Bundling up the Role of the Actin Cytoskeleton in Primary Root Growth

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F21%3A00553584" target="_blank" >RIV/61389030:_____/21:00553584 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11310/21:10438252

Result on the web

<a href="http://doi.org/10.3389/fpls.2021.777119" target="_blank" >http://doi.org/10.3389/fpls.2021.777119</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3389/fpls.2021.777119" target="_blank" >10.3389/fpls.2021.777119</a>

Result language

angličtina

Original language name

Bundling up the Role of the Actin Cytoskeleton in Primary Root Growth

Original language description

Primary root growth is required by the plant to anchor in the soil and reach out for nutrients and water, while dealing with obstacles. Efficient root elongation and bending depends upon the coordinated action of environmental sensing, signal transduction, and growth responses. The actin cytoskeleton is a highly plastic network that constitutes a point of integration for environmental stimuli and hormonal pathways. In this review, we present a detailed compilation highlighting the importance of the actin cytoskeleton during primary root growth and we describe how actin-binding proteins, plant hormones, and actin-disrupting drugs affect root growth and root actin. We also discuss the feedback loop between actin and root responses to light and gravity. Actin affects cell division and elongation through the control of its own organization. We remark upon the importance of longitudinally oriented actin bundles as a hallmark of cell elongation as well as the role of the actin cytoskeleton in protein trafficking and vacuolar reshaping during this process. The actin network is shaped by a plethora of actin-binding proteins, however, there is still a large gap in connecting the molecular function of these proteins with their developmental effects. Here, we summarize their function and known effects on primary root growth with a focus on their high level of specialization. Light and gravity are key factors that help us understand root growth directionality. The response of the root to gravity relies on hormonal, particularly auxin, homeostasis, and the actin cytoskeleton. Actin is necessary for the perception of the gravity stimulus via the repositioning of sedimenting statoliths, but it is also involved in mediating the growth response via the trafficking of auxin transporters and cell elongation. Furthermore, auxin and auxin analogs can affect the composition of the actin network, indicating a potential feedback loop. Light, in its turn, affects actin organization and hence, root growth, although its precise role remains largely unknown. Recently, fundamental studies with the latest techniques have given us more in-depth knowledge of the role and organization of actin in the coordination of root growth, however, there remains a lot to discover, especially in how actin organization helps cell shaping, and therefore root growth.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10608 - Biochemistry and molecular biology

Project

<a href="/en/project/GJ19-13375Y" target="_blank" >GJ19-13375Y: The role of actin cytoskeleton in lytic degradation of auxin plasma membrane carriers</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Frontiers in Plant Science

ISSN

1664-462X

e-ISSN

1664-462X

Volume of the periodical

12

Issue of the periodical within the volume

DEC 16

Country of publishing house

CH - SWITZERLAND

Number of pages

16

Pages from-to

777119

UT code for WoS article

000738451100001

EID of the result in the Scopus database

2-s2.0-85122212687