipartite graph where circle nodes represent taxa and each ecological interaction is drawn as a distinct non-circular symbol, with colour repeating the same distinction.</desc>
</svg>
<div class="network-legend">
<div class="legend-item">
<span class="legend-swatch legend-circle" style="background: #7a7a7a;"></span> Taxon
</div>
<div class="legend-item">
<svg class="legend-symbol" width="14" height="14" viewBox="-9 -9 18 18"
aria-hidden="true" data-symbol="symbolDiamond"
data-color="#57c7ab"></svg> Cross-feeding
</div>
<div class="legend-item">
<svg class="legend-symbol" width="14" height="14" viewBox="-9 -9 18 18"
aria-hidden="true" data-symbol="symbolTriangle"
data-color="#7f30cf"></svg> Syntrophy
aria-hidden="true" data-symbol="symbolTriangle2"
data-color="#929caa"></svg> Other
</div>
</div>
</div>
Expand All @@ -634,14 +629,21 @@ <h2>Ecological Interactions</h2>
<div class="interaction-card">
<div class="interaction-header">
<h3>Reductive Dechlorination to Ethene</h3>
<span class="interaction-type">SYNTROPHY</span>
</div>
<p class="prewrap interaction-description">Dehalococcoides-related organisms in KB-1 use chlorinated ethenes as electron acceptors under anaerobic conditions, driving sequential reductive dechlorination of PCE and TCE to ethene in laboratory microcosms and field groundwater.</p>
<p class="prewrap interaction-description">KB-1 bioaugmentation produced ethene in laboratory microcosms and the Kelly Air Force Base field test. Field ethene accounted for chlorinated-ethene mass loss and KB-1-associated Dehalococcoides spread downgradient. These are consortium outcomes, not assignment of every PCE/TCE reaction to Dehalococcoides. Separate vitamin-free KB-1 enrichment experiments also sustained TCE-to-ethene conversion. The canonical taxa are a community subset, not a proven three-member inoculant or reciprocal syntrophy.</p>


<p><strong>Source Taxon:</strong> Dehalococcoides spp. in KB-1</p>


<p><strong>Participating Taxa:</strong>

Dehalococcoides spp. in KB-1,

Acetobacterium spp. in KB-1,

Sporomusa spp. in KB-1

</p>



Expand Down Expand Up @@ -696,23 +698,39 @@ <h4>Evidence</h4>

</li>

<li class="evidence-item">
<div>

<a href="https://pubmed.ncbi.nlm.nih.gov/31441646/"
class="pmid-link" target="_blank" rel="noopener noreferrer">PMID:31441646</a>

- SUPPORT (IN_VITRO)
</div>

<div class="snippet">"Acetobacterium supports complete TCE dechlorination by Dehalococcoides"</div>

</li>

</ul>

</div>

<div class="interaction-card">
<div class="interaction-header">
<h3>Acetogen Cobamide Support</h3>
<span class="interaction-type">CROSS_FEEDING</span>
</div>
<p class="prewrap interaction-description">Acetobacterium and Sporomusa provide a supporting acetogenic guild in KB-1. Acetobacterium can synthesize the cobalamin lower ligand DMB, supporting Dehalococcoides dechlorination in vitamin-free medium and highlighting a cofactor-mediated syntrophic dependency.</p>
<p class="prewrap interaction-description">Vitamin-free KB-1 transfers sustained TCE dechlorination with increased Acetobacterium abundance and cobalamin, supported by a DMB-biosynthesis operon. These positive community experiments support Acetobacterium-associated cofactor provision. PARTIAL - donor-resolved transfer, exclusive mediation and the return benefit remain unresolved. The canonical Acetobacterium woodii label is not verified as the source population Acetobacterium sp. KB-1; its grounding remains #1526. Acid inhibition is distinct from cofactor shortage: DMB did not rescue stalled low-pH dechlorination, whereas pH adjustment did.</p>



<p><strong>Source Taxon:</strong> Acetobacterium spp. in KB-1</p>

<p><strong>Participating Taxa:</strong>

Dehalococcoides spp. in KB-1,

<p><strong>Target Taxon:</strong> Dehalococcoides spp. in KB-1</p>
Acetobacterium spp. in KB-1

