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Addendum: Arabidopsis ubiquitin ligase MIEL1 mediates degradation of the transcription factor MYB30 weakening plant defence.
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INRA, Laboratoire des Interactions Plantes-Microorganismes, UMR441, Castanet-Tolosan, F-31326, France.
Arabidopsis thaliana homeodomain-leucine zipper type I transcription factors contribute to control leaf venation patterning.
Plant Signal Behav
March 2018
a Instituto de Agrobiotecnología del Litoral, Universidad Nacional del Litoral - CONICET, Facultad de Bioquímica y Ciencias Biológicas , Colectora Ruta Nacional 168 km 0, Santa Fe , Argentina.
Venation patterning is a taxonomic attribute for classification of plants and it also plays a role in the interaction of plants with the environment. Despite its importance, the molecular physiology controlling this aspect of plant development is still poorly understood. Auxin plays a central role modulating the final vein network and patterning.
View Article and Find Full Text PDFA crosstalk between extracellular ATP and jasmonate signaling pathways for plant defense.
Plant Signal Behav
August 2019
a Department of Plant Pathology , Washington State University, Pullman , WA , USA.
Damage-associated molecular patterns (DAMPs), such as extracellular ATP, act as danger signals in response to biotic and abiotic stresses. Extracellular ATP is perceived by a plant purinoceptor, P2 receptor kinase 1 (P2K1), inducing downstream signaling for defense responses. How ATP induces these defense responses has not been well studied.
View Article and Find Full Text PDFSupraoptimal activity of CHLOROPHYLL DEPHYTYLASE1 results in an increase in tocopherol level in mature arabidopsis seeds.
Plant Signal Behav
November 2017
a Agricultural Biotechnology Research Center, Academia Sinica , Taipei , Taiwan , R.O.C.
Tocopherols are synthesized in photosynthetic organisms, playing a role in plant stress tolerance. Recent studies showed that the phytol moiety of tocopherols comes from the salvaged phytol chain during chlorophyll degradation. However, the enzyme(s) responsible for chlorophyll dephytylation remains unclear.
View Article and Find Full Text PDFHow DELLAs contribute to control potassium uptake under conditions of potassium scarcity? Hypotheses and uncertainties.
Plant Signal Behav
October 2017
a Instituto Tecnológico Chascomús (INTECH), Consejo Nacional de Investigaciones Científicas y Técnicas , Universidad Nacional de San Martín (CONICET-UNSAM) . Avenida Intendente Marino, Chascomús, Buenos Aires , Argentina.
Maintenance of the inward transport of potassium (K) by roots is a critical step to ensure K-nutrition for all plant tissues. When plants are grown at low external K concentrations a strong enhancement of the activity of the AtHAK5 transporter takes place. In a recent work, we observed that the gai-1 mutant of Arabidopsis thaliana, which bears an altered function version of a DELLA regulatory protein, displays reduced accumulation of AtHAK5 transcripts and reduced uptake of Rubidium, an analog for K.
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