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CONICET Digital
Article . 2020
License: CC BY NC SA
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Exomorfología y anatomía de la agalla foliar desarrollada en Geoffroea decorticans (Fabaceae) inducida por ácaros eriófidos

Authors: Corro Molas, Barbara Mariana; Martinez, Juan Jose; Porta, Andrés Osvaldo; Agudelo, Ignacio Jorge;

Exomorfología y anatomía de la agalla foliar desarrollada en Geoffroea decorticans (Fabaceae) inducida por ácaros eriófidos

Abstract

Las agallas son crecimientos anormales en los órganos de las plantas provocados por organismos inductores como bacterias, hongos o animales. En las hojas del chañar, Geoffroea decorticans (Gill. ex Hook. et Arn.) Burkart, se desarrollan agallas inducidas por ácaros eriófidos. El objetivo de este trabajo fue describir aspectos morfoanatómicos e histoquímicos de la ácaroagalla madura e identificar al inductor. Las agallas fueron colectadas durante los años 2015-2016 en Santa Rosa y Anguil (La Pampa, Argentina). Se realizaron análisis anatómicos e histoquímicos de hojas con y sin agallas. La estructura foliar sin agalla es isolateral con escaso parénquima esponjoso entre los parénquimas en empalizada. La ácaroagalla estudiada tiene forma de saco que se extiende en un cuello angosto con un ostiolo, se proyecta hacia ambas superficies foliares y es unicameral. El revestimiento externo está formado por la epidermis (adaxial y abaxial) e hipodermis. El cuerpo de la agalla está constituido por parénquima fotosintético y la vaina tanífera. El revestimiento interno está conformado por el tejido nutritivo. El parénquima, principalmente el esponjoso, es el tejido que experimenta los cambios más relevantes. La ácaroagalla es inducida por una especie del género Aceria (Eriophyidae). Se reporta la presencia de ácaros tarsonémidos como fauna asociada.

Plant galls are abnormal growths in plant organs caused by inducing organisms such as bacteria, fungi or metazoans. On the leaves of “chañar”, Geoffroea decorticans (Gill. ex Hook. et Arn.) Burkart, eryiophyid mites induce galls. The aim of this work was to describe morpho-anatomical and histochemical aspects of the mature mite gall and identify the inducer. The galls were collected during 2015-2016 in Santa Rosa and Anguil (La Pampa, Argentina). Anatomical and histochemical analysis of gall-free and galled leaves was performed. The leaf structure without gall is isolateral with scarce spongy parenchyma between both palisade parenchymas. The studied gall is sac-shaped extending into a thin neck with an ostiole, the gall projects to both foliar surfaces and it is unilocular. Externally, the gall is covered by the epidermis (adaxial and abaxial) and hypodermis. The gall body is composed of photosynthetic parenchyma and tanniferous sheat. The gall chamber is covered internally by the nutritional tissue. The parenchyma, mainly spongy one is the tissue that exhibits the most relevant changes. The studied mite gall is induced by a species of the genus Aceria (Eriophyidae). A tarsonemid mite is reported as gall associated fauna.

Fil: Martinez, Juan Jose. Universidad Nacional de la Pampa. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Confluencia; Argentina

Fil: Porta, Andrés Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina

Fil: Agudelo, Ignacio Jorge. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Farmacología. Cátedra de Farmacobótanica; Argentina

Fil: Corro Molas, Barbara Mariana. Universidad Nacional de la Pampa. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Naturales; Argentina

Country
Argentina
Keywords

SF191-275, Agriculture (General), AGALLA, Eriophyidae, ACARI, CHAÑAR, Tarsonemidae, SF1-1100, S1-972, Animal culture, https://purl.org/becyt/ford/1.6, agalla, Cattle, https://purl.org/becyt/ford/1, ERIOPHYIDAE, Acari, chañar

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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