The pollen of Caesalpinia pyramidalis Tul. is toxic to honeybees (Apis mellifera)

Melo, Igor Ricardo Batista Vieira de; Lages, Mateus Cardoso da Costa; Santos, Diego Passos dos; Maracajá, Patrício Borges; Rodrigues, Rodrigo Alboim de Paiva Fernandes; Soto-Blanco, Benito

doi:10.1007/s11829-013-9254-3

Cited by 9 publications

(3 citation statements)

References 26 publications

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“…Several studies have reported on pollen having toxic properties or preventing the development of bees (Cristina et al , ; Praz et al , ; de Mesquita et al , ; Sedivy et al , ; Junior et al , ; de Melo et al , ; Bukovinszky et al , ; Vanderplanck et al , ). However, despite the growing number of studies documenting the presence of defence compounds in pollen and the toxic properties of some pollens, few studies have made a direct link between the presence of defence compounds in pollen and a detrimental effect on pollinators.…”

Section: Nature and Occurrence Of Pollen Defencementioning

confidence: 99%

Defence compounds in pollen: why do they occur and how do they affect the ecology and evolution of bees?

Rivest

Forrest

2019

New Phytologist

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Pollen plays two important roles in angiosperm reproduction, serving as a vehicle for the plant's male gametes, but also, in many species, as a lure for pollen-feeding animals. Despite being an important food source for many pollinators, pollen often contains compounds with known deterrent or toxic properties, as documented in a growing number of studies. Here we review these studies and discuss the role of pollen defensive compounds in the coevolutionary relationship between plants and bees, the preeminent consumers of pollen. Next, we evaluate three hypotheses that may explain the existence of defensive compounds in pollen. The pleiotropy hypothesis, which proposes that defensive compounds in pollen merely reflect physiological spillover from other plant tissues, is contradicted by evidence from several species. Although plants may experience selection to defend pollen against poor-quality pollinators, we also find only partial support for the protectionagainst-pollen-collection-hypothesis. Finally, pollen defences might protect pollen from colonisation by antagonistic microorganisms (antimicrobial hypothesis), although data to evaluate this idea are scarce. Further research on the effects of pollen defensive compounds on pollinators, pollen thieves, and pollen-colonising microbes will be needed to understand why many plants have chemically defended pollen, and the consequences of those defences for pollen consumers.

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Section: Nature and Occurrence Of Pollen Defencementioning

confidence: 99%

Defence compounds in pollen: why do they occur and how do they affect the ecology and evolution of bees?

Rivest

Forrest

2019

New Phytologist

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“…19 Its pollen has been proven to be toxic to honeybees (Apis melifera). 15 In northeastern Brazil, the occurrence of malformations, embryonic death, and poor fetal development in ruminants has been associated with the ingestion of the leaves of Senegalia (Mimosa) tenuiflora. 8,17 However, in the state of Rio Grande do Norte, also located in the Brazilian semiarid region, some outbreaks of malformations in small ruminants were observed on farms where S. tenuiflora trees were absent (Câmara ACL, Riet-Correa F, unpublished data).…”

Section: Introductionmentioning

confidence: 99%

Embryotoxic effects of Poincianella (Caesalpinia) pyramidalis leaves on pregnant rats

et al. 2017

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We investigated the embryotoxic and fetotoxic effects of Poincianella pyramidalis (Tul.) L.P. Queiroz (syn. Caesalpinia pyramidalis Tul.) leaves on pregnant rats (Rattus norvegicus). Pregnant rats were divided into 4 groups: G1-fed a ration containing 5% P. pyramidalis leaves beginning on day 1 of pregnancy; G2-fed a ration containing 5% P. pyramidalis leaves commencing on day 6 of pregnancy; G3-fed a ration containing 10% P. pyramidalis leaves starting on day 6 of pregnancy; G4-control group. On day 21 of pregnancy, parameters of reproductive performance were recorded. Fetal growth was measured, and fetuses were subjected to external examination and identification of skeletal anomalies. Rations containing P. pyramidalis resulted in dead or undeveloped fetuses and reduced the number, length, and weight of the fetuses. Rations also increased postimplantation losses and the frequency of skeletal anomalies. Furthermore, P. pyramidalis was also responsible for dose-dependent lesions in the placentas. In conclusion, the ingestion of P. pyramidalis promotes fetal and placental damage.

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“…Porém, um estudo realizado na Bahia comprovou que a "catingueira" causa falhas reprodutivas e malformações em pequenos ruminantes (Reis et al 2016). Outros estudos relatam casos de toxicidade em moluscos e abelhas, indicando a presença de componentes tóxicos na planta (Luna et al 2005, Melo et al 2013.…”

Section: Introductionunclassified

Abortos, malformações congênitas e falhas reprodutivas espontâneas em caprinos causados na intoxicação pelas folhas da catingueira, Poincianella pyramidalis (sin. Caesalpinia pyramidalis)

et al. 2018

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RESUMO: O objetivo deste estudo foi investigar os efeitos de folhas da espécie arbórea Poincianella pyramidalis (Tul.) L.P. Queiroz como causa espontânea de abortos, malformações e falhas reprodutivas em rebanhos caprinos no semiárido brasileiro. Foram realizadas investigações epidemiológicas, avaliações clínicas de caprinos acometidos por malformações e necropsias de fetos abortados em 12 propriedades localizadas nos municípios de Gurjão e Soledade, na Paraíba, e no município de Pau dos Ferros, Rio Grande do Norte. O estudo considerou apenas as propriedades que tinham basicamente a presença de P. pyramidalis entre as plantas teratogênicas. Na propriedade localizada no município de Pau dos Ferros foi verificada a ocorrência de grande número de abortos e o nascimento de cabritos malformados, acometendo 90% das cabras gestantes. Nas 12 propriedades pertencentes aos municípios de Gurjão e Soledade na Paraíba os casos espontâneos de mortalidade embrionária, abortos e malformações acometeram 257 cabras (41,1% das cabras dos rebanhos). A artrogripose foi a principal malformação congênita observada. Exames de necropsia e histopatológico de quatro fetos acompanhados das placentas não constataram a presença de agentes infecciosos. Os casos de perda embrionária, abortos e malformações foram concentrados predominantemente nas épocas do ano em que a pastagem estava escassa, mas havia disponibilidade de P. pyramidalis nas propriedades, devido à ocorrência das chuvas da pré-estação, que não permitiu a germinação de pasto, mas a rebrotação de P. pyramidalis. Os achados desse estudo comprovam que esta planta interfere consideravelmente na eficiência reprodutiva dos rebanhos caprinos do Semiárido.

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The pollen of Caesalpinia pyramidalis Tul. is toxic to honeybees (Apis mellifera)

Cited by 9 publications

References 26 publications

Defence compounds in pollen: why do they occur and how do they affect the ecology and evolution of bees?

Defence compounds in pollen: why do they occur and how do they affect the ecology and evolution of bees?

Embryotoxic effects of Poincianella (Caesalpinia) pyramidalis leaves on pregnant rats

Abortos, malformações congênitas e falhas reprodutivas espontâneas em caprinos causados na intoxicação pelas folhas da catingueira, Poincianella pyramidalis (sin. Caesalpinia pyramidalis)

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