Miraculous mussels heal in days DOI Open Access
Kathryn Knight

Journal of Experimental Biology, Год журнала: 2021, Номер 224(19)

Опубликована: Окт. 1, 2021

For many of us, breaking a bone is rare and hopefully no more than once in lifetime experience. It's excruciating recovery can take weeks. But the shells mussels (Mytilus californianus) clinging to shoreline are continually at risk harm, battered by waves debris hurled surf. Even when tide out, mussel vulnerable hungry crustaceans taking nip with their powerful claws. ‘The intertidal zone be particularly dangerous place. It harsh environment’, says Rachel Crane from Stanford University, USA. So how much damage do these resilient structures sustain after substantial assault quickly they recover? Crane, along José Diaz Reyes Mark Denny, both same university, headed down seashore below Hopkins Marine Station, USA, find out.Back lab bucket full molluscs, repeatedly compressed between two plates stress them, adjusting level force depending on size. Then, duo checked for testing total bearing could withstand. Sure enough, squashed were significantly weaker that had not been compressed; only withstand forces 54 N less (equivalent weight 5.4 kg) unstressed And opened up looked surface within, sometimes saw networks cracks radiating across dome shell or larger individual cracks. Repeatedly pounding taken toll shells, but well molluscs recover?Allowing 1, 2 4 weeks recuperate, team was astonished see every bit as tough unharmed within week. ‘We amazed we data. We expecting maybe even months repair shells; I never thought response would so fast’, Crane. And, she rechecked later, impressed dealt hardest blows most resilient, coming back stronger. However, effort soft internal part weighing 7% tissue remained unassailed.In addition, scrutinised signs recovery, although some showed evidence regrowth area near surrounding cracks, fissures unhealed, though restored strength. ‘Mussels may have self-healing compensatory mechanism does involve deposition’ compared mollusc's healing rates those other armoured surf residents, streaks ahead, recuperating matter days, whereas snails damage. also suggests mussels’ ability recover rapidly account undisputed success one world's turbulent environments. ‘Molluscs protect themselves this amazing dynamic armour – animals resist repeated insults, respond, strengthen quickly’,

Язык: Английский

Mussels Repair Shell Damage despite Limitations Imposed by Ocean Acidification DOI Creative Commons
Matthew N. George, Michael J. O’Donnell,

Michael Concodello

и другие.

Journal of Marine Science and Engineering, Год журнала: 2022, Номер 10(3), С. 359 - 359

Опубликована: Март 3, 2022

Bivalves frequently withstand shell damage that must be quickly repaired to ensure survival. While the processes underlie larval development have been extensively studied within context of ocean acidification (OA), it remains unclear whether repair is impacted by elevated pCO2. To better understand stereotypical process, we monitored mussels (Mytilus edulis) with sublethal breached mantle cavity both field and laboratory conditions characterize deposition rate, composition, integrity shell. Results were then compared a experiment wherein trossulus) in one seven pCO2 treatments (400–2500 µatm). Shell proceeded through distinct stages; an organic membrane first covered damaged area (days 1–15), followed calcite crystals 22–43) aragonite tablets 51–69). OA did not impact ability close drill holes, nor microstructure, or end-point after 10 weeks, as measured µCT SEM imaging, energy-dispersive X-ray (EDX) analysis, mechanical testing. However, significant interactions between pCO2, length exposure treatment conditions, strength inorganic content shell, physiological condition observed. These results suggest while does prevent adult from repairing mineralizing may elicit stress responses impose energetic constraints on mussel physiology.

Язык: Английский

Процитировано

6
Direct control of shell regeneration by the mantle tissue in the pearl oyster Pinctada fucata DOI
Jingliang Huang, Yangjia Liu,

Taifeng Jiang

и другие.

Journal of Structural Biology, Год журнала: 2023, Номер 215(2), С. 107956 - 107956

Опубликована: Март 17, 2023

Язык: Английский

Процитировано

3
Supervariate Ceramics: Demineralization via Gelation in Neutral Nontoxic Solutions DOI Open Access
Xinxue Tang, Yuk‐Tong Cheng, Junda Shen

и другие.

Advanced Engineering Materials, Год журнала: 2023, Номер 25(17)

Опубликована: Июнь 3, 2023

Demineralization is essential in various fields, from ocean acidification to orthopaedics. Currently, demineralization generally ascribed etching by corrosive acids. Herein, the “supervariate” strategy for of calcite (the most abundant biomineral on Earth, and a major component Earth's crust) disclosed, which nontoxic solutions multiple ionic species are used convert into multi‐ionic amorphous gel that exhibits moderate flowability, means it can be conveniently collected, stored, transferred, moulded. This transformation enabled facile formation highly stable gels featuring high entropy (as result their disordered structure, containing hydration species) resistance crystallization. Overall, novel, safe, generic method etching, gelatinating, processing solid ceramics described.

