Wageningen Seed Lab
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Wageningen Seed Lab
Seed biology: Development, dormancy and germination
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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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Early Career Research Fellowship : Job Vacancies At Kew

You will be an outstanding early career scientist with a PhD in a relevant subject area (awarded within the past eight years) and, ideally, some postdoctoral experience. You will have a proven aptitude for delivering excellent science publications and demonstrated potential to raise science income. You will be an outstanding and enthusiastic communicator who is ready to engage with students, peers and the general public. 

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Course on Seed Biology, Production and Quality at UC Davis

Course on Seed Biology, Production and Quality at UC Davis | Wageningen Seed Lab | Scoop.it

Delivering improved varieties and crop protection through high quality seed is a vital component of modern agricultural production systems. It is critical that seed producers have an understanding of the biological factors that contribute to the development and maintenance of seed health, vigor and viability, and how those qualities are measured. This course presents the scientific background for production, handling, storage and quality control procedures in the seed industry. It updates participants on new information in these topics, including seed pathology and seed enhancement. The course targets professionals in the seed industry, new employees, consultants, and seed producers to extend and update their knowledge.

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The Seed Biology Summer School, June 28th - July 3rd 2015, Paris, France

The Seed Biology Summer School, June 28th - July 3rd 2015, Paris, France | Wageningen Seed Lab | Scoop.it
A real opportunity to meet top researchers for international PhD students and young post-docs.

Via Loïc Lepiniec
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Interesting workshop: ISSS Workshop on Seed Longevity 2015

Interesting workshop: ISSS Workshop on Seed Longevity 2015 | Wageningen Seed Lab | Scoop.it

In 2015 the Seed Longevity Workshop of the International Society for Seed Science (ISSS) will take place in Wernigerode, Germany.

The topic of the conference is:

Seeds for future generations - Determinants of longevity

The workshop will bring together scientists involved in seed science and seed banking.

Session I: Seed banking - state of the artSession II: Role of pre- and post-harvest environmental factors on seed longevitySession III: Genetics of inter- and intra-specific variation of seed survivalSession IV: Physiology and biochemistry behind seed ageing - deleterious effects vs. repair mechanisms
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Hotels - Dutch Techcentre for Life Sciences

Hotels - Dutch Techcentre for Life Sciences | Wageningen Seed Lab | Scoop.it

In November 2014 the second call of the ZonMw Enabling Technologies programme will be opened. If you are interested in doing high-througput germination assays, you can write a project of max 30 k€. Also many other technologies will be available within this programme.

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New WSL publication: Identification of reference genes for gene expression studies during seed germination and seedling establishment in Ricinus communis

New WSL publication: Identification of reference genes for gene expression studies during seed germination and seedling establishment in Ricinus communis | Wageningen Seed Lab | Scoop.it

Publication in Seed Science Research by Paulo R. Ribeiro, Bas J. W. Dekkers, Luzimar G. Fernandez, Renato D. de Castro, Wilco Ligterink and Henk W. M. Hilhorst

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Recordings of Hanzi He's PhD defence

Recordings of Hanzi He's PhD defence | Wageningen Seed Lab | Scoop.it

For those that missed the PhD defence of Hanzie He, 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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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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New WSL review: Acquisition and loss of desiccation tolerance in seeds: from experimental model to biological relevance -in Planta

New WSL review: Acquisition and loss of desiccation tolerance in seeds: from experimental model to biological relevance -in Planta | Wageningen Seed Lab | Scoop.it

By Bas J. W. Dekkers, Maria Cecilia D. Costa, Julio Maia, Leónie Bentsink, Wilco Ligterink and Henk W. M. Hilhorst

 

Main conclusion

Besides being an important model to study desiccation tolerance, the induction of desiccation tolerance in germinated seeds may also play an ecological role in seedling establishment.

