Orobanche ballotae A. Pujadas (Oronbanchaceae), especie nueva

Salvà, Antonio J. Pujadas

doi:10.24310/abm.v22i0.8603

Cited by 8 publications

(3 citation statements)

References 2 publications

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“…Orobanche ballotae is a non-weedy parasitic plant which has only recently been separated from O. minor (Pujadas-Salvá, 1997). Both O. ballotae and O. minor responded to GR24 strongly.…”

Section: Discussionmentioning

confidence: 99%

The role of strigolactones in host specificity ofOrobancheandPhelipancheseed germination

2010

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Strigolactones are apocarotenoids regulating shoot branching. They are also known to be exuded by plant roots at very low concentrations, stimulating hyphal branching of arbuscular mycorrhizal fungi and germination of root parasitic weed seeds. We show that strigolactones play a major role in host specificity ofOrobancheandPhelipanche(the broomrapes) seed germination. This observation confirms that host-derived germination stimulants are an important component determining the host specificity of these parasitic plants. Weedy broomrape species were less specialized in germination requirements than the non-weedy species except forO. cumanaandO. foetidavar.broteri. Similar results were obtained with the root exudates. Some species, such asP. aegyptiacaandO. minor, showed a broad spectrum of host specificity in terms of seed germination, which was stimulated by exudates from the majority of species tested, whereas others, such asO. cumana,O. hederaeandO. densiflora, were highly specific. Some species, such asO. minor,P. aegyptiacaandP. nana, were responsive to the three strigolactones studied, whereas others were induced by only one of them, or did not respond to them at all. The synthetic strigolactone analogue GR24, generally used as a standard for germination tests, was not effective on someOrobancheandPhelipanchespecies. Seeds of some species that did not respond to GR24 were induced to germinate in the presence of fabacyl acetate or strigol, confirming the role of strigolactones in host specificity.

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“…Orobanche ballotae is a non-weedy parasitic plant which has only recently been separated from O. minor (Pujadas-Salvá, 1997). Both O. ballotae and O. minor responded to GR24 strongly.…”

Section: Discussionmentioning

confidence: 99%

The role of strigolactones in host specificity ofOrobancheandPhelipancheseed germination

2010

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“…100 species, 30±35 % of which are present in the Iberian Peninsula and the Balearic Islands. Thirty-two taxa were recognized by Foley (2001), although the ¯oristic contributions of Pujadas and Lora Gonza Âlez (1995, 1996, , Pujadas (1997Pujadas ( , 2000, Pujadas and Go Âmez (2000) have indicated that there are 34 taxa (Pujadas, 2002).…”

Section: Introductionmentioning

confidence: 99%

Micromorphological Studies on Seeds of Orobanche Species from the Iberian Peninsula and the Balearic Islands, and Their Systematic Significance

Plaza

Fernández²,

Juan³

et al. 2004

Annals of Botany

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“…A similar situation occurs within the aromatic weedy species. O. crenata is a typical polyphagous species ( Parker, 2009 ), O. lutea ranges from monophagy to oligophagy ( Teryokhin et al, 1993 ; Piwowarczyk and Krajewski, 2014 ), while the non-weedy O. ballotae is strictly monophagous ( Pujadas Salva, 1997 ) ( Figure 6 ).…”

Section: Discussionmentioning

confidence: 99%

Floral Volatiles in Parasitic Plants of the Orobanchaceae. Ecological and Taxonomic Implications

et al. 2016

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The holoparasitic broomrapes, Orobanche spp. and Phelipanche spp. (Orobanchaceae), are root parasites that completely depend on a host plant for survival and reproduction. There is considerable controversy on the taxonomy of this biologically and agronomically important family. Flowers of over 25 parasitic Orobanchaceae and a number of close, parasitic and non-parasitic, relatives emitted a complex blend of volatile organic compounds (VOCs), consisting of over 130 VOCs per species. Floral VOC blend-based phylogeny supported the known taxonomy in internal taxonomic grouping of genus and eliminated the uncertainty in some taxonomical groups. Moreover, phylogenetic analysis suggested separation of the broomrapes into two main groups parasitizing annual and perennial hosts, and for the annual hosts, into weedy and non-weedy broomrapes. We conclude that floral VOCs are a significant tool in species identification and possibly even in defining new species and can help to improve controversial taxonomy in the Orobanchaceae.

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Orobanche ballotae A. Pujadas (Oronbanchaceae), especie nueva

Abstract: Se describe para el S de la Península Ibérica una especie nueva del genero Orobanche L., de la sección Orobanche, Grex Minores G. Beck. Se destacan sus caracteres morfológicos que permiten diferenciarlo claramente de O. minor Sm., especie con la que presenta ciertas semejanzas.

Cited by 8 publications

References 2 publications

The role of strigolactones in host specificity ofOrobancheandPhelipancheseed germination

The role of strigolactones in host specificity ofOrobancheandPhelipancheseed germination

Micromorphological Studies on Seeds of Orobanche Species from the Iberian Peninsula and the Balearic Islands, and Their Systematic Significance

Floral Volatiles in Parasitic Plants of the Orobanchaceae. Ecological and Taxonomic Implications

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