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Primary utricle structure of six Halimeda species and potential relevance for ocean acidification tolerance by Katherine E. Peach; Marguerite S. Koch; Patricia L. Blackwelder; Debbie Guerrero-Given; Naomi Kamasawa is a Earth and Planetary Sciences article available to read on EtoBox.

What is Primary utricle structure of six Halimeda species and potential relevance for ocean acidification tolerance about?

## Abstract Variations in utricle morphology may be responsible for different tolerances to ocean acidification (OA) within the macroalgal genus __Halimeda__, an important sediment producer on reefs. However, differences in species’ utricle morphology and their relationship to calcification and crystal formation have not been well articulated. In the present study, we characterized the utricle morphologies of six __Halimeda__ species. Primary utricle ultrastructure was quantitatively and qualitatively compared to tissue inorganic content and crystal microstructure. Morphologies differed across species and several morphometric relationships were revealed. Primary utricle size (r^2^=0.70) and diffusion pathway length (r^2^=0.87) had inverse relationships with inorganic content based on regression analyses, and corresponded to crystal microstructure form. Species with large utricles and long diffusion pathways contained more narrow (~0.15 μm) aragonite needles and minimal micro-anhedral crystal formations. In contrast, species with small utricles and short diffusion pathways elucidated aggregates of micro-anhedral crystals and wider aragonite needles (~0.30 μm). Species’ utricle chara

Who reads Primary utricle structure of six Halimeda species and potential relevance for ocean acidification tolerance?

Author

Katherine E. Peach; Marguerite S. Koch; Patricia L. Blackwelder; Debbie Guerrero-Given; Naomi Kamasawa

Publisher

Walter de Gruyter GmbH

Published

2017

Language

EN

Field

Earth and Planetary Sciences (Physical Sciences)