Язык: Английский

Процитировано

2
Long-Term Monitoring of Rocky Intertidal Communities: Lessons and Implications from the Redwood National and State Parks, Northern California DOI

David Lohse,

Karah Ammann,

Eric C. Dinger

и другие.

Northwest Science, Год журнала: 2023, Номер 96(3-4)

Опубликована: Ноя. 21, 2023

A challenge modern-day ecologists and resource managers face is how to separate natural variations in populations from changes caused by human activities (e.g., climate change). Long-term monitoring programs provide valuable information assist this endeavor. This study details the initial findings of a long-term program initiated 2004 monitor rocky intertidal communities within Redwood National State Parks, located northern California. Permanent plots were established at three sites using protocols developed Multi-Agency Rocky Intertidal Network, consortium that monitors along western coast North America. Replicate abundance key taxa, including mussels (Mytilus californianus), barnacles (Chthamalus dalli Balanus glandula), red alga (Endocladia muricata), rockweeds (Pelvetiopsis limitata Fucus gardneri). Plots sampled annually since they established. Results first 15 years indicate all taxa exhibited substantial short-term (annual) variation, with E. muricata exhibiting most. For barnacles, such correlated measures recruitment. Except for P. limitata, other target experienced least one period large-scale major change, where abundances decreased dramatically (> 50% long term mean) simultaneously most plots. However, almost cases recovered, resulting no apparent changes. few instances detected, it possible result may be an artifact analytical methods used assess them. The potential implications finding are discussed.

Язык: Английский

Процитировано

0
Announcing the 2021 Journal of Experimental Biology Outstanding Paper Prize shortlist and winner DOI Open Access
Kathryn Knight

Journal of Experimental Biology, Год журнала: 2022, Номер 225(2)

