[{"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","title":"Tapetal cell fate, lineage and proliferation in the Arabidopsis anther","citation":{"apa":"Feng, X., &#38; Dickinson, H. G. (2010). Tapetal cell fate, lineage and proliferation in the Arabidopsis anther. <i>Development</i>. The Company of Biologists. <a href=\"https://doi.org/10.1242/dev.049320\">https://doi.org/10.1242/dev.049320</a>","chicago":"Feng, Xiaoqi, and Hugh G. Dickinson. “Tapetal Cell Fate, Lineage and Proliferation in the Arabidopsis Anther.” <i>Development</i>. The Company of Biologists, 2010. <a href=\"https://doi.org/10.1242/dev.049320\">https://doi.org/10.1242/dev.049320</a>.","ama":"Feng X, Dickinson HG. Tapetal cell fate, lineage and proliferation in the Arabidopsis anther. <i>Development</i>. 2010;137(14):2409-2416. doi:<a href=\"https://doi.org/10.1242/dev.049320\">10.1242/dev.049320</a>","ista":"Feng X, Dickinson HG. 2010. Tapetal cell fate, lineage and proliferation in the Arabidopsis anther. Development. 137(14), 2409–2416.","mla":"Feng, Xiaoqi, and Hugh G. Dickinson. “Tapetal Cell Fate, Lineage and Proliferation in the Arabidopsis Anther.” <i>Development</i>, vol. 137, no. 14, The Company of Biologists, 2010, pp. 2409–16, doi:<a href=\"https://doi.org/10.1242/dev.049320\">10.1242/dev.049320</a>.","short":"X. Feng, H.G. Dickinson, Development 137 (2010) 2409–2416.","ieee":"X. Feng and H. G. Dickinson, “Tapetal cell fate, lineage and proliferation in the Arabidopsis anther,” <i>Development</i>, vol. 137, no. 14. The Company of Biologists, pp. 2409–2416, 2010."},"quality_controlled":"1","article_type":"original","date_created":"2023-01-16T09:21:54Z","year":"2010","volume":137,"day":"15","keyword":["Developmental Biology","Molecular Biology","Anther Tapetum","Arabidopsis","Cell Fate Establishment","EMS1","Reproductive Cell Lineage"],"page":"2409-2416","type":"journal_article","article_processing_charge":"No","issue":"14","publication":"Development","extern":"1","publisher":"The Company of Biologists","_id":"12199","abstract":[{"text":"The four microsporangia of the flowering plant anther develop from archesporial cells in the L2 of the primordium. Within each microsporangium, developing microsporocytes are surrounded by concentric monolayers of tapetal, middle layer and endothecial cells. How this intricate array of tissues, each containing relatively few cells, is established in an organ possessing no formal meristems is poorly understood. We describe here the pivotal role of the LRR receptor kinase EXCESS MICROSPOROCYTES 1 (EMS1) in forming the monolayer of tapetal nurse cells in Arabidopsis. Unusually for plants, tapetal cells are specified very early in development, and are subsequently stimulated to proliferate by a receptor-like kinase (RLK) complex that includes EMS1. Mutations in members of this EMS1 signalling complex and its putative ligand result in male-sterile plants in which tapetal initials fail to proliferate. Surprisingly, these cells continue to develop, isolated at the locular periphery. Mutant and wild-type microsporangia expand at similar rates and the ‘tapetal’ space at the periphery of mutant locules becomes occupied by microsporocytes. However, induction of late expression of EMS1 in the few tapetal initials in ems1 plants results in their proliferation to generate a functional tapetum, and this proliferation suppresses microsporocyte number. Our experiments also show that integrity of the tapetal monolayer is crucial for the maintenance of the polarity of divisions within it. This unexpected autonomy of the tapetal ‘lineage’ is discussed in the context of tissue development in complex plant organs, where constancy in size, shape and cell number is crucial.","lang":"eng"}],"pmid":1,"intvolume":"       137","status":"public","publication_status":"published","department":[{"_id":"XiFe"}],"acknowledgement":"We thank the following for providing mutant lines and reagents: Hong Ma, De Ye, Sacco De Vries, and Rod Scott for providing the pA9::Barnase lines and information on A9 expression patterns. Carla Galinha and Paolo Piazza gave valuable help with in situ hybridisation and qRT-PCR, respectively, and we acknowledge Qing Zhang, Helen Prescott and Matthew Dicks for providing excellent technical assistance. We are indebted to Miltos Tsiantis and Angela Hay for helpful discussion, and the research was funded by Oxford University through a Clarendon Scholarship to X.F., with additional financial support from Magdalen College (Oxford).","publication_identifier":{"issn":["1477-9129","0950-1991"]},"doi":"10.1242/dev.049320","oa_version":"None","scopus_import":"1","month":"07","external_id":{"pmid":["20570940"]},"language":[{"iso":"eng"}],"date_updated":"2023-05-08T10:57:11Z","author":[{"first_name":"Xiaoqi","orcid":"0000-0002-4008-1234","full_name":"Feng, Xiaoqi","id":"e0164712-22ee-11ed-b12a-d80fcdf35958","last_name":"Feng"},{"full_name":"Dickinson, Hugh G.","last_name":"Dickinson","first_name":"Hugh G."