PLANTAGO
LANCEOLATA MAY be a weed to most, but
to U.Va. biologist Deborah Roach, the
pesky perennial is a godsend in her quest
to understand the aging process. Roach
has taken some 30,000 plantago plants
under her thumb in an attempt to evaluate
mortality patterns at the latest stages
of life
and try to see what shapes those
patterns. At the root of her research
was an interesting discovery: plants
often continue to grow new leaves and
get larger even after they get older,
unlike most animals that achieve their
maximum size by the time they reach reproductive
maturity. “With my plants, there’s
reason to think that maybe aging doesn’t
occur,” said Roach, indicating
a key difference between plants and animals. Full
story.
A&S
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