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Enhanced salt tolerance mediated by AtHKT1 transporter-induced Na unloading from xylem vessels to xylem parenchyma cells.
- Sunarpi, T. Horie, N. Uozumi
- Environmental ScienceThe Plant journal : for cell and molecular…
- 25 November 2005
Findings show that AtHKT1 selectively unloads sodium directly from xylem vessels to xyleM parenchyma cells, thereby playing a central role in protecting plant leaves from salinity stress.
Three-dimensional arrangement of F-actin in the contractile ring of fission yeast
This work considers that the contractile ring is initially assembled from a single site in the division plane and that filaments subsequently rearrange before contraction initiates, and shows that the ring filaments show mixed directionality.
Two Distinct Pathways for Targeting Proteins from the Cytoplasm to the Vacuole/Lysosome
- M. Baba, M. Osumi, S. Scott, D. Klionsky, Y. Ohsumi
- BiologyThe Journal of cell biology
- 29 December 1997
Results indicate that two related but distinct autophagy-like processes are involved in both biogenesis of vacuolar resident proteins and sequestration of substrates to be degraded.
The ultrastructure of yeast: cell wall structure and formation.
- M. Osumi
- 1 April 1998
Catalase Activities of Hydrocarbon-utilizing Candida Yeasts
Cytochemical studies using 3,3′-diaminobenzidine (DAB) revealed that theCatalase activity was located in microbodies, suggesting that the catalase activities would be related to the hydrocarbon metabolism in the yeasts.
Modification of a ubiquitin-like protein Paz2 conducted micropexophagy through formation of a novel membrane structure.
It is shown that Paz2 and its modification system conduct micro Apexophagy through formation of the membrane structure, which explains the convergence between micropexophagy and macroautophagy with regard to de novo membrane formation.
Role of septins and the exocyst complex in the function of hydrolytic enzymes responsible for fission yeast cell separation.
- A. Martín-Cuadrado, J. L. Morrell, C. V. D. de Aldana
- BiologyMolecular biology of the cell
- 1 October 2005
One of the functions of the septin ring would be to act as a positional marker for the localization of hydrolytic proteins to the medial region in Schizosaccharomyces pombe.
Fission yeast autophagy induced by nitrogen starvation generates a nitrogen source that drives adaptation processes
- Toshiki A Kohda, Kayoko Tanaka, M. Konomi, Mamiko Sato, M. Osumi, Masayuki Yamamoto
- BiologyGenes to cells : devoted to molecular & cellular…
- 1 February 2007
It is proposed that fission yeast autophagy functions to supply nitrogen and is activated when cells cannot access exogenous nitrogen, thus ensuring that they can adapt and subsequently propagate.
Loss of cell wall alpha(1‐3) glucan affects Cryptococcus neoformans from ultrastructure to virulence
These studies integrate morphological and biochemical investigations of the role of alpha glucan in the cryptococcal cell wall and demonstrate complete loss ofalpha glucan accompanied by a compensatory increase in chitin/chitosan and a redistribution of beta glucan between cell wall fractions.
The (1,3)β‐d‐glucan synthase subunit Bgs1p is responsible for the fission yeast primary septum formation
It is demonstrated that in the absence of Bgs1p abnormal septa are formed, but the cells cannot separate and eventually die, and linear (1,3)β‐d‐glucan is necessary but not sufficient for primary septum formation.