</p>



Expand Down Expand Up @@ -744,7 +762,7 @@ <h3>Acetogen Cobamide Support</h3>

<div class="flow-item">
<span class="flow-arrow">→</span> Reductive Dechlorination to Ethene
<p class="prewrap causal-description">Acetogen-derived cobalamin support supplies the cofactor context required for complete Dehalococcoides reductive dechlorination in KB-1 without exogenous vitamins.</p>
<p class="prewrap causal-description">PARTIAL - Acetobacterium-associated cofactor availability can support Dehalococcoides dechlorination in the vitamin-free KB-1 laboratory cultures. Community transfers, cofactor measurements and biosynthetic genes support this route, but do not isolate its exclusive contribution or establish its mediation of the separate field bioaugmentation result.</p>
</div>

</div>
Expand All @@ -763,7 +781,7 @@ <h4>Evidence</h4>
- SUPPORT (IN_VITRO)
</div>

<div class="snippet">"the lower ligand of cobalamin, and Sporomusa are dominant acetogens"</div>
<div class="snippet">"Acetobacterium supports complete TCE dechlorination by Dehalococcoides"</div>

</li>

Expand All @@ -787,16 +805,17 @@ <h4>Evidence</h4>
<div class="interaction-card">
<div class="interaction-header">
<h3>Sporomusa DMB-Guided Cobalamin Support</h3>
<span class="interaction-type">CROSS_FEEDING</span>
</div>
<p class="prewrap interaction-description">Sporomusa is a dominant acetogen in vitamin-free KB-1 cultures. A Sporomusa sp. strain KB-1 isolate was also tested as a Dehalococcoides partner population; its phenolic cobamides did not by themselves satisfy Dehalococcoides corrinoid requirements, but DMB amendment guided cobalamin biosynthesis in Sporomusa sp. cocultures and supported Dehalococcoides reductive dechlorination activity and growth.</p>
<p class="prewrap interaction-description">Controlled cocultures tested a Sporomusa sp. KB-1 isolate with Dehalococcoides strains BAV1, GT and FL2. DMB amendment changed donor cobamide chemistry and restored partner dechlorination and growth; without DMB, the phenolic cofactors did not support those requirements. FL2 still produced both VC and ethene. The explicit canonical participant is the KB-1-derived donor only: these external recipient strains are not established as the record&#39;s KB-1 Dehalococcoides population. This positive conditional partner-support result is not demonstrated mediation of the field endpoint.</p>



<p><strong>Source Taxon:</strong> Sporomusa spp. in KB-1</p>

<p><strong>Participating Taxa:</strong>

Sporomusa spp. in KB-1

<p><strong>Target Taxon:</strong> Dehalococcoides spp. in KB-1</p>
</p>



Expand All @@ -823,26 +842,10 @@ <h3>Sporomusa DMB-Guided Cobalamin Support</h3>
class="term-link" target="_blank" rel="noopener noreferrer">GO:0006766</a>)
</li>

<li>
cobalamin transport
(<a href="http://amigo.geneontology.org/amigo/term/GO:0015889"
class="term-link" target="_blank" rel="noopener noreferrer">GO:0015889</a>)
</li>

</ul>



<div class="interaction-flow">
<strong>Downstream Effects:</strong>

<div class="flow-item">
<span class="flow-arrow">→</span> Reductive Dechlorination to Ethene
<p class="prewrap causal-description">DMB-guided cobalamin support can supply the corrinoid cofactor context required for Dehalococcoides reductive dechlorination.</p>
</div>

</div>



<h4>Evidence</h4>
Expand Down Expand Up @@ -896,6 +899,25 @@ <h4>Evidence</h4>

<!-- Associated Datasets -->

<section id="discussions">
<h2>Knowledge gaps &amp; discussions <span class="muted">(1)</span></h2>

