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Wageningen Seed Lab
Seed biology: Development, dormancy and germination
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New WSL publication "Gene expression profiling of the green seed problem in Soybean" in BMC Plant Biology

New WSL publication "Gene expression profiling of the green seed problem in Soybean" in BMC Plant Biology | Wageningen Seed Lab | Scoop.it

By Renake N. Teixeira, Wilco Ligterink,  José de B. França-Neto, Henk W.M. Hilhorst and Edvaldo A. A. da Silva

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Recordings of Maria Cecília Dias Costa's PhD defence

Recordings of Maria Cecília Dias Costa's PhD defence | Wageningen Seed Lab | Scoop.it

For those that missed the PhD defence of Maria Cecília Dias Costa, but would still be interested to have a look (or for those who were present, but want to have another look): you can find the recordings of this event via this link.

 

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PhD defence Maria Cecilia Dias Costa: Desiccation tolerance in seeds and plants

PhD defence Maria Cecilia Dias Costa: Desiccation tolerance in seeds and plants | Wageningen Seed Lab | Scoop.it

Today at 13.30 in the Aula in Wageningen Maria Cecilia Dias Costa will defend her PhD thesis. If you cannot come to Wageningen, but still want to see the defence you can have a look at the live-broadcasting via this link: http://wurtv.wur.nl/p2gplayer/Player.aspx?source=LIVE&multimediaServer=http://mediaserver.wur.nl&presentationServer=https://wurtv.wur.nl/presentations/AULATV&publishingpoint=AULATV

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Upcoming WSL PhD defence of Maria Cecilia Dias Costa: Desiccation tolerance in seeds and plants

Upcoming WSL PhD defence of Maria Cecilia Dias Costa: Desiccation tolerance in seeds and plants | Wageningen Seed Lab | Scoop.it

Maria Cecilia will defend her thesis on the 8th of January at 13.30 in Wageningen

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Upcoming WSL PhD defence of Anderson Silva: "Dissecting the seed-to-seedling transition in Arabidopsis thaliana by gene co-expression networks"

Upcoming WSL PhD defence of Anderson Silva: "Dissecting the seed-to-seedling transition in Arabidopsis thaliana by gene co-expression networks" | Wageningen Seed Lab | Scoop.it

Anderson will defend his thesis on the 9th of December at 13.30 in Wageningen

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TEDx talk from our collaborator Jill Farrant: Resurrecting Food Security for Africa |TEDxCapeTown

Most plants are sensitive to even slight water loss for short periods of time. Resurrection plants are extremely unusual in that they can lose 95% of their c...
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Innovation in the Bulb Industy - YouTube

Theorie en praktijk ontmoeten elkaar op een veld met lelies. De Nederlandse bloembollensector is de enige agrarische sector met een eigen hoogleraar. Profess...
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Movie featuring Prof Richard Immink and PhD Natalia Moreno

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Information/PR movie featuring Prof Richard Immink and PhD Natalia Moreno

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New WSL publication: "Expression profiles of genes related to carbohydrate metabolism provide new insights into carbohydrate accumulation in seeds and seedlings of Ricinus communis in response to t...

New WSL publication: "Expression profiles of genes related to carbohydrate metabolism provide new insights into carbohydrate accumulation in seeds and seedlings of Ricinus communis in response to t... | Wageningen Seed Lab | Scoop.it

By Paulo R. Ribeiro,, Wilco Ligterink and Henk W.M. Hilhorst

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New call for ZonMw/NWO Enabling Technologies Hotels projects with possibilities to get funding for (among others) the use of the GERMINATOR

New call for ZonMw/NWO Enabling Technologies Hotels projects with possibilities to get funding for (among others) the use of the GERMINATOR | Wageningen Seed Lab | Scoop.it
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Master Class on Seed Technology in Wageningen from 12 to 15 October 2015

Master Class on Seed Technology in Wageningen from 12 to 15 October 2015 | Wageningen Seed Lab | Scoop.it
The aim of the master class is to offer professional seed technologists the possibility for a further deepening, broadening and actualisation of their knowledge and expertise.
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New WSL publication: Time-series analysis of the transcriptome of the re-establishment of desiccation tolerance by ABA in germinated Arabidopsis thaliana seeds - Genomics Data 5, 154-156

