Cruciaetheca
WebIn Peltotheca-type plants, the activation of two modules results in a determinate reproductive structure composed of a series of fertile … WebMar 2, 2024 · Hierarchical expression of regulatory modules responsible for transition to reproductive growth; determinacy of apical growth; and node‐internode differentiation within phytomers, can explain reproductive morphologies illustrated by Cruciaetheca, Peltotheca and Equisetum and inspire a mechanism‐based hypothesis for the evolution of the ...
Cruciaetheca
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WebMar 2, 2024 · Patterns of sporangiophore numbers and sizes along fertile internodes of the Permian equisetalean Cruciaetheca (i) record the basipetal direction of tissue and organ maturation within internodes (j), generated by growth from intercalary meristems; sporangiophores in red, in the image tracing in i and in the diagram in j; internodes gray … WebNew material from the Lower Jurassic of Chubut Province, Patagonia, Argentina is described, adding further support to the hypothesis that the extant horsetails are a successful group that has undergone only little morphological changeover time and that has been present, nearly worldwide, since Jurassic times. Abstract. We describe Equisetum …
WebHowever, fossils historically excluded from these discussions (e.g. Cruciaetheca and Peltotheca ) exhibit reproductive morphologies that suggest attachment of sporangiophores along internodes, challenging traditional views. This has rekindled discussions around the evolution of the Equisetum strobilus, but lack of mechanistic explanations has ... WebMost species of Crustacea are aquatic and are found especially in salt water. Many crustaceans, including crayfish, lobsters, and prawns, serve as important human food. …
WebThe sphenophyte Peltotheca furcata, nov. gen. et sp., is described based on vegetative and reproductive organs. Unbranched vegetative axes bear foliar whorls of Barakaria-type leaves, while... WebOct 30, 2024 · Generally, phenotypic evolution is much greater between higher-order lineages than within them, with slow rates observed within Equiseteceae and most lineages within Calamitaceae, except the branch leading to Cruciaetheca. High rates of phenotypic evolution correspond to large distances in morphospace (figure 5a). Major lineages …
Webproduces Cruciaetheca-type plants having series of fertile phy - tomers alternating with vegetative ones as part of an indeterminate reproductive shoot (Tomescu et al., 2024). …
WebMar 2, 2024 · Patterns of sporangiophore numbers and sizes along fertile internodes of the Permian equisetalean Cruciaetheca (i) record the basipetal direction of tissue and organ maturation within internodes (j), generated by growth from intercalary meristems; sporangiophores in red, in the image tracing in i and in the diagram in j; internodes gray … bs シネマ nhkWebBackground The origin of the Equisetum strobilus has long been debated and the fossil record has played an important role in these discussions. The paradigm underlying these debates has been the perspective of the shoot as node–internode alternation, bs シネマクラッシュWebJan 1, 2006 · Europe PMC is an archive of life sciences journal literature. bsシネマ 日程WebFeb 24, 2024 · The most basic morphology (Cruciaetheca type) is the result of the expression of a single reproductive regulatory module (RM1), which controls the … bsシネマカレンダーWebMar 1, 2024 · However, fossils historically excluded from these discussions (e.g. Cruciaetheca and Peltotheca ) exhibit reproductive morphologies that suggest … bsシネマ フジWebDec 17, 2024 · Permian plant remains from the Vorkuta 1 location collected at the Earth Science Museum of the Moscow State University were characterized (at outcrop 38 at the left bank of the Vorkuta River within the boundaries of Vorkuta town opposite the Rudnik settlement). The collection includes equisetophytes Paracalamites decoratus (Eichwald) … bs シネマ 番組表WebJan 1, 2006 · Cruciaetheca shows a combination of morphological char- acters in their reproductive and vegetative parts that can be seen … bsシネマ 番組表