By Ann Filmer
Animations and models of plant cell division are part of a new project investigating how plant cells form their distinctive walls.
Cell division is a fundamental aspect of life. Without cell division, living organisms do not grow. The last step of cell division, also called cytokinesis, is uniquely different in plants from that in animals and fungi due to the presence of cell walls in plants.
This 4D time sequence imaging from Georgia Drakakaki’s lab at UC Davis shows how new plant cell walls form between divided plant cells. Green, vesicles forming cell wall and red, cell membranes.
Full post: How Plant Cells Build The Wall
(540 words, 1 image, estimated 2:10 mins reading time)
Scientists are taking a new look at the inner workings of plants by imaging and modeling them in three dimensions.
“We’ve realized tremendous advances in technology for 3-D imaging of leaves,” said Tom Buckley, assistant professor of plant sciences at UC Davis.
Plant scientists are getting new insight by imaging and modeling leaves in three dimensions. (Image: University of Sydney)
Recent developments are summarized in an article in Trends in Plant Sciences, which sprang from a 2017 workshop at the University of Sydney organized by Buckley and Professor Margaret Barbour, University of Sydney.
Full post: Seeing Plants in Three Dimensions
(318 words, 1 image, estimated 1:16 mins reading time)
SIK1 Gene Opens Possibilities for Treating Disease, Breeding Resistant Crops
Just like humans, plants have an immune system that helps them fight off infections. Plant immunity has some important differences: they don’t make antibodies and can’t fight off the same bug more quickly months or years later. However, plant cells can identify pathogens and react to them, often by producing a burst of reactive oxygen which is toxic to bacteria or fungi. Cells around an infected site will go into programmed cell death to seal off the disease.