}],"date_published":"2010-07-15T00:00:00Z"},{"quality_controlled":"1","article_type":"original","date_created":"2023-01-16T09:22:18Z","year":"2010","citation":{"short":"X. Feng, H.G. Dickinson, Biochemical Society Transactions 38 (2010) 571–576.","ieee":"X. Feng and H. G. Dickinson, “Cell–cell interactions during patterning of the <i>Arabidopsis</i> anther,” <i>Biochemical Society Transactions</i>, vol. 38, no. 2. Portland Press Ltd., pp. 571–576, 2010.","mla":"Feng, Xiaoqi, and Hugh G. Dickinson. “Cell–Cell Interactions during Patterning of the <i>Arabidopsis</i> Anther.” <i>Biochemical Society Transactions</i>, vol. 38, no. 2, Portland Press Ltd., 2010, pp. 571–76, doi:<a href=\"https://doi.org/10.1042/bst0380571\">10.1042/bst0380571</a>.","apa":"Feng, X., &#38; Dickinson, H. G. (2010). Cell–cell interactions during patterning of the <i>Arabidopsis</i> anther. <i>Biochemical Society Transactions</i>. Portland Press Ltd. <a href=\"https://doi.org/10.1042/bst0380571\">https://doi.org/10.1042/bst0380571</a>","chicago":"Feng, Xiaoqi, and Hugh G. Dickinson. “Cell–Cell Interactions during Patterning of the <i>Arabidopsis</i> Anther.” <i>Biochemical Society Transactions</i>. Portland Press Ltd., 2010. <a href=\"https://doi.org/10.1042/bst0380571\">https://doi.org/10.1042/bst0380571</a>.","ama":"Feng X, Dickinson HG. Cell–cell interactions during patterning of the <i>Arabidopsis</i> anther. <i>Biochemical Society Transactions</i>. 2010;38(2):571-576. doi:<a href=\"https://doi.org/10.1042/bst0380571\">10.1042/bst0380571</a>","ista":"Feng X, Dickinson HG. 2010. Cell–cell interactions during patterning of the <i>Arabidopsis</i> anther. Biochemical Society Transactions. 38(2), 571–576."},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","title":"Cell–cell interactions during patterning of the <i>Arabidopsis</i> anther","publication_status":"published","_id":"12200","pmid":1,"abstract":[{"lang":"eng","text":"Key steps in the evolution of the angiosperm anther include the patterning of the concentrically organized microsporangium and the incorporation of four such microsporangia into a leaf-like structure. Mutant studies in the model plant Arabidopsis thaliana are leading to an increasingly accurate picture of (i) the cell lineages culminating in the different cell types present in the microsporangium (the microsporocytes, the tapetum, and the middle and endothecial layers), and (ii) some of the genes responsible for specifying their fates. However, the processes that confer polarity on the developing anther and position the microsporangia within it remain unclear. Certainly, data from a range of experimental strategies suggest that hormones play a central role in establishing polarity and the patterning of the anther initial, and may be responsible for locating the microsporangia. But the fact that microsporangia were originally positioned externally suggests that their development is likely to be autonomous, perhaps with the reproductive cells generating signals controlling the growth and division of the investing anther epidermis. These possibilities are discussed in the context of the expression of genes which initiate and maintain male and female reproductive development, and in the perspective of our current views of anther evolution."}],"intvolume":"        38","status":"public","article_processing_charge":"No","issue":"2","publication":"Biochemical Society Transactions","extern":"1","publisher":"Portland Press Ltd.","volume":38,"page":"571-576","keyword":["Biochemistry","Anther Development","Arabidopsis","Cell Fate","Microsporangium","Polarity","Receptor Kinase"],"day":"22","type":"journal_article","doi":"10.1042/bst0380571","publication_identifier":{"issn":["0300-5127","1470-8752"]},"department":[{"_id":"XiFe"}],"author":[{"first_name":"Xiaoqi","orcid":"0000-0002-4008-1234","last_name":"Feng","id":"e0164712-22ee-11ed-b12a-d80fcdf35958","full_name":"Feng, Xiaoqi"},{"first_name":"Hugh G.","last_name":"Dickinson","full_name":"Dickinson, Hugh G."}],"date_published":"2010-03-22T00:00:00Z","date_updated":"2023-05-08T10:57:59Z","external_id":{"pmid":["20298223"]},"language":[{"iso":"eng"}],"oa_version":"None","scopus_import":"1","month":"03"}]