Yang S-Y, Huang T-K, Kuo H-F, Chiou T-J (2017) Role of vacuoles in phosphorus storage and remobilization Journal of Experimental Botany: erw481
Vacuoles play a fundamental role in storage and remobilization of various nutrients, including phosphorus (P), an essential element for cell growth and development. Cells acquire P primarily in the form of inorganic orthophosphate (Pi). However, the form of P stored in vacuoles varies by organism and tissue. Algae and yeast store polyphosphates (polyPs), whereas plants store Pi and inositol phosphates (InsPs) in vegetative tissues and seeds, respectively. In this review, we summarize how vacuolar P molecules are stored and reallocated and how these processes are regulated and co-ordinated. The roles of SYG1/PHO81/XPR1 (SPX)-domain-containing membrane proteins in allocating vacuolar P are outlined. We also highlight the importance of vacuolar P in buffering the cytoplasmic Pi concentration to maintain cellular homeostasis when the external P supply fluctuates, and present additional roles for vacuolar polyP and InsP besides being a P reserve. Furthermore, we discuss the possibility of alternative pathways to recycle Pi from other P metabolites in vacuoles. Finally, future perspectives for researching this topic and its potential application in agriculture are proposed.
2017/08/21 10:30 AM
Dr. Chia-Lin Chung (Associate Professor, Department of Plant Pathology and Microbiology, National Taiwan University)
Bakanae of rice: new insights into an emerging old disease
Dr. Chung uses quantitative genetics approaches such as linkage mapping and genome-wide association mapping, in combined with molecular markers or whole-genome sequencing analysis, to dissect defense mechanisms against blast and bakanae disease in rice.
Auditorium A134, Agricultural Technology Building, Agricultural Biotechnology Research Center 2017/08/28 10:30 AM
Dr. Ho-Ming Chen (Assistant Research Fellow, Agricultural Biotechnology Research Center, Academia Sinica)
Toward RNA interference 2.0: new insights into the biogenesis, action, and movement of plant small RNA
Auditorium A134, Agricultural Technology Building, Agricultural Biotechnology Research Center