Results 1 to 10 of about 437 (159)

Distinct C4 sub‐types and C3 bundle sheath isolation in the Paniceae grasses [PDF]

open access: yesPlant Direct, 2021
In C4 plants, the enzymatic machinery underpinning photosynthesis can vary, with, for example, three distinct C4 acid decarboxylases being used to release CO2 in the vicinity of RuBisCO.
Jacob D. Washburn   +8 more
doaj   +2 more sources

Systematics and Phylogenetic Placement of Panicum L. Species within the Melinidinae Based on Morphological, Anatomical, and Molecular Data (Poaceae, Panicoideae, Paniceae) [PDF]

open access: yesPlants, 2023
Generic boundaries of the African species Panicum deustum Thunb., Panicum trichocladum Hack. ex K. Schum., and Panicum vollesenii Renvoize are analyzed and compared with related genera of the tribe Paniceae and the subtribe Melinidinae.
Carolina Delfini   +3 more
doaj   +2 more sources

Revisão de Mesosetum Steudel ( Gramineae: Paniceae) [PDF]

open access: yesActa Amazonica, 1989
RESUMOApresenta-se uma revisão taxonômica do gênero Mesosetum Steudel (Gramineae: Paniceae). O gênero distingue-se dos demais de sua tribo pela inflorescência em espiga terminal, solitária, espiguetas com primeira gluma voltada para a raque e cariopse ...
Tarciso S. Filgueiras
doaj   +4 more sources

Phytoliths in Inflorescence Bracts: Preliminary Results of an Investigation on Common Panicoideae Plants in China [PDF]

open access: yesFrontiers in Plant Science, 2020
Phytoliths in the inflorescence of Poaceae plants can be of high taxonomic value in some archaeological contexts and provide insight into plant taxonomy and crop domestication processes. In this study, phytoliths in every inflorescence bract of 38 common
Yong Ge   +10 more
doaj   +2 more sources

Paspalum L. (Poaceae: Panicoideae: Paniceae) no estado de Pernambuco, Brasil Paspalum L. (Poaceae: Panicoideae: Paniceae) in Pernambuco state, Brazil

open access: yesActa Botânica Brasílica, 2009
No presente trabalho são tratadas as espécies de Paspalum que ocorrem no Estado de Pernambuco. O estudo foi baseado em trabalho de campo, com duração de dois anos, e em espécimes analisados em 18 herbários do Brasil.
Jefferson Rodrigues Maciel   +2 more
doaj   +3 more sources

Phylogenetics of Paniceae (Poaceae) [PDF]

open access: yesAmerican Journal of Botany, 2001
Paniceae demonstrate unique variability of photosynthetic physiology and anatomy, including both non‐Kranz and Kranz species and all subtypes of the latter. This variability suggests hypotheses of independent origin or reversals (e.g., from C4 to C3). These hypotheses can be tested by phylogenetic analysis of independent molecular characters.
M R, Duvall, J D, Noll, A H, Minn
openaire   +2 more sources

NOMENCLATURAL AND CRITICAL NOTES ON SOME BRAZILIAN SPECIES OF Paspalum (POACEAE: PANICEAE) [PDF]

open access: yesActa Amazonica, 1993
A critical analysis of the type collections of 39 species names of Paspalum L. (Poaceae: Paniceae) from Brazil described by Swallen is presented along with comments based on more recent gatherings of the species. Eighteen new synonyms are proposed.
Tarciso S. FILGUEIRAS
doaj   +1 more source

Macro-Climatic Distribution Limits Show Both Niche Expansion and Niche Specialization among C4 Panicoids. [PDF]

open access: yesPLoS ONE, 2016
Grasses are ancestrally tropical understory species whose current dominance in warm open habitats is linked to the evolution of C4 photosynthesis. C4 grasses maintain high rates of photosynthesis in warm and water stressed environments, and the syndrome ...
Lone Aagesen   +5 more
doaj   +1 more source

Nova ocorrência de Poaceae para a América do Sul: alloteropsis (Panicoideae/Poaceae) New occurrences of Poaceae for the South America: alloteropsis (Panicoideae/Poaceae)

open access: yesActa Amazonica, 2012
Registra-se, pela primeira vez, a ocorrência de Alloteropsis J. Presl (Panicoideae/Paniceae s.l.) no Brasil (Alloteropsis cimina(L.) Stapf), no Estado do Amapá. Este é também o primeiro registro do gênero e da espécie na América do Sul.
Antônio Elielson Sousa da Rocha   +1 more
doaj   +1 more source

Checklist das Poaceae de áreas inundáveis e inundadas do nordeste do estado do Pará Checklist of Poaceae in periodically and permanently flooded areas in northeastern region of Pará state

open access: yesActa Amazonica, 2009
É apresentada uma relação de Poaceae coletadas em áreas inundáveis e inundadas do nordeste do Estado do Pará. São registrados 31 gêneros, compreendendo 83 espécies.
Antônio Elielson Sousa da Rocha   +1 more
doaj   +1 more source

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