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Populus stress response: nitrogen limitation, leaf wounding, and methyl jasmonate feeding of cell culture

ABSTRACT: This SuperSeries is composed of the SubSeries listed below.

ORGANISM(S): Populus sp. Populus tremuloides Populus fremontii x Populus angustifolia

PROVIDER: GSE16786 | GEO | 2009/12/01

SECONDARY ACCESSION(S): PRJNA117541

REPOSITORIES: GEO

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Transcription profiling of Populus stress response: nitrogen limitation, leaf wounding, and methyl jasmonate feeding of cell culture

Project description:This SuperSeries is composed of the following subset Series:; GSE16773: Gene expression response of Populus tremuloides cell suspension cultures to methyl jasmonate feeding; GSE16783: Wound-induced gene expression changes in Populus: 1 week; GSE16785: Wound-induced gene expression changes in Populus: 90 hours; GSE14893: Comparative transcriptomics analysis of Populus leaves under nitrogen limitation: clone 3200; GSE14515: Comparative transcriptomics analysis of Populus leaves under nitrogen limitation: clone 1979 Experiment Overall Design: Refer to individual Series

2009-12-14 | E-GEOD-16786 | biostudies-arrayexpress

Gene expression response of Populus tremuloides cell suspension cultures to methyl jasmonate feeding

Project description:Gene expression response of Populus cell cultures subjected to methyl jasmonate feeding was analyzed using the Affymetrix poplar genome microarrays. Keywords: Stress response

2009-12-01 | GSE16773 | GEO

Transcription profiling of Populus tremuloides cell suspension cultures to methyl jasmonate feeding

Project description:Gene expression response of Populus cell cultures subjected to methyl jasmonate feeding was analyzed using the Affymetrix poplar genome microarrays. Experiment Overall Design: Populus tremuloides suspension cells wereÂ treated with methyl jasmonate (MJ) in DMSO orÂ with DMSO alone (C).Â Cells were harvested after 48 hours.Â Two biological replicates were obtained for each condition.

2009-12-14 | E-GEOD-16773 | biostudies-arrayexpress

Comparative transcriptomics analysis of Populus leaves under nitrogen limitation

Project description:This SuperSeries is composed of the SubSeries listed below.

2009-02-19 | GSE14894 | GEO

Transcription profiling of Populus leaves under nitrogen limitation

Project description:Gene expression response of Populus plants subjected to hydroponic nitrogen manipulation was analyzed using the Affymetrix poplar genome microarrays. Experiment Overall Design: Populus fremontii x angustifolia genotypes were grown hydroponically with either 5 mM (N+) or 0.125 mM (N-) nitrogen. Young and mature leaves at Leaf Plastchron Index (LPI) 2 and 5, respectively, were sampled 4 weeks after the start of low N feeding. Two biological replicates were obtained for each condition.

2009-02-08 | E-GEOD-14515 | biostudies-arrayexpress

Transcription profiling of Populus leaves under nitrogen limitation

Project description:This SuperSeries is composed of the following subset Series:; GSE14515: Comparative transcriptomics analysis of Populus leaves under nitrogen limitation: clone 1979; GSE14893: Comparative transcriptomics analysis of Populus leaves under nitrogen limitation: clone 3200 Experiment Overall Design: Refer to individual Series

2009-03-01 | E-GEOD-14894 | biostudies-arrayexpress

Comparative transcriptomics analysis of Populus leaves under nitrogen limitation: clone 1979

Project description:Gene expression response of Populus plants subjected to hydroponic nitrogen manipulation was analyzed using the Affymetrix poplar genome microarrays. Keywords: stress response

2010-01-04 | GSE14515 | GEO

Comparative transcriptomics analysis of Populus leaves under nitrogen limitation: clone 3200

Project description:Gene expression response of Populus plants subjected to hydroponic nitrogen manipulation was analyzed using the Affymetrix poplar genome microarrays. Keywords: stress response

2009-02-19 | GSE14893 | GEO

Response of aspen cell cultures to combinatorial feeding of methyl jasmonate and AOPP.

Project description:To better understand the role of phenylpropanoid pathway perturbation in plant metabolism, Populus tremuloides cell cultures previously established from leaf mesophyll tissue were fed with methyl jasmonate, alpha-aminooxy-beta-phenylpropionic acid (AOPP), or both approximately 5 days after transfer to fresh medium. Methyl jasmonate is an elicitor that activates a suite of defense responses including phenylpropanoid metabolism. In contrast, AOPP acts as an inhibitor of phenylalanine ammonia lyase (PAL). Samples were harvested 48 hrs after initiation of the experiment. Total RNA was extracted and gene expression measured using Affymetrix poplar genome microarrays.

2022-05-06 | GSE154224 | GEO

Response of sunflower (Helianthus annuus L.) leaf surface defenses to exogenous methyl jasmonate.

Project description:Helianthus annuus, the common sunflower, produces a complex array of secondary compounds that are secreted into glandular trichomes, specialized structures found on leaf surfaces and anther appendages of flowers. The primary components of these trichome secretions are sesquiterpene lactones (STL), a diverse class of compounds produced abundantly by the plant family Compositae and believed to contribute to plant defense against herbivory. We treated wild and cultivated H. annuus accessions with exogenous methyl jasmonate, a plant hormone that mediates plant defense against insect herbivores and certain classes of fungal pathogens. The wild sunflower produced a higher density of glandular trichomes on its leaves than the cultivar. Comparison of the profiles of glandular trichome extracts obtained by liquid chromatography-mass spectroscopy (LC-MS) showed that wild and cultivated H. annuus were qualitatively similar in surface chemistry, although differing in the relative size and proportion of various compounds detected. Despite observing consistent transcriptional responses to methyl jasmonate treatment, we detected no significant effect on glandular trichome density or LC-MS profile in cultivated or wild sunflower, with wild sunflower exhibiting a declining trend in overall STL production and foliar glandular trichome density of jasmonate-treated plants. These results suggest that glandular trichomes and associated compounds may act as constitutive defenses or require greater levels of stimulus for induction than the observed transcriptional responses to exogenous jasmonate. Reduced defense investment in domesticated lines is consistent with predicted tradeoffs caused by selection for increased yield; future research will focus on the development of genetic resources to explicitly test the ecological roles of glandular trichomes and associated effects on plant growth and fitness.

| S-EPMC3356381 | biostudies-literature

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