Developmental heterophylly in the genus Heteranthera (Pontederiaceae)

Horn, Charles N.

doi:10.1016/0304-3770(88)90014-9

Cited by 12 publications

(14 citation statements)

References 11 publications

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“…These characters seem to be related to the adaptive shift to a completely aquatic lifestyle in the family and an adaptation to changes in water level. The leaves of Pontederiaceae are characteristically dimorphic, being morphologically divided into sessile and petiolate leaves (Horn 1988). Leaf dimorphism is widely distributed across the Embryopsida, being generally related to changes in function (e.g.…”

Section: Discussionmentioning

confidence: 99%

“…Sessileleaves represent the plesiomorphic state and are the first ones produced after seed germination. They vary in number from 5–many per plant and allow plants to become established in a submersed habitat (Horn 1988). The sessile leaves can range from early-deciduous to persistent in mature plants, while in some species of Heteranthera s.l.…”

Section: Discussionmentioning

confidence: 99%

“…The sessile leaves can range from early-deciduous to persistent in mature plants, while in some species of Heteranthera s.l. , petiolate leaves are never or very rarely produced (Horn 1985, 1988; Eckenwalder and Barrett 1986). The petiolate leaves are produced at posteriori and are considered the mature leaf type in the family.…”

Section: Discussionmentioning

confidence: 99%

“…Eichhornia Kunth, Heteranthera Ruiz & Pavón, Monochoria C.Presl and Pontederia L.) and possesses ca. 45 species (Lowden 1973; Horn 1985; Cook 1989; Pellegrini 2017a; Pellegrini and Horn 2017). Pontederiaceae has a pantropical distribution, with the Neotropical region as its diversity centre, where ca.…”

Section: Introductionmentioning

confidence: 99%

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Total evidence phylogeny of Pontederiaceae (Commelinales) sheds light on the necessity of its recircumscription and synopsis of Pontederia L.

Pellegrini¹,

Horn²,

Almeida³

2018

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A total evidence phylogeny for Pontederiaceae is herein presented based on new morphological and previously published molecular data. Our results led us to re-circumscribe Pontederia to include Monochoria, Pontederias.s. and the polyphyletic Eichhornia. We provide the needed ten new combinations and 16 typifications, arrange a total of 25 accepted species (six representing re-established names) in 5 new subgenera. Furthermore, we provide an identification key for the two genera accepted by us in Pontederiaceae, an identification key to the subgenera, identification keys to the species of each subgenus and commentaries on Pontederias.l., as well as for each subgenus and each species.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Total evidence phylogeny of Pontederiaceae (Commelinales) sheds light on the necessity of its recircumscription and synopsis of Pontederia L.

Pellegrini¹,

Horn²,

Almeida³

2018

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“…Heteranthera) or filiform (e.g. Isoetes) (Horn 1988;Kane and Albert 1989;Lin 2002;Strand and Weisner 2001). In an extreme case, even perforated leaves are found (lace plant; Aponogeton madagascariensis), which are secondarily formed by programmed cell death (hypersensitive response) after the initial development of entire leaf laminas (Gunawardena et al 2004;Lord and Gunawardena 2011).…”

Section: Adaptation To Aquatic Habitatsmentioning

confidence: 99%

The ABA-mediated switch between submersed and emersed life-styles in aquatic macrophytes

Wanke

2011

J Plant Res

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Hydrophytes comprise aquatic macrophytes from various taxa that are able to sustain and to complete their lifecycle in a flooded environment. Their ancestors, however, underwent adaptive processes to withstand drought on land and became partially or completely independent of water for sexual reproduction. Interestingly, the step backwards into the high-density aquatic medium happened independently several times in numerous plant taxa. For flowering plants, this submersed life-style is especially difficult as they need to erect their floral organs above the water surface to be pollinated. Moreover, fresh-water plants evolved the adaptive mechanism of heterophylly, which enabled them to switch between a submersed and an emersed leaf morphology. The plant hormone abscisic acid (ABA) is a key factor of heterophylly induction in aquatic plants and is a major switch between a submersed and emersed life. The mechanisms of ABA signal perception and transduction appear to be conserved throughout the evolution of basal plants to angiosperms and from terrestrial to aquatic plants. This review summarizes the interplay of environmental factors that act through ABA to orchestrate adaptation of plants to their aquatic environment.

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Morphological and anatomical plasticity of a rare amphibious species of Eriocaulaceae (Poales, Monocotyledons)

2020

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Developmental heterophylly in the genus Heteranthera (Pontederiaceae)

Cited by 12 publications

References 11 publications

Total evidence phylogeny of Pontederiaceae (Commelinales) sheds light on the necessity of its recircumscription and synopsis of Pontederia L.

Total evidence phylogeny of Pontederiaceae (Commelinales) sheds light on the necessity of its recircumscription and synopsis of Pontederia L.

The ABA-mediated switch between submersed and emersed life-styles in aquatic macrophytes

Morphological and anatomical plasticity of a rare amphibious species of Eriocaulaceae (Poales, Monocotyledons)

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