Опубликована: Янв. 15, 2022

Rarely has science been so high on the news agenda. Thanks to Covid-19 pandemic, terms such as antigen, mRNA and vaccination are now routinely bandied about, recent COP26 conference means that climate change is seldom far from headlines. Many of scientific discoveries highlighted in 2021 were fruit years even decades toil enterprise inspired by keen minds driven forward passion graduate students postdocs. ‘The past couple have tough going with impacts recognising celebrating great discoveries, especially undertaken early career researchers, taken greater significance’, says Craig Franklin, Editor-in-Chief Journal Experimental Biology. Since JEB launched Outstanding Paper Prize 2005, memory Bob Boutilier, celebrate early-career researchers their contributions science, we featured ranging elastic energy storage during guinea fowl jumping carbohydrate regulation ant colony growth. And now, calendar clicks around another year, journal Editors pleased announce 12 papers shortlisted for award.‘This year's shortlist outstanding reflects breadth exceptional quality come expect delighted publish JEB’, who nominated Sugjit Padda, Jordan Glass Zachary Stahlschmidt's research article, University Pacific, USA, investigating how life history influences effect heat waves drought field crickets (jeb236398). ‘This was an elegant study… truly integrative’, adding he really enjoys papers, this one, consider impact multiple stressors species may mitigate costs. In paper examining heatwaves, time focusing southern pied babblers South Africa, Lesedi Moagi Andrew McKechnie, African National Biodiversity Institute, colleagues other institutions analysed temperatures affected birds’ stress hormone levels (jeb242535). Katie Gilmour, oversaw peer review says, ‘I impressed patience persistence authors, collected faecal samples (nearly 900) wild individually identified study birds following individuals collecting droppings within 1 min defecation’.In Julian Dow's paper, Ya-qi Chen Xiamen University, China, Yun-Wei Dong Ocean China Chinese periwinkle Echinolittorina malaccana able withstand up 55°C switching anaerobic metabolism producing molecules mop toxic forms oxygen (jeb238659). used cutting edge metabolomics elicit some genuinely novel insights into temperature adaptation a remarkable, heat-tolerant mollusc’, Dow. Meanwhile, Emily Hardison, Erika Eliason California, Santa Barbara, investigated changing diet could affect fish cope rising (jeb242846). important but understudied issue critical implications predicting organisms will respond change’, Editor Trish Schulte, recalling team discovered ability switch allow survive rises would place less versatile diners at risk.Continuing physiological theme, Stuart Egginton's nomination, ‘New allosteric effects CO2 bicarbonate crocodilian hemoglobin’ (jeb242615), Naim Bautista Angelo Fago (Aarhus Denmark) international collaborators, shows build-up ions red blood cells facilitates delivery tissues diving, while desaturation allows transport. imaginative provides first integrative link between unusual haemoglobin transport offering stimulus further work both mechanisms potential insight challenges’, Egginton.Monica Daley, Sheila Patek Pat Wright each mechanical structural properties three uniquely different structures: mussel shells, eggshells robin moth cocoons. Reflecting Rachel Crane Mark Denny's analysis revealing fractured shells recover strength heal dramatically matter days (jeb242681), Daley authors present clear thorough investigation timeline shell repair, showing evidence surprisingly rapid repair do job discussing broader ecological risks benefits survival’. contrast, eggs brown-headed cowbirds malicious pecks intent upon parasitising nest which they deposited parents (jeb243016). [Analía López Universidad de Buenos Aires, Argentina USA] integrated substantial cross-species rigorous experimental methods compare eggshell properties, morphology, ultrastructural features’, Patek, impressive fascinating paper’. Moving relative cocoon designs overwintering pupae, recalls inventive Adam Parlin Patrick Guerra (University Cincinnati, USA), baggy cocoons capable storing water dry winters, more compact offer better protection damp conditions wet winters (jeb239780). This strategy ensures pupae develop successfully, regardless endure. like set out hypotheses methodology understand fundamental intriguing structure–function relationship’, she says.Switching focus neuroethology, core journal, Almut Kelber's investigates echolocating harbour porpoises distinguish objects should be too close together distinguished, Ken Lukowiak's nomination looks fly memories impacted gut flora. studies ask seemingly simple question highly sophisticated same time’, Kelber, referring Chloe Malinka Aarhus, where presented spheres little 13.5 cm apart, find whether distinguishing them echolocation (jeb242779). ‘Not only does answer – it possible much closer than expected neural sound system also reveals strategies animals use’, Kelber. Equally impressively, Valeria Silva Valparaíso, Chile, painstakingly bred flies lacking microbiome show sleep, learn insects flora significantly impaired (jeb233619). ‘[This] lesson all us take heart’, warns Lukowiak.The final pair aspects flight: hunting novice gyrfalcons developmental pathways led glasswing butterfly's eponymously transparent wings. Monica Caroline Brighton Oxford, UK, Wingbeat Ltd [jeb238493], edited retired Deputy Andy Biewener, ‘presents very nice application integration flight navigation theory predict attack behaviours’. She adds, effectively combined challenging experiments hypothesis-driven model-based predictions interesting differences behaviours peregrine falcons’. Sanjay Sane, Aaron Pomerantz Berkeley, scales regions butterfly wings thin bristly, contrast flat round opaque sections (jeb237917). They revealed unique coating, inspire next generation anti-reflective materials. fascinating!’, exclaims series approaches, including confocal microscopy, electron microscopy techniques.Considering Franklin ‘It extremely difficult task overall winner articles deserving winners own right, demonstrating wonderful creativity science’. However, after reviewing Hardison's ‘Diet mediates thermal performance traits: marine ectotherms’, awarded Prize. email I saw day had re-read times believe it. surprised, honoured thankful’, Hardison. Senior author equally pleased, just excited lab participated project. It's honour’, working joy: ‘She's bright, driven, hard-working dedicated mentor undergraduate students’. Hardison one join established her UCSB lab. ‘Emily tanks, plumb everything, build respirometers, order equipment. Absolutely every aspect catch opaleye, hold lab, what feed them’, addition, pandemic struck finalising heart rate study; ‘the entire university shut down, abruptly stop everything’, recalls. Despite setback, discovery acclimation responses fish. interaction many applications, ecology, aquaculture conservation’, says. credit co-authors help support. ‘Erika provided enormous amount mentorship throughout learned her’, mentioning co-authors, Krista Kraskura, Jacey Van Wert Tina Nguyen. concludes congratulating Hardison: article’, adding, wish best PhD future research’. Biology shortlistBautista, N. M., Malte, H., Natarajan, C., Wang, T., Storz, J. F. Fago, A. (2021). New hemoglobin. Exp. Biol.224, jeb242615. doi:10.1242/jeb.242615.Brighton, C. Chapman, K. E., Fox, Taylor, G. Attack behaviour naive modelled guidance law falcons, lower gain. jeb238493. doi:10.1242/jeb.238493.Chen, Y.-q., J., Liao, M.-i., Li, X.-x. Dong, Y.-w. Temperature adaptations thermophilic snail malaccana: metabolomic analysis. jeb238659. doi:10.1242/jeb.238659.Crane, R. L., Diaz Reyes, L. Denny, M. W. Bivalves rapidly damaged fatigue bolster strength. jeb242681. doi:10.1242/jeb.242681.Hardison, E. A., K., Wert, Nguyen, T. Eliason, Diet ectotherms. jeb242846. doi:10.1242/jeb.242846.López, V., Bolmaro, Ávalos, Gerschenson, N., Reboreda, Fiorini, Vanina D., Tartalini, Risso, P. Hauber, How puncture- breakage-resistant eggshell? Mechanical analyses avian brood parasites hosts. jeb243016. doi:10.1242/jeb.243016.Malinka, Rojano-Doñate, Madsen, Directional biosonar beams actively discriminate intercept closely spaced targets. jeb242779. doi:10.1242/jeb.242779.Moagi, L, Bourne, R., Cunningham, S. Jansen, Ngcamphalala, Ganswindt, Ridley, Hot associated short-term adrenocortical arid-zone passerine bird. jeb242535. doi:10.1242/jeb.242535.Padda, S., Glass, Stahlschmidt, Z. When it's hot dry: life-history limitation jeb236398. doi:10.1242/jeb.236398.Parlin, Guerra, Dimorphic moth, Hyalophora cecropia, reflect existence two distinct architectural syndromes. jeb239780. doi:10.1242/jeb.239780.Pomerantz, F., Siddique, Cash, I., Kishi, Y., Pinna, Hammar, Gomez, Elias, Patel, H. Developmental, cellular biochemical basis transparency clearwing butterflies. jeb237917. doi:10.1242/jeb.237917.Silva, Palacios-Muñoz, Okray, Z., Adair, Waddell, Douglas, Ewer, The sleep Drosophila. jeb233619. doi:10.1242/jeb.233619.

