Variation in Seed Dormancy and Storage Behavior of Three Liana Species of Derris (Fabaceae, Faboideae) in Sri Lanka and Ecological Implications

Jayasuriya, K.M.G. Gehan; Baskin, Jerry M.; Baskin, Carol C.; Fernando, M. Thilina R.

doi:10.3923/rjss.2012.1.18

Cited by 23 publications

(13 citation statements)

References 24 publications

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“…Comparative seed-coat anatomical studies are needed to better understand dormancy vs. nondormancy in seeds of Bauhinia, Calliandra and Erythrina species. However, the three Derris species (D. parvifolia, D. scandens and D. trifoliata) included in our study also differed in kind of dormancy: ND, PY and PD, respectively, the ecological significance of which has been discussed by Jayasuriya et al (2012a).…”

Section: Discussionmentioning

confidence: 95%

Seed dormancy and storage behaviour in tropical Fabaceae: a study of 100 species from Sri Lanka

et al. 2013

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Seeds of legumes are generally considered to have physical dormancy and to be orthodox, but most seed biologists are unaware of the various kinds and combinations of dormancy and storage behaviour in seeds of this family. The aim of our study was to document the dormancy and storage behaviour of seeds of 100 native and introduced tropical Fabaceae species in Sri Lanka and classify them into germination/storage behaviour categories. Moisture content (MC) was , 16% for fresh seeds of 94 species and . 29% for those of six. Seeds of these six species had low tolerance for desiccation and for low temperatures. Thus, seeds of six species are non-orthodox and 94 species orthodox. Nine of the 100 species were non-dormant, and 2, 3 and 86 had physiological, physiological epicotyl and physical dormancy, respectively. Six germination/storage behaviour categories were identified among the 100 species. However, as in extratropical regions of the world, orthodox storage behaviour and physical dormancy are characteristic of seeds of the majority of species of Fabaceae in tropical Sri Lanka.

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Section: Discussionmentioning

confidence: 95%

Seed dormancy and storage behaviour in tropical Fabaceae: a study of 100 species from Sri Lanka

et al. 2013

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“…The wings are presumed to be a general adaptation to wind dispersal (Hu & al., 2000), though they are generally narrow (not more than 15 mm wide, Sirichamorn & al., 2012a). However, the thinness, papery texture and low mass of the Derris-like pods, as mentioned in Jayasuriya & al. (2012), indicates that probably the complete pod acts as wing.…”

Section: Fig 3cmentioning

confidence: 87%

“…& Adema) and D. trifoliata. Jayasuriya & al. (2012) reported that the pods are buoyant and survive sea water.…”

Section: Fig 3cmentioning

confidence: 99%

Molecular and morphological phylogenetic reconstruction reveals a new generic delimitation of Asian Derris (Fabaceae): Reinstatement of Solori and synonymisation of Paraderris with Derris

Sirichamorn

Adema

Roos

et al. 2014

TAXON

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The genus Derris is a problematic taxon within tribe Millettieae, because of the various generic circumscriptions proposed by different authors. Previous molecular phylogenetic studies proved Derris s.l. to be polyphyletic and thus unacceptable as a taxon. Moreover, the most recent circumscription of Derris s.str. was also not monophyletic. In this study, 29 qualitative morphological characters were analyzed together with the molecular data of our earlier studies. The combined datasets confirmed the monophyly of Solori (also known as Brachypterum) and showed it to be distinct at the generic level with the following synapomorphies: presence of stipellae, more than five flowers per brachyblast, tubular and (or) lobed floral disk, seven to twelve ovules and one‐winged pods with obvious seed chambers when dry. Paraderris appeared to be a well‐supported monophyletic group, but nested within Derris s.str. In order to maintain the monophyly of Derris s.str., Paraderris is synonymised with Derris s.str., which broadens the generic circumscription for Derris s.str. This Derris s.str. only has two synapomorphies, the liana habit and two‐winged pods. Other morphological characters used for previous generic circumscriptions of Derris s.str. appeared to be based on combinations of plesiomorphies. No infrageneric classification of Derris s.str. will be provided, because of low support for clades and lack of obvious apomorphies for several clades. Taxonomic treatment and nomenclatural changes are presented where necessary.

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“…En este trabajo y similar a lo registrado por Figliolia (1988), encontramos que las semillas de A. cearensis se comportaron como ortodoxas ya que toleraron la desecación a contenidos de humedad del 6% y su viabilidad (96%) se mantuvo luego de ser almacenadas a -18°C durante 3 y 12 meses. Este resultado coincide con los publicados por Jayasuriya et al (2012Jayasuriya et al ( , 2013 quienes mencionaron que más del 98% de las especies de Fabaceae tienen semillas ortodoxas, por lo que pueden ser conservadas a largo plazo en bancos de germoplasma. Asimismo, se ha mencionado que las semillas de algunas especies con dormición física, salen de este estado parcial o totalmente cuando son almacenadas en seco (Baskin et al, 2005;Galindez et al, 2010).…”

Section: Discussionunclassified

Dormición física y conservación ex situ de semillas de Amburana cearensis y Myroxylon peruiferum (Fabaceae)

Galíndez

Malagrina²,

Ceccato³

et al. 2015

Bol. Soc. Argent. Bot.

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Amburana cearensis y Myroxylon peruiferum son dos especies nativas del noroeste argentino que se encuentran amenazadas por la explotación de su madera, siendo prioritario establecer programas de manejo, restauración ecológica y conservación. La presencia de dormición física en semillas dificulta su utilización en dichos programas. Los objetivos de este trabajo fueron determinar la presencia de dormición física, los métodos de salida de dormición y el comportamiento durante el almacenamiento en semillas de ambas especies. Las semillas de A. cearensis presentaron dormición física y la escarificación mecánica y química fueron los mejores métodos para la salida de dormición de las semillas. Las semillas de M. peruiferum no presentaron dormición física. Las semillas de A. cearensis produjeron semillas con comportamiento ortodoxo, por lo que pueden ser conservadas en bancos de germoplasma, mientras que las semillas de M. peruiferum fueron sensibles a la desecación y al almacenamiento a -18ºC. Estos resultados serán de utilidad para el uso de estas especies en programas de producción de plantas en invernáculo, reforestación, restauración y conservación ex situ en bancos de germoplasma.

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Variation in Seed Dormancy and Storage Behavior of Three Liana Species of Derris (Fabaceae, Faboideae) in Sri Lanka and Ecological Implications

Cited by 23 publications

References 24 publications

Seed dormancy and storage behaviour in tropical Fabaceae: a study of 100 species from Sri Lanka

Seed dormancy and storage behaviour in tropical Fabaceae: a study of 100 species from Sri Lanka

Molecular and morphological phylogenetic reconstruction reveals a new generic delimitation of Asian Derris (Fabaceae): Reinstatement of Solori and synonymisation of Paraderris with Derris

Dormición física y conservación ex situ de semillas de Amburana cearensis y Myroxylon peruiferum (Fabaceae)

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