M
Michael D. Allen
Researcher at University of California, Los Angeles
Publications - 8
Citations - 880
Michael D. Allen is an academic researcher from University of California, Los Angeles. The author has contributed to research in topics: Chlamydomonas & Chlamydomonas reinhardtii. The author has an hindex of 7, co-authored 8 publications receiving 795 citations.
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Journal ArticleDOI
Between a rock and a hard place: trace element nutrition in Chlamydomonas.
Sabeeha S. Merchant,Michael D. Allen,Janette Kropat,Jeffrey L. Moseley,Joanne C. Long,Stephen Tottey,Aimee M. Terauchi +6 more
TL;DR: The Chlamydomonas model is ideal for future investigation of nutritional manganese deficiency and selenoenzyme function and is also suited for studies of trace nutrient interactions, nutrition-dependent metabolic changes, the relationship between photo-oxidative stress and metal homeostasis.
Journal ArticleDOI
Arabidopsis CHL27, located in both envelope and thylakoid membranes, is required for the synthesis of protochlorophyllide.
Stephen Tottey,Maryse A. Block,Michael D. Allen,Tomas Westergren,Catherine Albrieux,Henrik Vibe Scheller,Sabeeha S. Merchant,Poul Erik Jensen +7 more
TL;DR: Fractionation of Arabidopsis chloroplast membranes shows that Crd1/CHL27 is equally distributed on a membrane-weight basis in the thylakoid and inner-envelope membranes.
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Manganese Deficiency in Chlamydomonas Results in Loss of Photosystem II and MnSOD Function, Sensitivity to Peroxides, and Secondary Phosphorus and Iron Deficiency
TL;DR: In this paper, the expression of MSD3 through MSD5, encoding various isoforms of the MnSODs, is upregulated severalfold in Mn-deficient cells, but neither expression nor activity of the plastid Fe-containing superoxide dismutase is changed, which contrasts with the dramatically increased MSD 3 expression and plastide Mn SOD activity in Fe-deficiency cells.
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FEA1, FEA2, and FRE1, encoding two homologous secreted proteins and a candidate ferrireductase, are expressed coordinately with FOX1 and FTR1 in iron-deficient Chlamydomonas reinhardtii.
TL;DR: The version 3.0 draft genome is surveyed to identify a ferrireductase, FRE1, and two ZIP family proteins, IRT1 and IRT2, as candidate ferrous transporters based on their increased expression in iron-deficient versus iron-replete cells.
Journal ArticleDOI
Fe Sparing and Fe Recycling Contribute to Increased Superoxide Dismutase Capacity in Iron-Starved Chlamydomonas reinhardtii
M. Dudley Page,Michael D. Allen,Janette Kropat,Eugen I. Urzica,Steven J. Karpowicz,Scott I. Hsieh,Joseph A. Loo,Sabeeha S. Merchant +7 more
TL;DR: Two pathways increase the capacity of the Chlamydomonas chloroplast to detoxify superoxide during Fe limitation stress, and a novel plastid-localized MnSOD is expressed in response to Fe limitation, suggesting the operation of salvage mechanisms for intracellular recycling and reallocation.