Project/scholarship details
- Project/scholarship ID
130678
- Reference
PTDC/BIA-PLA/4018/2012
- FundRef URI
- Funder
FCT - Fundação para a Ciência e a Tecnologia, I.P.
- Funder's country
Portugal
- Funding program
3599-PPCDT
- Funding amount
137,383.00 €
- Start date
2013-01-01
- End date
2014-12-31
Documents
Transcriptional profiling of Arabidopsis root hairs and pollen defines an apica...
Becker, Jörg D; Takeda, Seiji; Borges, Filipe; Dolan, Liam; Feijó, José ACurrent views on the control of cell development are anchored on the notion that phenotypes are defined by networks of transcriptional activity. The large amounts of information brought about by transcriptomics should allow the definition of these networks through the analysis of cell-specific transcriptional signatures. Here we test this principle by applying an analogue to comparative anatomy at the cellular ...
GABA signalling modulates plant growth by directly regulating the activity of p...
Ramesh, Sunita A.; Tyerman, Stephen D.; Xu, Bo; Bose, Jayakumar; Kaur, Satwinder; Conn, Vanessa; Domingos, Patricia; Ullah, Sana; Wege, StefanieThe non-protein amino acid, gamma-aminobutyric acid (GABA) rapidly accumulates in plant tissues in response to biotic and abiotic stress, and regulates plant growth. Until now it was not known whether GABA exerts its effects in plants through the regulation of carbon metabolism or via an unidentified signalling pathway. Here, we demonstrate that anion flux through plant aluminium-activated malate transporter (A...
HydroxyprolineO-arabinosyltransferase mutants oppositely alter tip growth inAra...
MacAlister, Cora A.; Ortiz-Ramírez, Carlos; Becker, Jörg D.; Feijó, José A.; Lippman, Zachary B.Hydroxyproline O-arabinosyltransferases (HPATs) are members of a small, deeply conserved family of plant-specific glycosyltransferases that add arabinose sugars to diverse proteins including cell wall-associated extensins and small signaling peptides. Recent genetic studies in flowering plants suggest that different HPAT homologs have been co-opted to function in diverse species-specific developmental contexts....
A Transcriptome Atlas of Physcomitrella patens Provides Insights into the Evolu...
Ortiz-Ramírez, Carlos; Hernandez-Coronado, Marcela; Thamm, Anna; Catarino, Bruno; Wang, Mingyi; Dolan, Liam; Feijó, José A.; Becker, Jörg D.Post-print version of the article.; Identifying the genetic mechanisms that underpin the evolution of new organ and tissue systems is an aim of evolutionary developmental biology. Comparative functional genetic studies between angiosperms and bryophytes can define those genetic changes that were responsible for developmental innovations. Here, we report the generation of a transcriptome atlas covering most phas...
Glutamate receptor-like channels are essential for chemotaxis and reproduction ...
Ortiz-Ramírez, Carlos; Michard, Erwan; Simon, Alexander A.; Damineli, Daniel S. C.; Hernández-Coronado, Marcela; Becker, Jörg D.; Feijó, José A.The deposited article version is a "Accelerated Article Preview" provided by Nature Publishing Group, and it contains attached the supplementary materials within the pdf.». This publication hasn't any creative commons license associated.; Glutamate receptors are well characterized channels that mediate cell-to-cell communication during neurotransmission in animals. Nevertheless, information regarding their func...
Molecular and electrophysiological characterization of anion transport in Arabi...
Domingos, Patrícia; Dias, Pedro N; Tavares, Bárbara; Portes, Maria Teresa; Wudick, Michael M; Konrad, Kai R; Gilliham, Matthew; Bicho, AnaWe investigated the molecular basis and physiological implications of anion transport during pollen tube (PT) growth in Arabidopsis thaliana (Col-0). Patch-clamp whole-cell configuration analysis of pollen grain protoplasts revealed three subpopulations of anionic currents differentially regulated by cytoplasmic calcium ([Ca2+ ]cyt ). We investigated the pollen-expressed proteins AtSLAH3, AtALMT12, AtTMEM16 and...
Plasma membrane H+-ATPases sustain pollen tube growth and fertilization
Hoffmann, Robert D.; Portes, Maria Teresa; Olsen, Lene Irene; Damineli, Daniel Santa Cruz; Hayashi, Maki; Nunes, Custódio O.; Pedersen, Jesper T.Pollen tubes are highly polarized tip-growing cells that depend on cytosolic pH gradients for signaling and growth. Autoinhibited plasma membrane proton (H+) ATPases (AHAs) have been proposed to energize pollen tube growth and underlie cell polarity, however, mechanistic evidence for this is lacking. Here we report that the combined loss of AHA6, AHA8, and AHA9 in Arabidopsis thaliana delays pollen germination ...
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