Claudia Tyler

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Zigadenusfremontii is often a striking component of the flora following firein the chaparral. Like other geophytes, it produces large numbers of flowers inthe first spring after a burn. Although these plants are most conspicuous intheearly postfire environment, the question that remains is, how do they persistinthe interval between fires? To address this we(More)
The role of foetal glutamate as a source of placental glutamine was investigated in the near-term pregnant guinea-pig placenta perfused in situ through the umbilical vessels. With normal foetal amino acid concentrations there was a significant two-way exchange of glutamate between the placenta and foetal perfusate, but a net release of the amino acid from(More)