3.9 C
Oxford
Thursday, April 2, 2020

Erin Zimmerman

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https://www.drerinzimmerman.com/
Erin Zimmerman is a botanist turned science writer and sometimes botanical illustrator. She did her PhD at the University of Montréal and worked as a post-doctoral fellow with the Canadian Ministry of Agriculture. She was a plant morphologist, but when no one wanted to pay her to do that anymore, she started writing about them instead. Her other plant articles (and occasional essays) appear in Smithsonian Magazine, Undark, New York Magazine, Narratively, and elsewhere. Read her stuff at www.DrErinZimmerman.com. Erin can also be found talking about plants and being snarky on Twitter @DoctorZedd.

Complex interplay of responses when plants experience canopy shading

Plants react to both decreased red:far red ratio and decreased photosynthetically active radiation, and in different ways.

X-ray dose limits for microscopy lower than we thought

Subtle damage to hydrated tissue occurs at a far lower dosage than previously thought, and may be difficult to recognize.

Males become female when striped maples take a health hit

Above a certain trauma threshold, male trees had a high probability of becoming female, possibly in a bid to better their chances at reproduction.

European white oak hybrids can be well-identified with a small set of genetic markers

A limited set of SNPs identified the species of test trees with a high degree of accuracy, finding asymmetrical mixing among the three species.

Leaf trichomes may avoid water stress in part by impeding gall formation

Trichomes seem to help prevent the larger gall types that lead to greater water loss.

Botanists explore how mint makes a home for ants and mites

Domatia in a member of the mint family are caused by cell proliferation, not leaf rolling

Delayed aluminium exclusion in signal grass is energy-dependent

The mechanism requires a day or two from exposure to exclude the metal from the intracellular compartment.

The SAUR41 subfamily of genes is involved in cell expansion and salt tolerance

The SAUR41 genes are ABA inducible and active during seedling establishment.

Rice chloroplasts become more spherical under salt stress

Though the cause isn’t clear, the chloroplasts may be reacting to carbon dioxide or light levels.

Diversification in Mediterranean firs occurred much earlier than expected

Mediterranean firs appeared millions of years earlier than was supposed, and likely through a single colonization event from Asia.

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