Globoids and Phytase: The Mineral Storage and Release System in Seeds

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Globoids and Phytase : The Mineral Storage and Release System in Seeds. / Madsen, Claus Krogh; Brinch-Pedersen, Henrik.

In: International Journal of Molecular Sciences , Vol. 21, No. 20, 7519, 10.2020.

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Madsen, Claus Krogh ; Brinch-Pedersen, Henrik. / Globoids and Phytase : The Mineral Storage and Release System in Seeds. In: International Journal of Molecular Sciences . 2020 ; Vol. 21, No. 20.

Bibtex

@article{f1f32bca10fe40c3820e135400ffff8f,
title = "Globoids and Phytase: The Mineral Storage and Release System in Seeds",
abstract = "Phytate and phytases in seeds are the subjects of numerous studies, dating back as far as the early 20th century. Most of these studies concern the anti-nutritional properties of phytate, and the prospect of alleviating the effects of phytate with phytase. As reasonable as this may be, it has led to a fragmentation of knowledge, which hampers the appreciation of the physiological system at hand. In this review, we integrate the existing knowledge on the chemistry and biosynthesis of phytate, the globoid cellular structure, and recent advances on plant phytases. We highlight that these components make up a system that serves to store and—in due time—release the seed{\textquoteright}s reserves of the mineral nutrients phosphorous, potassium, magnesium, and others, as well as inositol and protein. The central component of the system, the phytate anion, is inherently rich in phosphorous and inositol. The chemical properties of phytate enable it to sequester additional cationic nutrients. Compartmentalization and membrane transport processes regulate the buildup of phytate and its associated nutrients, resulting in globoid storage structures. We suggest, based on the current evidence, that the degradation of the globoid and the mobilization of the nutrients also depend on membrane transport processes, as well as the enzymatic action of phytase.",
keywords = "phytate, phytase, globoids, nutrient storage, protein storage vacuole",
author = "Madsen, {Claus Krogh} and Henrik Brinch-Pedersen",
year = "2020",
month = oct,
doi = "10.3390/ijms21207519",
language = "English",
volume = "21",
journal = "International Journal of Molecular Sciences (Online)",
issn = "1661-6596",
publisher = "MDPI AG",
number = "20",

}

RIS

TY - JOUR

T1 - Globoids and Phytase

T2 - The Mineral Storage and Release System in Seeds

AU - Madsen, Claus Krogh

AU - Brinch-Pedersen, Henrik

PY - 2020/10

Y1 - 2020/10

N2 - Phytate and phytases in seeds are the subjects of numerous studies, dating back as far as the early 20th century. Most of these studies concern the anti-nutritional properties of phytate, and the prospect of alleviating the effects of phytate with phytase. As reasonable as this may be, it has led to a fragmentation of knowledge, which hampers the appreciation of the physiological system at hand. In this review, we integrate the existing knowledge on the chemistry and biosynthesis of phytate, the globoid cellular structure, and recent advances on plant phytases. We highlight that these components make up a system that serves to store and—in due time—release the seed’s reserves of the mineral nutrients phosphorous, potassium, magnesium, and others, as well as inositol and protein. The central component of the system, the phytate anion, is inherently rich in phosphorous and inositol. The chemical properties of phytate enable it to sequester additional cationic nutrients. Compartmentalization and membrane transport processes regulate the buildup of phytate and its associated nutrients, resulting in globoid storage structures. We suggest, based on the current evidence, that the degradation of the globoid and the mobilization of the nutrients also depend on membrane transport processes, as well as the enzymatic action of phytase.

AB - Phytate and phytases in seeds are the subjects of numerous studies, dating back as far as the early 20th century. Most of these studies concern the anti-nutritional properties of phytate, and the prospect of alleviating the effects of phytate with phytase. As reasonable as this may be, it has led to a fragmentation of knowledge, which hampers the appreciation of the physiological system at hand. In this review, we integrate the existing knowledge on the chemistry and biosynthesis of phytate, the globoid cellular structure, and recent advances on plant phytases. We highlight that these components make up a system that serves to store and—in due time—release the seed’s reserves of the mineral nutrients phosphorous, potassium, magnesium, and others, as well as inositol and protein. The central component of the system, the phytate anion, is inherently rich in phosphorous and inositol. The chemical properties of phytate enable it to sequester additional cationic nutrients. Compartmentalization and membrane transport processes regulate the buildup of phytate and its associated nutrients, resulting in globoid storage structures. We suggest, based on the current evidence, that the degradation of the globoid and the mobilization of the nutrients also depend on membrane transport processes, as well as the enzymatic action of phytase.

KW - phytate

KW - phytase

KW - globoids

KW - nutrient storage

KW - protein storage vacuole

U2 - 10.3390/ijms21207519

DO - 10.3390/ijms21207519

M3 - Journal article

C2 - 33053867

VL - 21

JO - International Journal of Molecular Sciences (Online)

JF - International Journal of Molecular Sciences (Online)

SN - 1661-6596

IS - 20

M1 - 7519

ER -