New WSL publication: Time-series analysis of the transcriptome of the re-establishment of desiccation tolerance by ABA in germinated Arabidopsis thaliana seeds - Genomics Data 5, 154-156 | Wageningen Seed Lab | Scoop.it
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New WSL publication: Pheno2Geno - High-throughput generation of genetic markers and maps from molecular phenotypes for crosses between inbred strains

New WSL publication: Pheno2Geno - High-throughput generation of genetic markers and maps from molecular phenotypes for crosses between inbred strains | Wageningen Seed Lab | Scoop.it
Genetic markers and maps are instrumental in quantitative trait locus (QTL) mapping in segregating populations. The resolution of QTL localization depends on the number of informative recombinations in the population and how well they are tagged by markers. Larger populations and denser marker maps are better for detecting and locating QTLs. Marker maps that are initially too sparse can be saturated or derived de novo from high-throughput omics data, (e.g. gene expression, protein or metabolite abundance). If these molecular phenotypes are affected by genetic variation due to a major QTL they will show a clear multimodal distribution. Using this information, phenotypes can be converted into genetic markers.
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New WSL publication: "Key genes involved in desiccation tolerance and dormancy across life forms" in Plant Science

New WSL publication: "Key genes involved in desiccation tolerance and dormancy across life forms" in Plant Science | Wageningen Seed Lab | Scoop.it

By Maria Cecília D. Costa, Jill M. Farrant, Melvin J. Oliver, Wilco Ligterink, Julia Buitink and Henk M.W. Hilhorst

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TED talk from our collaborator Jill Farrant: How we can make crops survive without water - TEDGlobal Geneva

TED talk from our collaborator Jill Farrant: How we can make crops survive without water - TEDGlobal Geneva | Wageningen Seed Lab | Scoop.it
As the world's population grows and the effects of climate change come into sharper relief, we'll have to feed more people using less arable land. Molecular biologist Jill Farrant studies a rare phenomenon that may help: "resurrection plants" -- super-resilient plants that seemingly come back from the dead. Could they hold promise for growing food in our coming hotter, drier world?
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New WSL publication: "Effects of Parental Temperature and Nitrate on Seed Performance are Reflected by Partly Overlapping Genetic and Metabolic Pathways" in Plant and Cell Physiology

New WSL publication: "Effects of Parental Temperature and Nitrate on Seed Performance are Reflected by Partly Overlapping Genetic and Metabolic Pathways" in Plant and Cell Physiology | Wageningen Seed Lab | Scoop.it

By Hanzi He, Leo Willems, Albert Batushansky, Aaron Fait, Johannes Hanson, Harm Nijveen, Henk W. M. Hilhorst and Leónie Bentsink

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New WSL publication: "The Arabidopsis DELAY OF GERMINATION 1 gene affects ABSCISIC ACID INSENSITIVE 5 (ABI5) expression and genetically interacts with ABI3 during Arabidopsis seed development" in T...

New WSL publication: "The Arabidopsis DELAY OF GERMINATION 1 gene affects ABSCISIC ACID INSENSITIVE 5 (ABI5) expression and genetically interacts with ABI3 during Arabidopsis seed development" in T... | Wageningen Seed Lab | Scoop.it

In Plant Journal by
Bas J.W. Dekkers, Hanzi He, Johannes Hanson, Leo A.J. Willems, Diaan C.L. Jamar, Gwendal Cueff, Loïc Rajjou, Henk W.M. Hilhorst and Leónie Bentsink

 

 

 

 

 

 

 

 

 

 

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Upcoming WSL PhD defence of Deborah de Souza Vidigal: Adaptation and acclimation of seed performance

Upcoming WSL PhD defence of Deborah de Souza Vidigal: Adaptation and acclimation of seed performance | Wageningen Seed Lab | Scoop.it

Deborah will defend her thesis on the 14th of December at 8.30 in Wageningen

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Homepage of Thesis of Paulo Roberto Ribeiro

Homepage of Thesis of Paulo Roberto Ribeiro | Wageningen Seed Lab | Scoop.it

For downloading the thesis and a link to the recordings of Paulo's thesis defence