Язык: Английский

Процитировано

0
Bivalves maintain repair when faced with chronically repeated mechanical stress DOI Open Access
R. L. Crane, Mark W. Denny

Journal of Experimental Biology, Год журнала: 2022, Номер 225(10)

Опубликована: Май 15, 2022

ABSTRACT Even though mollusks' capacity to repair shell damage is usually studied in response a single event, their shells have defend them against predatory and environmental threats throughout potentially multi-decadal life. We measured whether how mollusks respond chronic mechanical stress. Once week for 7 months, we compressed whole live California mussels (Mytilus californianus) 15 cycles at ∼55% of predicted one-time breaking force, treatment known cause fatigue shells. found repaired Shells experimentally stressed were just as strong the end experiment those control that had not been loaded, they more heavily patched internally. Additionally, differed morphology; heavier thicker than but increased less width, resulting flatter, domed shape. Finally, stress came cost, with having higher mortality soft tissue group. Although associated significant mussels' ability maintain ongoing may be vital survival harsh predator-filled environments.

Язык: Английский

Процитировано

0
Miraculous mussels heal in days DOI Open Access
Kathryn Knight

Journal of Experimental Biology, Год журнала: 2021, Номер 224(19)

Опубликована: Окт. 1, 2021

For many of us, breaking a bone is rare and hopefully no more than once in lifetime experience. It's excruciating recovery can take weeks. But the shells mussels (Mytilus californianus) clinging to shoreline are continually at risk harm, battered by waves debris hurled surf. Even when tide out, mussel vulnerable hungry crustaceans taking nip with their powerful claws. ‘The intertidal zone be particularly dangerous place. It harsh environment’, says Rachel Crane from Stanford University, USA. So how much damage do these resilient structures sustain after substantial assault quickly they recover? Crane, along José Diaz Reyes Mark Denny, both same university, headed down seashore below Hopkins Marine Station, USA, find out.Back lab bucket full molluscs, repeatedly compressed between two plates stress them, adjusting level force depending on size. Then, duo checked for testing total bearing could withstand. Sure enough, squashed were significantly weaker that had not been compressed; only withstand forces 54 N less (equivalent weight 5.4 kg) unstressed And opened up looked surface within, sometimes saw networks cracks radiating across dome shell or larger individual cracks. Repeatedly pounding taken toll shells, but well molluscs recover?Allowing 1, 2 4 weeks recuperate, team was astonished see every bit as tough unharmed within week. ‘We amazed we data. We expecting maybe even months repair shells; I never thought response would so fast’, Crane. And, she rechecked later, impressed dealt hardest blows most resilient, coming back stronger. However, effort soft internal part weighing 7% tissue remained unassailed.In addition, scrutinised signs recovery, although some showed evidence regrowth area near surrounding cracks, fissures unhealed, though restored strength. ‘Mussels may have self-healing compensatory mechanism does involve deposition’ compared mollusc's healing rates those other armoured surf residents, streaks ahead, recuperating matter days, whereas snails damage. also suggests mussels’ ability recover rapidly account undisputed success one world's turbulent environments. ‘Molluscs protect themselves this amazing dynamic armour – animals resist repeated insults, respond, strengthen quickly’,

Язык: Английский

Процитировано

0