Woody Polygonaceae from Brazil: new species and a new interpretation

Brandbyge, John

doi:10.1111/j.1756-1051.1990.tb01763.x

Cited by 12 publications

(7 citation statements)

References 2 publications

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“…Triplaris Loefl. (Polygonaceae) is a myrmecophytic genus of pioneer plants comprised of 18 species of trees, distributed from Mexico to Bolivia and Brazil (Brandbyge 1986 , 1990 ). A conspicuous feature of the genus is that each plant individual harbors one ant colony in their hollow stems (Schremmer 1984 ; Sanchez 2015 ).…”

Section: Methodsmentioning

confidence: 99%

Neotropical ant-plant Triplaris americana attracts Pseudomyrmex mordax ant queens during seedling stages

Torres

Sánchez

2017

Insect. Soc.

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The association between the myrmecophyte Triplaris and ants of the genus Pseudomyrmex is an often-reported example of mutualism in the Neotropics. The ants colonize the hollow stems of their hosts, and in exchange, the plants benefit from a reduced degree of herbivory. The previous studies have shown that workers can discriminate their host from other plants, including a closely related species. Little is known about how queens locate their host during the colonization process, but it has been suggested that host recognition is mediated by volatiles. Since queens of Pseudomyrmex mordax colonize their hosts during the seedling stage, we hypothesized that queens would discriminate leaves of seedlings from adult plants. To evaluate our hypothesis, we used a two-sided olfactometer, to test the preference of queens towards different leaf and plant ages of Triplaris americana. Virgin queens of Pseudomyrmex mordax preferred seedlings over adult plants, as well as plant leaves over empty controls, showing no discrimination for leaf age. Our results suggest that the volatiles virgin queens recognize are either produced or are more abundant at the early growing stage of the host when colonization is crucial for the host's survival.

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Section: Methodsmentioning

confidence: 99%

Neotropical ant-plant Triplaris americana attracts Pseudomyrmex mordax ant queens during seedling stages

Torres

Sánchez

2017

Insect. Soc.

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“…In this study the phylogenies of both, Triplaris and Pseudomyrmex were reconstructed using multiple gene regions as well as individuals. Twelve species of Triplaris were sampled (of the 18 described; [ 29 , 30 ]), for a total of 32 individuals. Several individuals per species were included, especially for those that have wide distribution ranges.…”

Section: Methodsmentioning

confidence: 99%

“…All species occur in lowland habitats from sea level to 2000 m in altitude and are considered important components in all stages of secondary succession [ 29 ]. The taxonomy of the genus was revised by Brandbyge [ 29 ], where he reduced the 73 taxa described to 18 species (and one subspecies; [ 29 , 30 ]), but no phylogenetic studies have addressed the interspecific relationships of Triplaris to date. A conspicuous feature of all species in Triplaris is the hollow stems that harbor ants ( Fig 1 ).…”

Section: Introductionmentioning

confidence: 99%

Fidelity and Promiscuity in an Ant-Plant Mutualism: A Case Study of Triplaris and Pseudomyrmex

Sánchez

2015

PLoS ONE

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The association between the myrmecophyte Triplaris and ants of the genus Pseudomyrmex is an often-reported example of mutualism but no molecular studies have examined this association to date. In this study, the interspecific relationships of Triplaris were reconstructed using five molecular markers (two chloroplast and three nuclear), and the relationships of the associated Pseudomyrmex using two molecular regions (one mitochondrial and one nuclear). A data set including all known collections of plant hosts and resident ants was also compiled. The pattern of distribution of both organisms reveals that there are varying degrees of host specificity; most ants show broader host usage (promiscuous) but one species (P. dendroicus) is faithful to a single species of Triplaris. In most ant-plant interactions, host usage is not specific at the species level and preferences may result from geographical or ecological sorting. The specificity of P. dendroicus could be based on chemical recognition of the host they were raised on.

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“…Among the genera treated by Bawa, was Triplaris Loefl. (Polygonaceae), a collection of 18 species of fast-growing trees best known for their symbiosis with ants (Brandbyge 1986, Brandbyge 1990, Burke and Sanchez 2011, Sanchez 2015. Triplaris has consistently been characterized as dioecious.…”

Section: Introductionmentioning

confidence: 99%

Notes on the floral sexuality of some species of the tree genus <i>Triplaris</i> (Polygonaceae)

Koenemann

2022

Caldasia

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The majority of angiosperms (~94 %) are synoecious, with only a small minority separating the production of the two gamete types onto different biological individuals (dioecy). For many plant species, however, reproductive systems and habits are not well documented. This is particularly true of tropical trees, which, despite their conspicuity, are poorly understood. Plants in the genus Triplaris have been consistently described as strictly dioecious. After morphologic analysis using a dissecting microscope, here I present a number of fully-formed perfect (hermaphroditic) flowers observed on Triplaris herbaria specimens.

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Woody Polygonaceae from Brazil: new species and a new interpretation

Cited by 12 publications

References 2 publications

Neotropical ant-plant Triplaris americana attracts Pseudomyrmex mordax ant queens during seedling stages

Neotropical ant-plant Triplaris americana attracts Pseudomyrmex mordax ant queens during seedling stages

Fidelity and Promiscuity in an Ant-Plant Mutualism: A Case Study of Triplaris and Pseudomyrmex

Notes on the floral sexuality of some species of the tree genus <i>Triplaris</i> (Polygonaceae)

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