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- W3201609836 endingPage "1161" @default.
- W3201609836 startingPage "1145" @default.
- W3201609836 abstract "SUMMARY The movement of organelles and vesicles in pollen tubes depends on F‐actin. However, the molecular mechanism through which plant myosin XI drives the movement of organelles is still controversial, and the relationship between myosin XI and vesicle movement in pollen tubes is also unclear. In this study, we found that the siliques of the myosin xi‐b/e mutant were obviously shorter than those of the wild‐type (WT) and that the seed set of the mutant was severely deficient. The pollen tube growth of myosin xi‐b/e was significantly inhibited both in vitro and in vivo . Fluorescence recovery after photobleaching showed that the velocity of vesicle movement in the pollen tube tip of the myosin xi‐b/e mutant was lower than that of the WT. It was also found that peroxisome movement was significantly inhibited in the pollen tubes of the myosin xi‐b/e mutant, while the velocities of the Golgi stack and mitochondrial movement decreased relatively less in the pollen tubes of the mutant. The endoplasmic reticulum streaming in the pollen tube shanks was not significantly different between the WT and the myosin xi‐b/e mutant. In addition, we found that myosin XI‐B‐GFP colocalized obviously with vesicles and peroxisomes in the pollen tubes of Arabidopsis. Taken together, these results indicate that myosin XI‐B may bind mainly to vesicles and peroxisomes, and drive their movement in pollen tubes. These results also suggest that the mechanism by which myosin XI drives organelle movement in plant cells may be evolutionarily conserved compared with other eukaryotic cells." @default.
- W3201609836 created "2021-09-27" @default.
- W3201609836 creator A5023649321 @default.
- W3201609836 creator A5057559326 @default.
- W3201609836 creator A5057852707 @default.
- W3201609836 date "2021-10-07" @default.
- W3201609836 modified "2023-10-02" @default.
- W3201609836 title "Myosin XI‐B is involved in the transport of vesicles and organelles in pollen tubes of <i>Arabidopsis thaliana</i>" @default.
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