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Search: authors:"Diane C. Bassham"

7 papers found.
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SnRK1 activates autophagy via the TOR signaling pathway in Arabidopsis thaliana

, Dr. Raju Datla for the TOR overexpression lines and Margaret Carter for assistance with confocal microscopy. Author Contributions Conceptualization: Diane C. Bassham. Funding acquisition: Diane C ... . Bassham. Investigation: Junmarie Soto-Burgos. Methodology: Junmarie Soto-Burgos. Project administration: Diane C. Bassham. Supervision: Diane C. Bassham. Writing ± original draft: Junmarie Soto-Burgos

Functional redundancy between trans-Golgi network SNARE family members in Arabidopsis thaliana

Background Vesicle fusion is an essential process for maintaining the structure and function of the endomembrane system. Fusion is mediated by t-SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor) fusion proteins on the target membrane and v-SNAREs on the vesicle membrane; v-and t-SNAREs interact with each other, driving vesicle fusion with the target...

Structure and function of endosomes in plant cells

Anthony L. Contento 0 Diane C. Bassham () 0 0 Department of Genetics, Development and Cell Biology, Iowa State University , Ames, IA 50011 , USA Summary Endosomes are a heterogeneous collection of

TOR Is a Negative Regulator of Autophagy in Arabidopsis thaliana

Background Autophagy is a protein degradation process by which cells recycle cytoplasmic contents under stress conditions or during senescence; a basal level of housekeeping autophagy also occurs under non-stressed conditions. Although a number of genes that function in autophagy (ATG genes) have been identified in plants, the upstream components that regulate the plant autophagy...

AtRabD2b and AtRabD2c have overlapping functions in pollen development and pollen tube growth

Background Rab GTPases are important regulators of endomembrane trafficking, regulating exocytosis, endocytosis and membrane recycling. Many Rab-like proteins exist in plants, but only a subset have been functionally characterized. Results Here we report that AtRabD2b and AtRabD2c play important roles in pollen development, germination and tube elongation. AtrabD2b and AtrabD2c...

Overexpression of Arabidopsis Sorting Nexin AtSNX2b Inhibits Endocytic Trafficking to the Vacuole

Sorting nexins are conserved proteins that function in vesicular trafficking and contain a characteristic phox homology (PX) domain. Here, we characterize the ubiquitously expressed Arabidopsis thaliana sorting nexin AtSNX2b. Sub-cellular fractionation studies indicate that AtSNX2b is peripherally associated with membranes. The AtSNX2b PX domain binds to phosphatidylinositol 3...

The syntaxin family of proteins in Arabidopsis: a new syntaxin homologue shows polymorphism between two ecotypes

The syntaxin family of proteins are involved in vesicle sorting, docking and fusion in the secretory pathway. The discovery of several syntaxin homologues in plants (AtPEP12p, KNOLLE, AtVAM3p) suggested that the general mechanisms of protein trafficking through the secretory pathway also apply to plant cells. The identification of another syntaxin homologue, the AtPLP (AtPEP12p...