Extracellular and intracellular digestion in the bivalves studied by magnetic resonance imaging with a contrast reagent.

IF 2.8 2区 生物学 Q2 BIOLOGY Journal of Experimental Biology Pub Date : 2025-01-27 DOI:10.1242/jeb.249932
Eriko Seo, Yoshiteru Seo
{"title":"Extracellular and intracellular digestion in the bivalves studied by magnetic resonance imaging with a contrast reagent.","authors":"Eriko Seo, Yoshiteru Seo","doi":"10.1242/jeb.249932","DOIUrl":null,"url":null,"abstract":"<p><p>We investigated the extracellular and intracellular digestion of bivalves employing magnetic resonance imaging (MRI). Ruditapes philippinarum clams and Mytilus galloprovincialis mussels were incubated in seawater containing a contrast reagent (GdDTPA) at 20°C. The digestive systems, from the esophagus to the rectum, were visualized at a high signal intensity by the T1-weighted MRI. The crystalline style of the clam was also identified, which turned counterclockwise when viewed from a ventral-posterior position at a rate of 16 rpm. Determined using the T1 relaxation rate, the uptake and excretion rates of the GdDTPA in the mussel's digestive glands were 2.9 and 0.25 d-1, respectively, indicating that the intracellular digestion in the gland acinar cells is slower than the extracellular digestion. These results demonstrate that MRI with contrast reagents is useful to study the activity of digestive system in the bivalves, and this technique can likely be applied to the study of other invertebrates.</p>","PeriodicalId":15786,"journal":{"name":"Journal of Experimental Biology","volume":" ","pages":""},"PeriodicalIF":2.8000,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Experimental Biology","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1242/jeb.249932","RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"BIOLOGY","Score":null,"Total":0}
引用次数: 0

Abstract

We investigated the extracellular and intracellular digestion of bivalves employing magnetic resonance imaging (MRI). Ruditapes philippinarum clams and Mytilus galloprovincialis mussels were incubated in seawater containing a contrast reagent (GdDTPA) at 20°C. The digestive systems, from the esophagus to the rectum, were visualized at a high signal intensity by the T1-weighted MRI. The crystalline style of the clam was also identified, which turned counterclockwise when viewed from a ventral-posterior position at a rate of 16 rpm. Determined using the T1 relaxation rate, the uptake and excretion rates of the GdDTPA in the mussel's digestive glands were 2.9 and 0.25 d-1, respectively, indicating that the intracellular digestion in the gland acinar cells is slower than the extracellular digestion. These results demonstrate that MRI with contrast reagents is useful to study the activity of digestive system in the bivalves, and this technique can likely be applied to the study of other invertebrates.

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
求助全文
约1分钟内获得全文 去求助
来源期刊
CiteScore
5.50
自引率
10.70%
发文量
494
审稿时长
1 months
期刊介绍: Journal of Experimental Biology is the leading primary research journal in comparative physiology and publishes papers on the form and function of living organisms at all levels of biological organisation, from the molecular and subcellular to the integrated whole animal.
期刊最新文献
Science under siege: protecting scientific progress in turbulent times. Freeze-tolerant crickets fortify their actin cytoskeleton in fat body tissue. Using the axial skeleton as armor: Mechanical behavior of sea turtle carapaces throughout ontogeny. Underwater paddling kinematics and hydrodynamics in a surface swimming duck versus a diving duck. Breaking family bonds: pair disruption alters female adolescent spatial neophobia but not other personality traits and corticosterone stress response in zebra finches (Taeniopygia guttata).
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1