Infestation of Broad Bean (Vicia faba) by the Green Stink Bug (Nezara viridula) Decreases Shoot Abscisic Acid Contents under Well-Watered and Drought Conditions
The response of broad bean (Vicia faba) plants to water stress alone and in combination with green stink bug (Nezara viridula) infestation was investigated through measurement of: (1) leaf gas exchange; (2) plant hormone titres of abscisic acid (ABA) and its metabolites, and of salicylic acid (SA);...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2017-06-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | http://journal.frontiersin.org/article/10.3389/fpls.2017.00959/full |
| _version_ | 1811198076447096832 |
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| author | Luisa Ederli Cecilia Brunetti Mauro Centritto Stefano Colazza Francesca Frati Francesco Loreto Giovanni Marino Gianandrea Salerno Stefania Pasqualini |
| author_facet | Luisa Ederli Cecilia Brunetti Mauro Centritto Stefano Colazza Francesca Frati Francesco Loreto Giovanni Marino Gianandrea Salerno Stefania Pasqualini |
| author_sort | Luisa Ederli |
| collection | DOAJ |
| description | The response of broad bean (Vicia faba) plants to water stress alone and in combination with green stink bug (Nezara viridula) infestation was investigated through measurement of: (1) leaf gas exchange; (2) plant hormone titres of abscisic acid (ABA) and its metabolites, and of salicylic acid (SA); and (3) hydrogen peroxide (H2O2) content. Furthermore, we evaluated the effects of experimentally water-stressed broad-bean plants on N. viridula performance in terms of adult host–plant preference, and nymph growth and survival. Water stress significantly reduced both photosynthesis (A) and stomatal conductance (gs), while infestation by the green stink bug had no effects on photosynthesis but significantly altered partitioning of ABA between roots and shoots. Leaf ABA was decreased and root ABA increased as a result of herbivore attack, under both well-watered and water-deprived conditions. Water stress significantly impacted on SA content in leaves, but not on H2O2. However, infestation of N. viridula greatly increased both SA and H2O2 contents in leaves and roots, which suggests that endogenous SA and H2O2 have roles in plant responses to herbivore infestation. No significant differences were seen for green stink bug choice between well-watered and water-stressed plants. However, for green stink bug nymphs, plant water stress promoted significantly lower weight increases and significantly higher mortality, which indicates that highly water-stressed host plants are less suitable for N. viridula infestation. In conclusion two important findings emerged: (i) association of water stress with herbivore infestation largely changes plant response in terms of phytohormone contents; but (ii) water stress does not affect the preference of the infesting insects, although their performance was impaired. |
| first_indexed | 2024-04-12T01:24:32Z |
| format | Article |
| id | doaj.art-bf6bd5c9d1d2416ebc0736773bbfd296 |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-04-12T01:24:32Z |
| publishDate | 2017-06-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-bf6bd5c9d1d2416ebc0736773bbfd2962022-12-22T03:53:42ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2017-06-01810.3389/fpls.2017.00959257914Infestation of Broad Bean (Vicia faba) by the Green Stink Bug (Nezara viridula) Decreases Shoot Abscisic Acid Contents under Well-Watered and Drought ConditionsLuisa Ederli0Cecilia Brunetti1Mauro Centritto2Stefano Colazza3Francesca Frati4Francesco Loreto5Giovanni Marino6Gianandrea Salerno7Stefania Pasqualini8Department of Chemistry, Biology and Biotechnology, University of PerugiaPerugia, ItalyTrees and Timber Institute, National Research Council of ItalySesto Fiorentino, ItalyTrees and Timber Institute, National Research Council of ItalySesto Fiorentino, ItalyDepartment of Agricultural, Food and Forest Sciences, University of PalermoPalermo, ItalyDepartment of Agricultural, Food and Environmental Sciences, University