Results 1 to 10 of about 1,217 (174)

A Constitutively Active Cytokinin Receptor Variant Increases Cambial Activity and Stem Growth in Poplar. [PDF]

open access: yesInt J Mol Sci, 2022
The cambial meristem is responsible for bark and wood formation in woody plants. The activity of the cambial meristem is controlled by various factors; one of them is the plant hormone cytokinin. Here, we have explored different approaches to genetically engineering cambial activity in poplar plants by the ectopic expression of a cytokinin biosynthesis
Riefler M   +3 more
europepmc   +8 more sources

A new vesselless angiosperm stem with a cambial variant from the Upper Cretaceous of Antarctica [PDF]

open access: yesActa Palaeontologica Polonica, 2020
We sectioned a permineralized stem preserved in marine calcareous concretions from the Campanian (Upper Cretaceous) of James Ross Island, Antarctic Peninsula using the cellulose-acetate peel technique.
M. Laura Pipo   +2 more
doaj   +7 more sources

Stem cambial variants of Taiwan lianas. [PDF]

open access: yesBot Stud, 2022
Abstract Background: Cambium in lianas, responsible for secondary growth, develop diverse and diagnostic traits during the climbing phase. Studies on the cross-section of Taiwanese liana cambial variants are scarce. We collected multiple stem cross-sections from 287 liana species belonging to 52 families.
Yang SZ, Chen PH, Chen JJ.
europepmc   +7 more sources

Phloem wedges in Malpighiaceae: origin, structure, diversification, and systematic relevance [PDF]

open access: yesEvoDevo, 2022
Background Phloem wedges furrowing the wood are one of the most notorious, widespread types of cambial variants in Angiosperms. Many lianas in Malpighiaceae show these variations in the arrangement of the secondary tissues. Here we explore their ontogeny,
Angélica Quintanar-Castillo   +1 more
doaj   +2 more sources

Nueva variante cambial en el género Ephedra (Ephedraceae) [PDF]

open access: yesBoletín de la Sociedad Argentina de Botánica, 1970
En esta contribución se presentan los resultados de un estudio sobre el leño caulinar de la liana Ephedra tweediana Fisch. & C.A. Mey. emend. J.H. Hunz. (Ephedraceae), mediante técnicas anatómicas convencionales. Se da a conocer por primera vez para el género la presencia de la variante cambial “tallos lobulados”; y por primera vez para la especie ...
Cabanillas, Pablo Alejandro   +2 more
openaire   +8 more sources

Climbing since the early Miocene: The fossil record of Paullinieae (Sapindaceae). [PDF]

open access: yesPLoS ONE, 2021
Paullinieae are a diverse group of tropical and subtropical climbing plants that belong to the soapberry family (Sapindaceae). The six genera in this tribe make up approximately one-quarter of the species in the family, but a sparse fossil record limits ...
Nathan A Jud   +4 more
doaj   +2 more sources

Cambial variations of Piper (Piperaceae) in Taiwan [PDF]

open access: yesBotanical Studies, 2017
Background Cambial variations in lianas of Piperaceae in Taiwan have not been studied previously. The stem anatomy of seven Piper species from Taiwan was examined to document cambial variations and better distinguish the species when leaves are absent ...
Sheng-Zehn Yang, Po-Hao Chen
doaj   +2 more sources

Stem anatomy at various developmental stages of secondary growth in Turbina corymbosa (Convolvulaceae) [PDF]

open access: yesPlant Ecology and Evolution, 2018
Background – Population growth of lianas in the tropical forest is credited to their ability of CO2 sequestration and efficiency of the narrow stems to supply water required for the amount of foliage it bears. Turbina corymbosa (L.) Raf.
Manoj Lekhak   +3 more
doaj   +3 more sources

Anatomia do caule de Serjania corrugata Radlk. (Sapindaceae) Stem anatomy of Serjania corrugata Radlk. (Sapindaceae)

open access: yesActa Botânica Brasílica, 2007
A estrutura anatômica do caule adulto de S. corrugata foi detalhada, com o objetivo de contribuir para a identificação de caules de lianas usadas comercialmente.
Gabriel Uriel Cruz Araújo   +1 more
doaj   +1 more source

Cambial Variants in the Family Menispermaceae in Taiwan

open access: yesAmerican Journal of Plant Sciences, 2016
Anatomical data regarding the climbing modes and cambial variants of the stem transverse section in the Menispermaceae in Taiwan are lacking. Here, we examined the climbing modes and anomalous structure of climber stems in this family. Reviewing the previous reports of cambial variants in angiosperm liana families, a list of angiosperm liana families ...
Sheng-Zehn Yang, Po-Hao Chen
openaire   +2 more sources

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