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Upcoming WSL PhD defence of Paulo Ribeiro de Jesus: Biochemical, physiological and molecular responses of Ricinus communis seeds and seedlings to different temperatures: a multi-omics approach

Upcoming WSL PhD defence of Paulo Ribeiro de Jesus: Biochemical, physiological and molecular responses of Ricinus communis seeds and seedlings to different temperatures: a multi-omics approach | Wageningen Seed Lab | Scoop.it

Paulo will defend his thesis on the 16th of October at 8.30 in Wageningen

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New WSL publication: "Effect of temperature on biomass allocation in seedlings of two contrasting genotypes of the oilseed crop Ricinus communis" in Journal of Plant Physiology

By Paulo R. Ribeiro, Rafael F. Zanotti, Carole Deflers, Luzimar Gonzaga Fernandez, Renato Delmondez de Castro, Wilco Ligterink and Henk W.M. Hilhorst

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New WSL publication: A role for seed storage proteins in Arabidopsis seed longevity

New WSL publication: A role for seed storage proteins in Arabidopsis seed longevity | Wageningen Seed Lab | Scoop.it

In Journal of Experimental Botany by Thu-Phuong Nguyen, Gwendal Gueff, Dwayne D Hegedus, Loïc Rajjou and Leónie Bentsink

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Workshop on high throughput seed germination phenotyping and the application for genetic studies

Workshop on high throughput seed germination phenotyping and the application for genetic studies | Wageningen Seed Lab | Scoop.it
CIGRAS - Centro para Investigaciones en Granos y Semillas de la Universidad de Costa Rica
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New WSL publication: Expression studies in the embryo and in the micropylar endosperm of germinating coffee (Coffea arabica cv. Rubi) seeds - Plant Growth Regulation

New WSL publication: Expression studies in the embryo and in the micropylar endosperm of germinating coffee (Coffea arabica cv. Rubi) seeds - Plant Growth Regulation | Wageningen Seed Lab | Scoop.it
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New WSL publication: "A gene co-expression network predicts functional genes controlling the re-establishment of desiccation tolerance in germinated Arabidopsis thaliana seeds" in Planta

New WSL publication: "A gene co-expression network predicts functional genes controlling the re-establishment of desiccation tolerance in germinated Arabidopsis thaliana seeds" in Planta | Wageningen Seed Lab | Scoop.it

Main conclusion:

 

During re-establishment of desiccation tolerance (DT), early events promote initial protection and growth arrest, while late events promote stress adaptation and contribute to survival in the dry state.

 

Mature seeds of Arabidopsis thaliana are desiccation tolerant, but they lose desiccation tolerance (DT) while progressing to germination. Yet, there is a small developmental window during which DT can be rescued by treatment with abscisic acid (ABA). To gain temporal resolution and identify relevant genes in this process, data from a time series of microarrays were used to build a gene co-expression network. The network has two regions, namely early response (ER) and late response (LR). Genes in the ER region are related to biological processes, such as dormancy, acquisition of DT and drought, amplification of signals, growth arrest and induction of protection mechanisms (such as LEA proteins). Genes in the LR region lead to inhibition of photosynthesis and primary metabolism, promote adaptation to stress conditions and contribute to seed longevity. Phenotyping of 12 hubs in relation to re-establishment of DT with T-DNA insertion lines indicated a significant increase in the ability to re-establish DT compared with the wild-type in the lines cbsx4, at3g53040 and at4g25580, suggesting the operation of redundant and compensatory mechanisms. Moreover, we show that re-establishment of DT by polyethylene glycol and ABA occurs through partially overlapping mechanisms. Our data confirm that co-expression network analysis is a valid approach to examine data from time series of transcriptome analysis, as it provides promising insights into biologically relevant relations that help to generate new information about the roles of certain genes for DT.

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New WSL publication: Metabolite profiling of the oilseed crop Ricinus communis during early seed imbibition reveals a specific metabolic signature in response to temperature

New WSL publication: Metabolite profiling of the oilseed crop Ricinus communis during early seed imbibition reveals a specific metabolic signature in response to temperature | Wageningen Seed Lab | Scoop.it
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