GEO DataSets

(Submitter supplied) Insect elicitors, in particular fatty acid amides like volicitin, have been known to induce defense-related gene expression. Here we investigated transcriptional changes in response to volicitin 60min after treatment locally and in distal parts of the treated leaf.

Organism:

Zea mays

Type:

Expression profiling by array

Platform:

GPL6438

4 Samples

Download data: GPR

(Submitter supplied) Z-3-Hexenol and other green leaf volatiles have been known to induce defense-related gene expression. Here we investigated the early transcriptional changes in response to Z-3-hexenol.

Organism:

Zea mays

Type:

Expression profiling by array

Platform:

GPL6438

6 Samples

Download data: TXT

(Submitter supplied) Plant volatiles can mediate plant-plant communication in the sense that plants attacked by herbivores can signal their unattacked neighbors of danger by emitting HIPVs. We call this the priming effect. Since the plant defense response is a systematic process involving numerous pathways and genes,to characterize the priming process, a time course study using a genome-wide microarray may provide more accurate information about the priming process. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL198

16 Samples

Download data: CEL, CHP

(Submitter supplied) Aerenchyma is continuous gas space between shoot and roots that contributes to the internal aeration in plants. In response to excess water stress and the plant hormone ethylene, maize (Zea mays) forms aerenchyma in root cortical cells by programmed cell death (PCD). The aim of this study was to understand the molecular mechanism of ethylene-induced aerenchyma formation by identifying genes that are up- or down-regulated by ethylene treatment in the maize root cortical cells isolated by laser microdissection.

Organism:

Zea mays

Type:

Expression profiling by array

Platform:

GPL16089

6 Samples

Download data: TXT

(Submitter supplied) Aerenchyma is a specialized tissue consisting of longitudinal gas spaces, which enables internal movement of gases (e.g., O2, CO2, ethylene and methane), in plant roots, petioles and stems. Especially, internal transport of oxygen via aerenchyma from shoots to roots is very important for adaptation or survival of plants under waterlogged condition. To identify aerenchyma formation-associated genes expressed in maize root, we used LM combined with a microarray for monitoring genes expressed in root cortical cells under three conditions: under aerobic condition and under waterlogged condition with and without pretreatment with 1-MCP, an inhibitor of ethylene perception.

Organism:

Zea mays

Type:

Expression profiling by array

Platform:

GPL7444

12 Samples

Download data: TXT

(Submitter supplied) Plants perceive herbivory induced volatiles and respond to them by upregulating their defenses. So far, the organs responsible for volatile perception remain poorly described. Here, we show that responsiveness to the herbivory induced green leaf volatile (Z)-3-hexenyl acetate (HAC) in terms of volatile emission, transcriptional regulation and jasmonate defense hormone activation is largely constrained to younger maize leaves. more...

Organism:

Zea mays

Type:

Expression profiling by high throughput sequencing

Platform:

GPL28862

72 Samples

Download data: TXT

(Submitter supplied) • Herbivore-induced plant volatiles (HIPVs), in addition to attracting natural enemies of herbivores, can serve a signaling function within plants by acting as wound signals that induce or prime defenses. However, particularly in woody plants, which compounds within HIPV blends are capable of acting as signaling molecules are largely unknown. • Leaves of hybrid poplar (Populus deltoides x nigra) saplings were exposed in vivo to naturally wound-emitted concentrations of the green leaf volatile (GLV) cis-3-hexenyl acetate (z3HAC) and then subsequently fed upon by gypsy moth larvae (Lymantria dispar L.). more...

Organism:

Populus x canadensis; Populus tremuloides

Type:

Expression profiling by array

Platform:

GPL6992

8 Samples

Download data: GPR

(Submitter supplied) Idenfication and characterization of oscillating transcripts after elicitation with oral secretions from the sepcialist herbivore, Manduca sexta larvae

Organism:

Nicotiana attenuata

Type:

Expression profiling by array

Platform:

GPL13527

134 Samples

Download data: TXT

(Submitter supplied) Phytophthora cinnamomi is a devastating soil-borne oomycete with a very broad host range however there remains a major gap in the understanding of plant resistance responses to the pathogen, furthermore, necrotrophic plant-pathogen interactions, particularly those of root pathogens, remain poorly understood. Zea mays exhibits non-host resistance to the pathogen and has been well characterised as a model species. more...

Organism:

Zea mays

Type:

Expression profiling by array

Platform:

GPL4032

12 Samples

Download data: CEL

(Submitter supplied) As maize (Zea mays) plants undergo vegetative phase change from juvenile to adult, they both exhibit heteroblasty, an abrupt change in patterns of leaf morphogenesis, and gain the ability to produce flowers. Both processes are under the control of microRNA 156, whose levels decline at the end of the juvenile phase. Gain of ability to flower is conferred by expression of miR156 targets that encode Squamosa Promoter-Binding (SBP) transcription factors, which when derepressed in the adult phase induce the expression of MADS-box transcription factors that promote maturation and flowering. more...

Organism:

Zea mays

Type:

Expression profiling by array

Platform:

GPL21058

13 Samples

Download data: PAIR

(Submitter supplied) Plant damage promotes the interaction of lipoxygenases (LOX) with fatty acids yielding 9-hydroperoxides, 13-hydroperoxides and complex arrays of oxylipins. The action of 13-LOX on linolenic acid enables production of 12-oxo-phytodienoic acid (12-OPDA) and its downstream products, termed jasmonates. As signals, jasmonates have related yet distinct roles in the regulation of plant resistance against insect and pathogen attack. more...

Organism:

Zea mays

Type:

Expression profiling by array

Platform:

GPL4032

6 Samples

Download data: CEL, TXT

(Submitter supplied) Plant cellular damage promotes the interaction of lipoxygenases (LOX) with free fatty acids to yield 9- and 13-hydroperoxides which are further metabolized into diverse oxylipins. The enzymatic action of 13-LOX on linolenic acid enables production of 12-oxo-phytodienoic acid (12-OPDA) and its downstream products, jointly known as jasmonates. As signals, jasmonates have related yet distinct roles in the regulation of plant resistance against insect and pathogen attack. more...

Organism:

Zea mays

Type:

Expression profiling by high throughput sequencing

Platform:

GPL20156

12 Samples

Download data: TXT