Tissue specific specialization of the nanoscale architecture of Arabidopsis.
The Arabidopsis stem is composed of five tissues - the pith, xylem, phloem, cortex and epidermis - each of which fulfills specific roles in support of the growth and survival of the organism. The lignocellulosic scaffolding of cell walls is specialized to provide optimal support for the diverse functional roles of these layers, but little is known about this specialization. X-ray scattering can be used to study this tissue-specific diversity because the cellulosic components of the cell walls give rise to recognizable scattering features interpretable in terms of the underlying molecular architecture and distinct from the largely unoriented scatter from other constituents. Here we use scanning X-ray microdiffraction from thin sections to characterize the diversity of molecular architecture in the Arabidopsis stem and correlate that diversity to the functional roles the distinct tissues of the stem play in the growth and survival of the organism.
Department of Electrical and Computer Engineering, Northeastern University, United States. Electronic address: liu.jil@husky.neu.edu.
Jiliang
J
Liu
Hideyo
H
Inouye
Nagarajan
N
Venugopalan
Robert F
RF
Fischetti
S Charlotte
SC
Gleber
Stefan
S
Vogt
Joanne C
JC
Cusumano
Jeong Im
JI
Kim
Clint
C
Chapple
Lee
L
Makowski
D017360:Arabidopsis / Q000378:metabolism / Q000648:ultrastructure*; D002482:Cellulose / Q000378:metabolism / Q000648:ultrastructure; D004577:Electron Probe Microanalysis; D020894:Microfibrils / Q000648:ultrastructure; D008903:Minerals / Q000378:metabolism; D009928:Organ Specificity; D019441:Plant Epidermis / Q000648:ultrastructure; D018547:Plant Stems / Q000648:ultrastructure*; D014961:X-Ray Diffraction
D008903:Minerals; D002482:Cellulose
Arabidopsis; Cellulose structure; Scanning X-ray microdiffraction; X-ray fluorescence microscopy