Open Collections

Hill, Richard W.; Armstrong, Eric J.; Inaba, Kazuo; Morita, Masaya; Tresguerres, Martin; Stillman, Jonathon H.; Roa, Jinae N.; Kwan, Garfield T.

<b>Abstract</b><br/>The giant clam Tridacna crocea, native to Indo-Pacific coral reefs, is noted for its unique ability to bore fully into coral rock and is a major agent of reef bioerosion. However, T. crocea’s mechanism of boring has remained a mystery despite decades of research. By exploiting a new, two-dimensional pH-sensing technology and manipulating clams to press their presumptive boring tissue (the pedal mantle) against pH-sensing foils, we show that this tissue lowers the pH of surfaces it contacts by more than 2 pH units below seawater pH day and night. Acid secretion is likely mediated by vacuolar-type H⁺-ATPase, which we demonstrate (by immunofluorescence) is abundant in the pedal mantle outer epithelium. Our discovery of acid secretion solves this decades-old mystery and reveals that, during bioerosion, T. crocea can liberate reef constituents directly to the soluble phase, rather than producing sediment alone as earlier assumed.; <b>Usage notes</b><br /><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">ME_ST_XX_00001</h4><div class="o-metadata__file-description">Individual ID: Clam 1 (Day) ; Time: 10 March 2017 14:40</div><div class="o-metadata__file-name"></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">ME_ST_XX_00006</h4><div class="o-metadata__file-description">Individual ID: Clam 5 (Day) ; Time: 10 March 2017 14:40</div><div class="o-metadata__file-name"></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">ME_ST_XX_00011</h4><div class="o-metadata__file-description">Individual ID: Clam 3 (Day) ; Time: 10 March 2017 14:40</div><div class="o-metadata__file-name"></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">ME_ST_XX_00013</h4><div class="o-metadata__file-description">Individual ID: Clam 6 (Day) ; Time: 10 March 2017 14:40</div><div class="o-metadata__file-name"></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">ME_ST_XX_00018</h4><div class="o-metadata__file-description">Individual ID: Clam 7 (Day) ; Time: 10 March 2017 14:40</div><div class="o-metadata__file-name"></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">ME_ST_XX_00021</h4><div class="o-metadata__file-description">Individual ID: Clam 8 (Day) ; Time: 10 March 2017 14:40</div><div class="o-metadata__file-name"></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">ME_ST_XX_00026</h4><div class="o-metadata__file-description">Individual ID: Clam 1 (Night) ; Time: 10 March 2017 20:45</div><div class="o-metadata__file-name"></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">ME_ST_XX_00034</h4><div class="o-metadata__file-description">Individual ID: Clam 5 (Night) ; Time: 10 March 2017 20:45</div><div class="o-metadata__file-name"></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">ME_ST_XX_00040</h4><div class="o-metadata__file-description">Individual ID: Clam 3 (Night) ; Time: 10 March 2017 20:45</div><div class="o-metadata__file-name"></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">ME_ST_XX_00042</h4><div class="o-metadata__file-description">Individual ID: Clam 6 (Night) ; Time: 10 March 2017 20:45</div><div class="o-metadata__file-name"></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">ME_ST_XX_00044</h4><div class="o-metadata__file-description">Individual ID: Clam 7 (Night) ; Time: 10 March 2017 20:45</div><div class="o-metadata__file-name"></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">ME_ST_XX_00049</h4><div class="o-metadata__file-description">Individual ID: Clam 8 (Night) ; Time: 10 March 2017 20:45</div><div class="o-metadata__file-name"></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">ME_ST_XX_00031</h4><div class="o-metadata__file-description">Individual ID: Clam 4 (Day) ; Time: 10 March 2017 14:40</div><div class="o-metadata__file-name"></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">ME_ST_XX_00076</h4><div class="o-metadata__file-description">Individual ID: Clam 4 (Night) ; Time: 10 March 2017 20:45</div><div class="o-metadata__file-name"></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">ME_ST_XX_00059</h4><div class="o-metadata__file-description">Individual ID: Clam 2 (Day) ; Time: 11 March 2017 14:06</div><div class="o-metadata__file-name"></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">ME_ST_XX_00061</h4><div class="o-metadata__file-description">Individual ID: Clam 9 (Day) ; Time: 11 March 2017 14:06</div><div class="o-metadata__file-name"></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">ME_ST_XX_00083</h4><div class="o-metadata__file-description">Individual ID: Clam 9 (Night) ; Time: 11 March 2017 22:24</div><div class="o-metadata__file-name"></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">ME_ST_XX_00088</h4><div class="o-metadata__file-description">Individual ID: Clam 2 (Day) ; Time: 11 March 2017 14:06</div><div class="o-metadata__file-name"></div></div>

Dataset

2020-06-24

CC0 1.0

https://doi.org/10.5683/SP2/WKLMJV

http://creativecommons.org/publicdomain/zero/1.0