of PerugiaPerugia, ItalyDepartment of Biology, Agriculture and Food Sciences, National Research Council of ItalyRome, ItalyTrees and Timber Institute, National Research Council of ItalySesto Fiorentino, ItalyDepartment of Agricultural, Food and Environmental Sciences, University of PerugiaPerugia, ItalyDepartment of Chemistry, Biology and Biotechnology, University of PerugiaPerugia, ItalyThe response of broad bean (Vicia faba) plants to water stress alone and in combination with green stink bug (Nezara viridula) infestation was investigated through measurement of: (1) leaf gas exchange; (2) plant hormone titres of abscisic acid (ABA) and its metabolites, and of salicylic acid (SA); and (3) hydrogen peroxide (H2O2) content. Furthermore, we evaluated the effects of experimentally water-stressed broad-bean plants on N. viridula performance in terms of adult host–plant preference, and nymph growth and survival. Water stress significantly reduced both photosynthesis (A) and stomatal conductance (gs), while infestation by the green stink bug had no effects on photosynthesis but significantly altered partitioning of ABA between roots and shoots. Leaf ABA was decreased and root ABA increased as a result of herbivore attack, under both well-watered and water-deprived conditions. Water stress significantly impacted on SA content in leaves, but not on H2O2. However, infestation of N. viridula greatly increased both SA and H2O2 contents in leaves and roots, which suggests that endogenous SA and H2O2 have roles in plant responses to herbivore infestation. No significant differences were seen for green stink bug choice between well-watered and water-stressed plants. However, for green stink bug nymphs, plant water stress promoted significantly lower weight increases and significantly higher mortality, which indicates that highly water-stressed host plants are less suitable for N. viridula infestation. In conclusion two important findings emerged: (i) association of water stress with herbivore infestation largely changes plant response in terms of phytohormone contents; but (ii) water stress does not affect the preference of the infesting insects, although their performance was impaired.http://journal.frontiersin.org/article/10.3389/fpls.2017.00959/fullABAhydrogen peroxideNezara viridulaphotosynthesissalicylic acidVicia faba |
| spellingShingle | Luisa Ederli Cecilia Brunetti Mauro Centritto Stefano Colazza Francesca Frati Francesco Loreto Giovanni Marino Gianandrea Salerno Stefania Pasqualini Infestation of Broad Bean (Vicia faba) by the Green Stink Bug (Nezara viridula) Decreases Shoot Abscisic Acid Contents under Well-Watered and Drought Conditions Frontiers in Plant Science ABA hydrogen peroxide Nezara viridula photosynthesis salicylic acid Vicia faba |
| title | Infestation of Broad Bean (Vicia faba) by the Green Stink Bug (Nezara viridula) Decreases Shoot Abscisic Acid Contents under Well-Watered and Drought Conditions |
| title_full | Infestation of Broad Bean (Vicia faba) by the Green Stink Bug (Nezara viridula) Decreases Shoot Abscisic Acid Contents under Well-Watered and Drought Conditions |
| title_fullStr | Infestation of Broad Bean (Vicia faba) by the Green Stink Bug (Nezara viridula) Decreases Shoot Abscisic Acid Contents under Well-Watered and Drought Conditions |
| title_full_unstemmed | Infestation of Broad Bean (Vicia faba) by the Green Stink Bug (Nezara viridula) Decreases Shoot Abscisic Acid Contents under Well-Watered and Drought Conditions |
| title_short | Infestation of Broad Bean (Vicia faba) by the Green Stink Bug (Nezara viridula) Decreases Shoot Abscisic Acid Contents under Well-Watered and Drought Conditions |
| title_sort | infestation of broad bean vicia faba by the green stink bug nezara viridula decreases shoot abscisic acid contents under well watered and drought conditions |
| topic | ABA hydrogen peroxide Nezara viridula photosynthesis salicylic acid Vicia faba |
| url | http://journal.frontiersin.org/article/10.3389/fpls.2017.00959/full |
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