laser/arabidopsis

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Metabolic profiling of laser microdissected vascular bundles of Arabidopsis thaliana.

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BACKGROUND Laser microdissection is a useful tool for collecting tissue-specific samples or even single cells from animal and plant tissue sections. This technique has been successfully employed to study cell type-specific expression at the RNA, and more recently also at the protein level. However,

Laser capture microdissection for the analysis of gene expression during embryogenesis of Arabidopsis.

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It is during embryogenesis that the body plan of the developing plant is established. Analysis of gene expression during embryogenesis has been limited due to the technical difficulty of accessing the developing embryo. Here we demonstrate that laser capture microdissection can be applied to the

Multiphoton confocal microscopy using a femtosecond Cr:forsterite laser.

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With its output wavelength covering the infrared penetrating window of most biological tissues at 1,200-1,250 nm, the femtosecond Cr:forsterite laser shows high potential to serve as an excellent excitation source for the multiphoton fluorescence microscope. Its high output power, short optical

Effects of locally targeted heavy-ion and laser microbeam on root hydrotropism in Arabidopsis thaliana.

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Classical studies on root hydrotropism have hypothesized the importance of columella cells as well as the de novo gene expression, such as auxin-inducible gene, at the elongation zone in hydrotropism; however, there has been no confirmation that columella cells or auxin-mediated signaling in the

Imaging early stages of the female reproductive structure of Arabidopsis by confocal laser scanning microscopy.

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BACKGROUND The gynoecium is the female reproductive structure and probably the most complex plant structure. During its development, different internal tissues and structures are formed. Insights in gene expression or hormone localization patterns are key to understanding gynoecium development from

Novel tissue preparation method and cell-specific marker for laser microdissection of Arabidopsis mature leaf.

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Laser microdissection (LMD) is a powerful tool to isolate pure cell populations from heterogeneous tissues. This system has been successfully used for animal research; however, the reports of its application to plant tissues remain limited. One of the challenges of LMD for plant material is the

Simple preparation of plant epidermal tissue for laser microdissection and downstream quantitative proteome and carbohydrate analysis.

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The outwardly directed cell wall and associated plasma membrane of epidermal cells represent the first layers of plant defense against intruding pathogens. Cell wall modifications and the formation of defense structures at sites of attempted pathogen penetration are decisive for plant defense. A

Analysis of heat-shock transcription factor-DNA binding in Arabidopsis suspension cultures by UV laser crosslinking.

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Crosslinking techniques are important in examining protein-DNA interactions in living cells. Formaldehyde and UV light emitted by conventional lamps are the most commonly used crosslinking agents. The crosslinking step is followed by immunoprecipitation of specific protein-DNA adducts, and by

Determination of single-cell gene expression in Arabidopsis by capillary electrophoresis with laser induced fluorescence detection.

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We report a new method for the measurement of gene expression in single cells of Arabidopsis using capillary electrophoresis with laser-induced fluorescence (CE-LIF) detection. Initially, the quantitative analysis of APETALA2 (AP2) and LEAFY (LFY) was performed by CE-LIF method. The detection limits

Laser microdissection of Arabidopsis cells at the powdery mildew infection site reveals site-specific processes and regulators.

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To elucidate host processes and components required for the sustained growth and reproduction of the obligate biotrophic fungus Golovinomyces orontii on Arabidopsis thaliana, laser microdissection was used to isolate cells at the site of infection at 5 days postinfection for downstream global

Endoplasmic Reticulum Body-Related Gene Expression in Different Root Zones of Arabidopsis Isolated by Laser-Assisted Microdissection.

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Endoplasmic reticulum (ER) bodies are important organelles for root defense. However, little is known regarding the genetic control of their formation in root tissues. In the present study, (L.) Heynh. roots were dissected using laser-assisted microdissection (LAM) with minimal sample preparation

Direct measurement of glutathione in epidermal cells of intact Arabidopsis roots by two-photon laser scanning microscopy.

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Two-photon laser scanning microscopy (TPLSM) was used to directly measure glutathione (GSH) as its fluorescent glutathione S-bimane conjugate (GSB) in developing root hair cells (trichoblasts) and non-root hair cells (atrichoblasts) of intact Arabidopsis roots. In comparison to confocal microscopy,

Protein profiling of single epidermal cell types from Arabidopsis thaliana using surface-enhanced laser desorption and ionization technology.

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Here, we describe a novel approach for investigating differential protein expression within three epidermal cell types. In particular, 3000 single pavement, basal, and trichome cells from leaves of Arabidopsis thaliana were harvested by glass micro-capillaries. Subsequently, these single cell

An improved procedure for isolation of high-quality RNA from nematode-infected Arabidopsis roots through laser capture microdissection.

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BACKGROUND Cyst nematodes are biotrophs that form specialized feeding structures in the roots of host plants, which consist of a syncytial fusion of hypertrophied cells. The formation of syncytium is accompanied by profound transcriptional changes and active metabolism in infected tissues. The

Quantification of plant surface metabolites by matrix-assisted laser desorption-ionization mass spectrometry imaging: glucosinolates on Arabidopsis thaliana leaves.

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The localization of metabolites on plant surfaces has been problematic because of the limitations of current methodologies. Attempts to localize glucosinolates, the sulfur-rich defense compounds of the order Brassicales, on leaf surfaces have given many contradictory results depending on the method

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