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New WSL publication: Promotion of Testa Rupture during Lepidium sativum Germination Involves Seed Compartment-Specific Expression and Activity of Pectin Methylesterases

New WSL publication: Promotion of Testa Rupture during Lepidium sativum Germination Involves Seed Compartment-Specific Expression and Activity of Pectin Methylesterases | Wageningen Seed Lab | Scoop.it

Article in Plant Physiology co-authored by Bas Dekkers and Leónie Bentsink

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Now open: call for proposals in the ZonMw/NWO Enabling Technologies Hotels programme with possibilities to get funding for (among others) the use of the GERMINATOR

Now open: call for proposals in the ZonMw/NWO Enabling Technologies Hotels programme with possibilities to get funding for (among others) the use of the GERMINATOR | Wageningen Seed Lab | Scoop.it
DTL and ZonMw/NWO announce that a second call of the ZonMw programme Enabling Technologies Hotels is now open until January 15, 2015. This programme aspires to give researchers in public-private partnerships (the ‘guests’) access to high-end infrastructures within public research organisations…
Wilco Ligterink's insight:

If you are interested in doing high-througput germination assays, you can write a project for max 30 k€. Also many other technologies are available within this programme

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New WSL publication: REDUCED DORMANCY5 Encodes a Protein Phosphatase 2C That Is Required for Seed Dormancy in Arabidopsis

New WSL publication: REDUCED DORMANCY5 Encodes a Protein Phosphatase 2C That Is Required for Seed Dormancy in Arabidopsis | Wageningen Seed Lab | Scoop.it

Article in The Plant Cell co-authored by Leónie Bentsink

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SOL 2014

SOL 2014 | Wageningen Seed Lab | Scoop.it

With on Tuesday 4 November in

Session IV - Phenotyping Tools (Metabolomics):

 

Wilco Ligterink (Wageningen University, The Netherlands):

Studying Seed and Seedling Quality in Tomato by Integration of

Phenotypic and Metabolic Profiling of Genetic by Environment

Interaction

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Third Dutch Seed Symposium: 7th of October in Wageningen

Third Dutch Seed Symposium: 7th of October in Wageningen | Wageningen Seed Lab | Scoop.it

On the 7th of October 2014 the Third Dutch Seed Symposium will be held in Wageningen. The agenda for this day is promising. If you really want to know what’s going on in seed research, or if you want to meet other people who work on the same subjects as you do: come and visit the 3rd Dutch Seed Symposium!

 

The Second Dutch Seed Symposium, in 2013, has been visited by more than 75 professionals in seed business and seed research.

 

Participation is open for members and non members of Plantum, but you have to register yourself before 26th of September. For participating an entrance fee of €100,- p.p., including lunch and drinks afterwards, will be charged with a maximum of €500,- per company for 5 or more participants of one company

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New WSL publication: Interaction between parental environment and genotype affects plant and seed performance in Arabidopsis

New WSL publication: Interaction between parental environment and genotype affects plant and seed performance in Arabidopsis | Wageningen Seed Lab | Scoop.it

Publication in JXB by Hanzi He, Deborah de Souza Vidigal, L. Basten Snoek, Sabine Schnabel, Harm Nijveen, Henk Hilhorst and Leónie Bentsink

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New WSL publication: Physiological and biochemical responses of Ricinus communis seedlings to different temperatures: a metabolomics approach. - BMC Plant Biology

New WSL publication: Physiological and biochemical responses of Ricinus communis seedlings to different temperatures: a metabolomics approach. - BMC Plant Biology | Wageningen Seed Lab | Scoop.it

Physiological and biochemical responses of Ricinus communis seedlings to different temperatures: a metabolomics approach

 

Paulo Roberto Ribeiro, Luzimar Gonzaga Fernandez, Renato Delmondez de Castro, Wilco Ligterink and Henk W M Hilhorst.

Compared with major crops, growth and development of Ricinus communis is still poorly understood. A better understanding of the biochemical and physiological aspects of germination and seedling growth is crucial for the breeding of high yielding varieties adapted to various growing environments. In this context, we analysed the effect of temperature on growth of young R. communis seedlings and we measured primary and secondary metabolites in roots and cotyledons. Three genotypes, recommended to small family farms as cash crop, were used in this study.
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