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Uptake of Water via Branches Helps Timberline Conifers Refill Embolized Xylem in Late Winter

02/12/2014 00:00

Stefan Mayr, Peter Schmid, Joan Laur, Sabine Rosner, Katline Charra-Vaskou, Birgit Dämon and Uwe G. Hacke Abstract: Xylem embolism is a limiting factor for woody species worldwide. Conifers at the alpine timberline are exposed to drought and freeze-thaw stress during winter, which induce...

Expansion of banana (Musa acuminata) gene families involved in ethylene biosynthesis and signalling after lineage‐specific whole‐genome duplications

02/07/2014 00:00

Cyril Jourda, Céline Cardi, Didier MBéguié-A-Mbéguié, Stéphanie Bocs, Olivier Garsmeur, Angélique D'Hont, Nabila Yahiaoui Abstract: Whole-genome duplications (WGDs) are widespread in plants, and three lineage-specific WGDs occurred in the banana (Musa acuminata) genome. Here, we...

The Brassicaceae-Specific EWR1 Gene Provides Resistance to Vascular Wilt Pathogens

02/05/2014 00:00

Koste A. Yadeta, Dirk-Jan Valkenburg, Mathieu Hanemian, Yves Marco and Bart P. H. J. Thomma Abstract: Soil-borne vascular wilt diseases caused by Verticillium spp. are among the most destructive diseases worldwide in a wide range of plant species. The most effective means of controlling...

Triterpene Biosynthesis in Plants

01/29/2014 00:00

Ramesha Thimmappa, Katrin Geisler, Thomas Louveau, Paul O'Maille, and Anne Osbourn Abstract The triterpenes are one of the most numerous and diverse groups of plant natural products. They are complex molecules that are, for the most part, beyond the reach of chemical synthesis. Simple...

Nitric oxide-triggered remodeling of chloroplast bioenergetics and thylakoid proteins upon nitrogen starvation in Chlamydomonas reinhardtii

01/28/2014 00:00

Wei L, Derrien B, Gautier A, Houille-Vernes L, Boulouis A, Saint-Marcoux D, Malnoë A, Rappaport F, de Vitry C, Vallon O, Choquet Y, Wollman FA. Abstract: Starving microalgae for nitrogen sources is commonly used as a biotechnological tool to boost storage of reduced carbon into starch...

Thylakoid FtsH protease contributes to photosystem II and cytochrome b6f remodeling in Chlamydomonas reinhardtii under stress conditions

01/21/2014 00:00

Malnoë A, Wang F, Girard-Bascou J, Wollman FA, de Vitry C Abstract: FtsH is the major thylakoid membrane protease found in organisms performing oxygenic photosynthesis. Here, we show that FtsH from Chlamydomonas reinhardtii forms heterooligomers comprising two subunits, FtsH1 and FtsH2. We...

The NF-YC1 interacting protein SIN1, a member of the GRAS family, is required for nodule organogenesis, infection thread progression and lateral root growth

01/14/2014 00:00

Marina Battaglia, Carolina Rípodas, Joaquín Clúa, Maël Baudin, O. Mario Aguilar, Andreas Niebel, María Eugenia Zanetti and Flavio Antonio Blanco Abstract: A C subunit of the heterotrimeric nuclear factor Y (NF-YC1) was shown to play a key role in nodule organogenesis and bacterial infection...

Genome-wide identification, phylogenetic analysis, expression profiling, and protein–protein interaction properties of TOPLESS gene family members in tomato

01/07/2014 00:00

Yanwei Hao, Xinyu Wang, Xian Li, Carole Bassa, Isabelle Mila, Corinne Audran, Elie Maza, Zhengguo Li, Mondher Bouzayen, Benoit van der Rest and Mohamed Zouine Abstract Members of the TOPLESS gene family emerged recently as key players in gene repression in several mechanisms, especially in...

The Saharan isolate Saccharothrix algeriensis NRRL B-24137 induces systemic resistance in Arabidopsis thaliana seedlings against Botrytis cinerea

01/01/2014 00:00

Saima Muzammil, Clotilde Graillon, Rayenne Saria, Florence Mathieu, Ahmed Lebrihi and Stéphane Compant Abstract: Saccharothrix algeriensis NRRL B-24137, isolated from a Saharan soil, has been described as a potential biocontrol agent against Botrytis cinerea and other phytopathogens....

Protein Epistasis and the Biophysical Constraints on Catalytic Promiscuity

12/31/2013 00:00

C Crenshaw, J Aljadeff, I Fernandez, C Laurendon, M Defernez, HJ Koo, PE O'Maille, T Sharpee, JP Noel Abstract: The limits of protein evolution are ultimately defined by biophysical constraints. Specifically, the maintenance of protein folding and stability is essential for the emergence...

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