Thin‐film iridescence in the eggshell of a stick insect (Myronides glaucus) DOI
Gerben Debruyn, Thies H. Büscher, Michaël P. J. Nicolaï

и другие.

Physiological Entomology, Год журнала: 2024, Номер unknown

Опубликована: Окт. 19, 2024

Abstract Colours in nature can be pigmentary, structural or a combination of both. The prevalence, function and nanostructural origin coloration eggs is largely unknown. Stick leaf insect display wide variety colours, most which are produced by pigments. Myronides glaucus (Phasmida: Lonchodidae; Hennemann, 2021), however, show clear purple to green iridescence. Here, we use micro‐spectrophotometry, Fourier‐transform infrared reflectance, transmission‐ scanning electron microscopy, atomic force finite‐difference time‐domain optical simulations experimental approaches elucidate the mechanism for iridescence M. eggshells, together reveal that caused thin‐film interference 200‐ 450‐nm‐thick outermost layer. These results highlight diversity phasmid need study different mechanisms functions coloration.

Язык: Английский

Deletion of the moe A gene in Flavobacterium IR1 drives structural color shift from green to blue and alters polysaccharide metabolism DOI Creative Commons
Álvaro Escobar Doncel, Constantinos Patinios, Alexandre Campos

и другие.

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2025, Номер unknown

Опубликована: Янв. 15, 2025

ABSTRACT Structural colors (SC), generated by light interacting with nanostructured materials, is responsible for the brightest and most vivid coloration in nature. Despite being widespread within tree of life, there little knowledge genes involved. Partial exceptions are some Flavobacteriia which involved a number pathways, including gliding motility polysaccharide metabolism, have been linked to SC. A previous genomic analysis SC non-SC bacteria suggested that pterin pathway organization form Thus here, we focus on moe molybdopterin molybdenum transferase. When this gene was deleted from Flavobacterium IR1, knock-out mutant showed strong blue shift colony, different green wild-type. The particularly when grown kappa-carrageenan upregulated starch degradation. To further analyze molecular changes, proteomic performed, showing upregulation various utilization loci, supported link between metabolism Overall, demonstrated single-gene mutations could change optical properties bacterial SC, unprecedented compared multicellular organisms where structural color result several can not yet be addressed genetically.

Язык: Английский

Процитировано

0
Deletion of the moeA gene in Flavobacterium IR1 drives structural color shift from green to blue and alters polysaccharide metabolism DOI Open Access
Álvaro Escobar Doncel, Constantinos Patinios, Alexandre Campos

и другие.

Опубликована: Фев. 28, 2025

Structural colors (SC), generated by light interacting with nanostructured materials, is responsible for the brightest and most vivid coloration in nature. Despite being widespread within tree of life, there little knowledge genes involved. Partial exceptions are some Flavobacteriia which involved a number pathways, including gliding motility polysaccharide metabolism, have been linked to SC. A previous genomic analysis SC non-SC bacteria suggested that pterin pathway organization form Thus here, we focus on moe molybdopterin molybdenum transferase. When this gene was deleted from Flavobacterium IR1, knock-out mutant showed strong blue shift colony, different green wild-type. The particularly when grown kappa-carrageenan upregulated starch degradation. To further analyze molecular changes, proteomic performed, showing upregulation various utilization loci, supported link between metabolism Overall, demonstrated single-gene mutations could change optical properties bacterial SC, unprecedented compared multicellular organisms where structural color result several can not yet be addressed genetically.

Язык: Английский

Процитировано

0
Deletion of the moeA gene in Flavobacterium IR1 drives structural color shift from green to blue and alters polysaccharide metabolism DOI Open Access
Álvaro Escobar Doncel, Constantinos Patinios, Alexandre Campos

и другие.

Опубликована: Фев. 28, 2025

Structural colors (SC), generated by light interacting with nanostructured materials, is responsible for the brightest and most vivid coloration in nature. Despite being widespread within tree of life, there little knowledge genes involved. Partial exceptions are some Flavobacteriia which involved a number pathways, including gliding motility polysaccharide metabolism, have been linked to SC. A previous genomic analysis SC non-SC bacteria suggested that pterin pathway organization form Thus here, we focus on moe molybdopterin molybdenum transferase. When this gene was deleted from Flavobacterium IR1, knock-out mutant showed strong blue shift colony, different green wild-type. The particularly when grown kappa-carrageenan upregulated starch degradation. To further analyze molecular changes, proteomic performed, showing upregulation various utilization loci, supported link between metabolism Overall, demonstrated single-gene mutations could change optical properties bacterial SC, unprecedented compared multicellular organisms where structural color result several can not yet be addressed genetically.

Язык: Английский

Процитировано

0
Thin‐film iridescence in the eggshell of a stick insect (Myronides glaucus) DOI
Gerben Debruyn, Thies H. Büscher, Michaël P. J. Nicolaï

и другие.

Physiological Entomology, Год журнала: 2024, Номер unknown

Опубликована: Окт. 19, 2024

Abstract Colours in nature can be pigmentary, structural or a combination of both. The prevalence, function and nanostructural origin coloration eggs is largely unknown. Stick leaf insect display wide variety colours, most which are produced by pigments. Myronides glaucus (Phasmida: Lonchodidae; Hennemann, 2021), however, show clear purple to green iridescence. Here, we use micro‐spectrophotometry, Fourier‐transform infrared reflectance, transmission‐ scanning electron microscopy, atomic force finite‐difference time‐domain optical simulations experimental approaches elucidate the mechanism for iridescence M. eggshells, together reveal that caused thin‐film interference 200‐ 450‐nm‐thick outermost layer. These results highlight diversity phasmid need study different mechanisms functions coloration.

Язык: Английский

Процитировано

2