TREHALOSE PHOSPHATE SYNTHASE11-dependent trehalose metabolism promotes Arabidopsis thaliana defense against the phloem-feeding insect Myzus persicae

Trehalose (α-D-glucopyranosyl-1,1-α-D-glucopyranoside) is a non-reducing disaccharide. It is currently thought that just trace level of trehalose was detected in plants, and that trehalose metabolic pathway was significantly related to stress tolerance. In this study, we report that expression levels of three genes with regard to trehalose metabolic pathway were measured in Arabidopsis thaliana, including AtTPS1, AtTPPA and AtTRE1. As a result, transcriptional levels of these genes are the highest in floral organ, and the expression of AtTRE1 is much more than AtTPS1 and AtTPPA. Additionally, we present transcriptional response analyses in drought and heat stresses, which have shown the changes of these genes expression from tolerance in early stress to senescence in later stress.

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Impact of loss‐of‐function of FATTY ACID DESATURASE 7 in Arabidopsis thaliana on the green peach aphid, Myzus persicae , and the cabbage aphid, Brevicoryne brassicae

Entomologia Experimentalis et Applicata ◽

10.1111/eea.13139 ◽

2022 ◽

Author(s):

Hillary D. Fischer ◽

Fiona L. Goggin

Keyword(s):

Arabidopsis Thaliana ◽

Fatty Acid ◽

Myzus Persicae ◽

Green Peach Aphid ◽

Fatty Acid Desaturase ◽

Brevicoryne Brassicae ◽

Loss Of Function ◽

Cabbage Aphid

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Transcriptional responses of Arabidopsis thaliana ecotypes with different glucosinolate profiles after attack by polyphagous Myzus persicae and oligophagous Brevicoryne brassicae

Journal of Experimental Botany ◽

10.1093/jxb/erm043 ◽

2007 ◽

Vol 58 (10) ◽

pp. 2537-2552 ◽

Cited By ~ 96

Author(s):

Anna Kuśnierczyk ◽

Per Winge ◽

Herman Midelfart ◽

W. Scott Armbruster ◽

John T. Rossiter ◽

...

Keyword(s):

Arabidopsis Thaliana ◽

Myzus Persicae ◽

Brevicoryne Brassicae ◽

Transcriptional Responses

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Suppression of Plant Defenses by a Myzus persicae (Green Peach Aphid) Salivary Effector Protein

Molecular Plant-Microbe Interactions ◽

10.1094/mpmi-01-14-0018-r ◽

2014 ◽

Vol 27 (7) ◽

pp. 747-756 ◽

Cited By ~ 112

Author(s):

Dezi A. Elzinga ◽

Martin De Vos ◽

Georg Jander

Keyword(s):

Myzus Persicae ◽

Host Plants ◽

Green Peach Aphid ◽

Salivary Protein ◽

Aphid Species ◽

Salivary Proteins ◽

Buchnera Aphidicola ◽

Complex Interactions ◽

Species Specific ◽

Phloem Feeding

The complex interactions between aphids and their host plant are species-specific and involve multiple layers of recognition and defense. Aphid salivary proteins, which are released into the plant during phloem feeding, are a likely mediator of these interactions. In an approach to identify aphid effectors that facilitate feeding from host plants, eleven Myzus persicae (green peach aphid) salivary proteins and the GroEL protein of Buchnera aphidicola, a bacterial endosymbiont of this aphid species, were expressed transiently in Nicotiana tabacum (tobacco). Whereas two salivary proteins increased aphid reproduction, expression of three other aphid proteins and GroEL significantly decreased aphid reproduction on N. tabacum. These effects were recapitulated in stable transgenic Arabidopsis thaliana plants. Further experiments with A. thaliana expressing Mp55, a salivary protein that increased aphid reproduction, showed lower accumulation of 4-methoxyindol-3-ylmethylglucosinolate, callose and hydrogen peroxide in response to aphid feeding. Mp55-expressing plants also were more attractive for aphids in choice assays. Silencing Mp55 gene expression in M. persicae using RNA interference approaches reduced aphid reproduction on N. tabacum, A. thaliana, and N. benthamiana. Together, these results demonstrate a role for Mp55, a protein with as-yet-unknown molecular function, in the interaction of M. persicae with its host plants.

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Redox responses of Arabidopsis thaliana to the green peach aphid, Myzus persicae

Molecular Plant Pathology ◽

10.1111/mpp.13054 ◽

2021 ◽

Author(s):

Junhuan Xu ◽

Carmen S. Padilla ◽

Jiamei Li ◽

Janithri Wickramanayake ◽

Hillary D. Fischer ◽

...

Keyword(s):

Arabidopsis Thaliana ◽

Myzus Persicae ◽

Green Peach Aphid

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effect of applying starch onto Arabidopsis thaliana on the feeding behaviour of Myzus persicae

Sciential - McMaster Undergraduate Science Journal ◽

10.15173/sciential.v1i1.1922 ◽

2018 ◽

pp. 9-15

Author(s):

Ishita Paliwal ◽

Caitlin Reintjes ◽

Pamela Schimmer ◽

Mary Anne Schoenhardt ◽

Jasmine Yang

Keyword(s):

Arabidopsis Thaliana ◽

Myzus Persicae ◽

Research Team ◽

Potato Starch ◽

Plant Health ◽

Defence Mechanism ◽

Starch Concentration ◽

High Starch ◽

Aphid Feeding ◽

Plant Arabidopsis Thaliana

It is well known that plant-animal systems interact in many complex ways, and each organism must adapt and develop mechanisms to best survive in their given conditions. While much is understood about the plant Arabidopsis thaliana and the aphid Myzus persicae, additional research must be conducted to gain more knowledge about the interactions between the two species. As a defence mechanism, in response to aphid feeding, A. thaliana converts sucrose into starch. Due to a lack of sucrose, there is less feeding by M. persicae. However, it has not yet been shown if these aphids are able to detect an increase in starch and recognize this as a deterrent to feeding. To test this, varying concentrations of potato starch were applied mechanically to A. thaliana (n=36) and the effect on aphid population size and plant health was analyzed. The research team found that M. persicae do not detect higher starch levels on A. thaliana as an indicator that nutrient availability on the plant is limited. Instead, it was found that on all but one plant, high starch concentration was a factor in plant deterioration. Thus, the research team advises against using starch as an organic pesticide. The findings of this study are significant as they will contribute to a better understanding of the organisms that threaten plant health, which will prove to be useful in the maintenance of various food crops.

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