Entries by Robert Augustine

Nuclear Positioning Requires a Tug-of-War Between Kinesin Motors

The microtubule (MT) cytoskeleton is a dynamic network of self-assembling highways that, together with the help of motor proteins, promotes intracellular transport and the formation of magnificent structures such as the preprophase band, mitotic spindle, and phragmoplast (Nebenführ and Dixit, 2018).  Antagonistic interplay between MT minus- and plus-end-directed motors is tightly orchestrated and important for […]

Live and Let Die: Phosphatidic Acid Modulates the Self-Incompatibility Response

Pollen tubes are remarkable vehicles that deliver immobile sperm nuclei from the stigma to the ovule during angiosperm reproduction. Their journey delicately balances turgor pressure with the precise spatiotemporal regulation of polarized growth machinery to navigate pollen tubes and their cargo to the female gametophyte. To optimize genetic diversity, nearly half of all flowering plant […]