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Mycorrhizal Symbiosis

Phytoplasma - an obligate pathogen of plants

Kokkoris, V., Chagnon, P.L., Yildirir, G., Clarke, K., Goh, D., MacLean, A.M., Dettman, J., Stefani, F., and N. Corradi. (2021) Host identity influences nuclear dynamics in arbuscular mycorrhizal fungi. Current Biology  21:S0960-9822 doi: 10.1016/j.cub.2021.01.035.

Ghahremani, M., and A.M. MacLean (2020) Home sweet home - how mutualistic microbes modify root development to promote symbiosis. Journal of Experimental Botany

Lindsay, P. L., William, B.N., MacLean, A.M., and M.J. Harrison (2019) A Phosphate-Dependent Requirement for Transcription Factors IPD3 and IPD3L During Arbuscular Mycorrhizal Symbiosis in Medicago truncatula. Molecular Plant-Microbe Interactions 32:1277-1290.

Watts-Williams, S., Emmett, B.D., Levesque-Trembley, V.L., MacLean, A.M., Sun, X., Satterlee, J.W., Fei, Z., and M.J. Harrison. (2018) Diverse Sorghum bicolor accessions show marked variation in growth and transcriptional responses to arbuscular mycorrhizal fungi. Plant, Cell & Environment  doi: 10.1111/pce.13509.

Sun, X., Chen, W., Ivanov, S., MacLean, A.M., Wight, H., Ramaraj, T., Mudge, J., Harrison, M.J., and Z. Fei. (2018) Genome and evolution of the arbuscular mycorrhizal fungus Diversispora epigaea (formerly Glomus versiforme) and its bacterial endosymbionts. New Phytologist 221:1556-1573.

MacLean, A.M., Bravo, A., and M.J. Harrison. (2017). Plant Signaling and Metabolic Pathways Enabling Arbuscular Mycorrhizal Symbiosis. The Plant Cell 29:2319-2335.

Floss, D.S., Gomez, S.K., Park, H.J., MacLean, A.M., Müller, L.M., Bhattarai, K.K., Lévesque-Tremblay, V, Maldonado-Mendoza, I.E., and M. J. Harrison. (2017) A Transcriptional Program for Arbuscule Degeneration during AM Symbiosis Is Regulated by MYB1. Current Biology 27:1206-1212.

Makarova, O., MacLean, A.M., and M. Nicolaisen. (2015) Phytoplasma adapt to the diverse environments of their plant and insect hosts by altering gene expression. Physiological and Molecular Plant Pathology 91:81-87.

MacLean, A.M., Orlovskis, Z., Kowitwanich, K., Zdziarska, A.M., Angenent, G.C., Immink, R.G., and S. A. Hogenhout. (2014) Phytoplasma effector SAP54 hijacks plant reproduction by degrading MADS-box proteins and promotes insect colonization in a RAD23-dependent manner. PLoS Biology 12:e1001835.

Sugio, A., Maclean, A.M., and S.A. Hogenhout.  (2014) The small phytoplasma virulence effector SAP11 contains distinct domains required for nuclear targeting and CIN-TCP binding and destabilization. New Phytologist 202:838-848.

Sugio, A., Kingdom, H.N., MacLean, A.M., Grieve, V.M., and S.A. Hogenhout.  (2011) Phytoplasma protein effector SAP11 enhances insect vector reproduction by manipulating plant development and defense hormone biosynthesis. Proceedings of the National Academy of Sciences 108:E1254-E1263.

MacLean, A.M., Sugio, A., Makarova, O.V., Findlay, K.C., Grieve, V.M., Toth, R., Nicolaisen, M., and S.A. Hogenhout.  (2011) Phytoplasma effector SAP54 induces indeterminate leaf-like flower development in Arabidopsis plants. Plant Physiology 157:831-841.

Sugio, A., MacLean, A.M., Kingdom, H.N., Grieve, V.M., Manimekalai, R., and S.A. Hogenhout.  (2011) Diverse targets of phytoplasma effectors: from plant development to defense against insects. Annual Reviews of Phytopathology 49:175-195.

Sinorhizobium - a free-living occasional symbiont of legumes

diCenzo, G.C., MacLean A.M., Milunovic, B., Golding, G.B., and T. M. Finan (2014) Examination of prokaryotic multipartite genome evolution through experimental genome reduction. PLoS Genetics 10:e1004742.

MacLean, A.M., Haerty, W., Golding, G.B., and T.M. Finan.  (2011) The LysR-type PcaQ protein regulates expression of a protocatechuate-inducible ABC-type transport system in Sinorhizobium meliloti. Microbiology 157:2522-2533.

MacLean, A.M., White, C.E., Fowler, J.E., and T.M. Finan.  (2009)  Identification of a hydroxyproline transport system in the legume endosymbiont Sinorhizobium meliloti.  Molecular Plant-Microbe Interactions 22:1116-1127.

MacLean, A.M., Anstey, M.I., and T.M. Finan.  (2008)  Binding site determinants for the LysR-type transcriptional regulator PcaQ in the legume endosymbiont Sinorhizobium meliloti.  Journal of Bacteriology 190:1237-1246.

MacLean, A.M., Finan, T.M., and M.J. Sadowsky.  (2007)  Genomes of the symbiotic nitrogen-fixing bacteria of legumes.  Plant Physiology 144:615-622.

MacLean, A.M., MacPherson, G., Aneja, P., and T. M. Finan.  (2006)  Characterization of the beta-ketoadipate pathway in Sinorhizobium meliloti.  Applied and Environmental Microbiology 72:5403-5413.

MacLellan, S.R., MacLean, A.M., and T. M. Finan.  (2006)  Promoter prediction in the rhizobia.  Microbiology 152:1751-1763.

MacLellan, S.R., Zaheer, R., Sartor, A., MacLean, A.M., and T. M. Finan.  (2006)  Identification of a megaplasmid centromere reveals genetic structural diversity amongst the repABC family of basic replicons.  Molecular Microbiology 59:1559-1575.

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