<div class="discussion">
<h3>
<span class="role-badge">KNOWLEDGE_GAP</span>
<span class="role-badge">OPEN</span>
Which same-system cofactor routes mediate KB-1 dechlorination?
</h3>
<p class="prewrap">Keep the positive field outcome, vitamin-free community support and controlled donor chemistry/partner phenotypes distinct. Remove the Sporomusa-to-KB-1-outcome arrow because external recipient strains were not identified as the KB-1 population. The Acetobacterium route remains PARTIAL for exact transfer and field mediation. Canonical taxonomy and non-graph blocks are preserved, not recertified; #1526 tracks Acetobacterium identity. Full 2013/2019 primary main texts read; 2019 selected tables/figures inspected, 2002 field abstract only. No separate supplements/raw-data audit or new graph structure.</p>

<p class="muted small">Attaches to: <code>ecological_interactions#Reductive Dechlorination to Ethene</code>, <code>ecological_interactions#Acetogen Cobamide Support</code>, <code>ecological_interactions#Sporomusa DMB-Guided Cobalamin Support</code></p>




</div>

</section>

<!-- Environmental Factors -->

Expand Down Expand Up @@ -1155,7 +1177,7 @@ <h4 style="color: var(--text);">Evidence</h4>

(function() {
var intId = "interaction:0";
var intType = "SYNTROPHY";
var intType = "UNKNOWN";
var metabolites = [];


Expand All @@ -1168,7 +1190,7 @@ <h4 style="color: var(--text);">Evidence</h4>

var processes = [];

var evidenceCount = 2;
var evidenceCount = 3;

nodes.push({
id: intId,
Expand All @@ -1181,18 +1203,28 @@ <h4 style="color: var(--text);">Evidence</h4>
});


var srcKey = "Dehalococcoides spp. in KB-1";
if (taxonNodeIds[srcKey]) {
links.push({ source: taxonNodeIds[srcKey], target: intId });
}


var participantKeys = [

"Dehalococcoides spp. in KB-1",

"Acetobacterium spp. in KB-1",

"Sporomusa spp. in KB-1"

];
participantKeys.forEach(function(key) {
if (taxonNodeIds[key]) {
links.push({ source: taxonNodeIds[key], target: intId });
}
});

})();

(function() {
var intId = "interaction:1";
var intType = "CROSS_FEEDING";
var intType = "UNKNOWN";
var metabolites = [];


Expand All @@ -1218,23 +1250,26 @@ <h4 style="color: var(--text);">Evidence</h4>
});


var srcKey = "Acetobacterium spp. in KB-1";
if (taxonNodeIds[srcKey]) {
links.push({ source: taxonNodeIds[srcKey], target: intId });
}


var participantKeys = [

var tgtKey = "Dehalococcoides spp. in KB-1";
if (taxonNodeIds[tgtKey]) {
links.push({ source: intId, target: taxonNodeIds[tgtKey] });
}
"Dehalococcoides spp. in KB-1",

"Acetobacterium spp. in KB-1"

];
participantKeys.forEach(function(key) {
if (taxonNodeIds[key]) {
links.push({ source: taxonNodeIds[key], target: intId });
}
});

})();

(function() {
var intId = "interaction:2";
var intType = "CROSS_FEEDING";
var intType = "UNKNOWN";
var metabolites = [];


Expand All @@ -1248,8 +1283,6 @@ <h4 style="color: var(--text);">Evidence</h4>

processes.push("vitamin metabolic process");

processes.push("cobalamin transport");


var evidenceCount = 3;

Expand All @@ -1264,17 +1297,18 @@ <h4 style="color: var(--text);">Evidence</h4>
});


var srcKey = "Sporomusa spp. in KB-1";
if (taxonNodeIds[srcKey]) {
links.push({ source: taxonNodeIds[srcKey], target: intId });
}


var participantKeys = [

var tgtKey = "Dehalococcoides spp. in KB-1";
if (taxonNodeIds[tgtKey]) {
links.push({ source: intId, target: taxonNodeIds[tgtKey] });
}
"Sporomusa spp. in KB-1"

];
participantKeys.forEach(function(key) {
if (taxonNodeIds[key]) {
links.push({ source: taxonNodeIds[key], target: intId });
}
});

})();

Expand Down
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