…
comment: The repository administrator has not yet configured an RDF license.
primary topic: Opposite polarity programs regulate asymmetric subsidiary cell divisions in grasses

Opposite polarity programs regulate asymmetric subsidiary cell divisions in grasses
type: Article
abstract: Stomata, breathing pores located on leaf epidermal made up of paired guard cells surrounding a central pore, are identified in most aerial tissues of plants. They can regulate the entry of photosynthetic CO2 and loss of water vapor. Grasses show particularly intriguing differences in stomatal development programs compared to the dicots in multiple ways. A four-celled stomatal complex presents a unique morphology in grasses termed graminoid, a pair of center dumbbell-shaped guard cells (GCs) recruiting specialized support cells called subsidiary cells (SCs), which develop in parallel rows with specific cell identity. These SCs serve as supporters of GCs in the molecular and mechanical perspectives, to facilitate stomatal movement in response to environmental signals. Production of SCs involves subsidiary mother cells (SMCs) establishment, polarization, and SCs division. The molecular genetic regulation of stomatal development process has been extensively studied in the dicot Arabidopsis thaliana. Yet, this process in grasses still required more exploration, especially the formation of SCs. In my thesis work, I have examined the comparative transcriptomics (wild-type (WT) vs. mutant (bdmute)), focusing mainly on novel genes involved in SC divisions. My studies are performed using the forage grass Brachypodium distachyon, a recently developed, genetically tractable model species related to wheat. First, I describe mutations in the candidate gene BdPOLAR from transcriptomics, and BdPAN1, whose known orthologue was described as a polarity regulator during SC formation in maize. Although both mutants display SC defects, quantification analysis suggests they work together to regulate SC divisions. Subsequently, I identify that BdPOLAR localizes in the SMCs periphery while mainly being absent at the sites of guard mother cells (GMCs), which is a novel, distal polarity domain, and BdPAN1 polarized at the GMC/SMC interface; thus, two polarity proteins build up an opposing, al…
date: 2022
author list: authors
type: EPrint
type: DoctoralThesisEPrint
is part of: repository
has document: Opposite polarity programs regulate asymmetric subsidiary cell divisions in grasses (PDF)
has document: Opposite polarity programs regulate asymmetric subsidiary cell divisions in grasses (Other)
subject: 570 Biowissenschaften, Biologie

Opposite polarity programs regulate asymmetric subsidiary cell divisions in grasses (PDF)
type: Document
has file: Thesis-Dan.pdf
has part: Thesis-Dan.pdf

Dan Zhang
type: Person
given name: Dan
family name: Zhang

Opposite polarity programs regulate asymmetric subsidiary cell divisions in grasses (Other)
type: Document
is version of: Opposite polarity programs regulate asymmetric subsidiary cell divisions in grasses (PDF)
is volatile version of: Opposite polarity programs regulate asymmetric subsidiary cell divisions in grasses (PDF)
islightbox thumbnail version of: Opposite polarity programs regulate asymmetric subsidiary cell divisions in grasses (PDF)
has file: lightbox.jpg
has part: lightbox.jpg

Opposite polarity programs regulate asymmetric subsidiary cell divisions in grasses (Other)
type: Document
is version of: Opposite polarity programs regulate asymmetric subsidiary cell divisions in grasses (PDF)
is volatile version of: Opposite polarity programs regulate asymmetric subsidiary cell divisions in grasses (PDF)
ispreview thumbnail version of: Opposite polarity programs regulate asymmetric subsidiary cell divisions in grasses (PDF)
has file: preview.jpg
has part: preview.jpg

Opposite polarity programs regulate asymmetric subsidiary cell divisions in grasses (Other)
type: Document
is version of: Opposite polarity programs regulate asymmetric subsidiary cell divisions in grasses (PDF)
is volatile version of: Opposite polarity programs regulate asymmetric subsidiary cell divisions in grasses (PDF)
ismedium thumbnail version of: Opposite polarity programs regulate asymmetric subsidiary cell divisions in grasses (PDF)
has file: medium.jpg
has part: medium.jpg

Opposite polarity programs regulate asymmetric subsidiary cell divisions in grasses (Other)
type: Document
is version of: Opposite polarity programs regulate asymmetric subsidiary cell divisions in grasses (PDF)
is volatile version of: Opposite polarity programs regulate asymmetric subsidiary cell divisions in grasses (PDF)
issmall thumbnail version of: Opposite polarity programs regulate asymmetric subsidiary cell divisions in grasses (PDF)
has file: small.jpg
has part: small.jpg

Opposite polarity programs regulate asymmetric subsidiary cell divisions in grasses (Other)
type: Document
is version of: Opposite polarity programs regulate asymmetric subsidiary cell divisions in grasses (PDF)
is volatile version of: Opposite polarity programs regulate asymmetric subsidiary cell divisions in grasses (PDF)
is index codes version of: Opposite polarity programs regulate asymmetric subsidiary cell divisions in grasses (PDF)
has file: indexcodes.txt
has part: indexcodes.txt

HTML Summary of #31916 Opposite polarity programs regulate asymmetric subsidiary cell divisions in grasses
format: text/html
primary topic: Opposite polarity programs regulate asymmetric subsidiary cell divisions in grasses

570 Biowissenschaften, Biologie
type: Concept
preferred label: 570 Life sciences @en