How tiger sharks affect Shark Bay’s ecosystem

submitted by: nsf

For the last two decades, Michael Heithaus has been studying how tiger sharks affect one particular ecosystem – Shark Bay, Australia, one of the world’s most pristine seagrass ecosystems. The Florida International University biologist explains how his team studies these top predators and their prey, and why tiger sharks are so important to the health of Shark Bay.

MyD88 knockout mice develop initial enlarged periapical

AIM: To characterize the formation and progression of experimentally induced periapical lesions in teeth of MyD88 knockout (MyD88 KO) mice compared with wild-type (WT) mice. METHODOLOGY: Periapical lesions were induced in the mandibular first molars of 30 WT and 30 MyD88 KO mice. After 7, 21 and 42 days, the animals were euthanized and the mandibles were subjected to histotechnical processing. Histological sections were stained with haematoxylin and eosin (HE), TRAP histoenzymology,...
Authors: Raquel Assed Bezerra da Silva, Paulo Nelson-Filho, Marília Pacífico Lucisano, Andiara De Rossi, Alexandra Mussolino de Queiroz, Lea Assed Bezerra da Silva

biosights: August 4, 2014 - Rok keeps its finger on the pulse of apical constriction

submitted by: JCB
Early in Drosophila embryogenesis, contractile pulses of myosin assembly and disassembly constrict the apical domains of a group of epithelial cells to drive their invagination into a ventral furrow. Vasquez et al. reveal that Rho kinase and myosin phosphatase dynamically regulate these myosin pulses and that the stepwise constriction resulting from this helps maintain tissue integrity during epithelial invagination. This biosights episode presents the paper by Vasquez et al. from the August...

Annalee Newitz at the 2014 DOE JGI Genomics of Energy & Environment Meeting

submitted by: JGI

Annalee Newitz, io9, at the 9th Annual Genomics of Energy & Environment Meeting on March 20, 2014 in Walnut Creek, Calif.

Stephen Quake at the 2014 DOE JGI Genomics of Energy & Environment Meeting

submitted by: JGI

Steve Quake, Stanford University, at the 9th Annual Genomics of Energy & Environment Meeting on March 18, 2014 in Walnut creek, Calif.

Eddy Rubin at the 2014 DOE JGI Genomics of Energy & Environment Meeting

submitted by: JGI
Eddy Rubin, DOE JGI Director, at the 9th Annual Genomics of Energy & Environment Meeting on March 19, 2014 in Walnut Creek, Calif. The talk is related to a study published in the journal Science - details at http://jgi.doe.gov/glimpse-natures-looking-glass-to-find-the-genetic-cod... .