date: 2023-05-06T03:38:35Z
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pdf:docinfo:title: Pea Aphid (Acyrthosiphon pisum) Host Races Reduce Heat-Induced Forisome Dispersion in Vicia faba and Trifolium pratense
xmp:CreatorTool: LaTeX with hyperref
Keywords: pea aphid host race; aphid saliva; phloem located defense; phloem protein; sieve element occlusion; calcium; legume; Pisum sativum; Trifolium pratense; Vicia faba
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subject: Although phloem-feeding insects such as aphids can cause significant damage to plants, relatively little is known about early plant defenses against these insects. As a first line of defense, legumes can stop the phloem mass flow through a conformational change in phloem proteins known as forisomes in response to Ca2+ influx. However, specialized phloem-feeding insects might be able to suppress the conformational change of forisomes and thereby prevent sieve element occlusion. To investigate this possibility, we triggered forisome dispersion through application of a local heat stimulus to the leaf tips of pea (Pisum sativum), clover (Trifolium pratense) and broad bean (Vicia faba) plants infested with different pea aphid (Acyrthosiphon pisum) host races and monitored forisome responses. Pea aphids were able to suppress forisome dispersion, but this depended on the infesting aphid host race, the plant species, and the age of the plant. Differences in the ability of aphids to suppress forisome dispersion may be explained by differences in the composition and quantity of the aphid saliva injected into the plant. Various mechanisms of how pea aphids might suppress forisome dispersion are discussed.
dc:creator: Maria K. Paulmann, Linus Wegner, Jonathan Gershenzon, Alexandra C. U. Furch and Grit Kunert
dcterms:created: 2023-05-06T03:32:55Z
Last-Modified: 2023-05-06T03:38:35Z
dcterms:modified: 2023-05-06T03:38:35Z
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title: Pea Aphid (Acyrthosiphon pisum) Host Races Reduce Heat-Induced Forisome Dispersion in Vicia faba and Trifolium pratense
Last-Save-Date: 2023-05-06T03:38:35Z
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pdf:docinfo:keywords: pea aphid host race; aphid saliva; phloem located defense; phloem protein; sieve element occlusion; calcium; legume; Pisum sativum; Trifolium pratense; Vicia faba
pdf:docinfo:modified: 2023-05-06T03:38:35Z
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dc:title: Pea Aphid (Acyrthosiphon pisum) Host Races Reduce Heat-Induced Forisome Dispersion in Vicia faba and Trifolium pratense
modified: 2023-05-06T03:38:35Z
cp:subject: Although phloem-feeding insects such as aphids can cause significant damage to plants, relatively little is known about early plant defenses against these insects. As a first line of defense, legumes can stop the phloem mass flow through a conformational change in phloem proteins known as forisomes in response to Ca2+ influx. However, specialized phloem-feeding insects might be able to suppress the conformational change of forisomes and thereby prevent sieve element occlusion. To investigate this possibility, we triggered forisome dispersion through application of a local heat stimulus to the leaf tips of pea (Pisum sativum), clover (Trifolium pratense) and broad bean (Vicia faba) plants infested with different pea aphid (Acyrthosiphon pisum) host races and monitored forisome responses. Pea aphids were able to suppress forisome dispersion, but this depended on the infesting aphid host race, the plant species, and the age of the plant. Differences in the ability of aphids to suppress forisome dispersion may be explained by differences in the composition and quantity of the aphid saliva injected into the plant. Various mechanisms of how pea aphids might suppress forisome dispersion are discussed.
pdf:docinfo:subject: Although phloem-feeding insects such as aphids can cause significant damage to plants, relatively little is known about early plant defenses against these insects. As a first line of defense, legumes can stop the phloem mass flow through a conformational change in phloem proteins known as forisomes in response to Ca2+ influx. However, specialized phloem-feeding insects might be able to suppress the conformational change of forisomes and thereby prevent sieve element occlusion. To investigate this possibility, we triggered forisome dispersion through application of a local heat stimulus to the leaf tips of pea (Pisum sativum), clover (Trifolium pratense) and broad bean (Vicia faba) plants infested with different pea aphid (Acyrthosiphon pisum) host races and monitored forisome responses. Pea aphids were able to suppress forisome dispersion, but this depended on the infesting aphid host race, the plant species, and the age of the plant. Differences in the ability of aphids to suppress forisome dispersion may be explained by differences in the composition and quantity of the aphid saliva injected into the plant. Various mechanisms of how pea aphids might suppress forisome dispersion are discussed.
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pdf:docinfo:creator: Maria K. Paulmann, Linus Wegner, Jonathan Gershenzon, Alexandra C. U. Furch and Grit Kunert
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dc:subject: pea aphid host race; aphid saliva; phloem located defense; phloem protein; sieve element occlusion; calcium; legume; Pisum sativum; Trifolium pratense; Vicia faba
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meta:keyword: pea aphid host race; aphid saliva; phloem located defense; phloem protein; sieve element occlusion; calcium; legume; Pisum sativum; Trifolium pratense; Vicia faba
Author: Maria K. Paulmann, Linus Wegner, Jonathan Gershenzon, Alexandra C. U. Furch and Grit Kunert
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