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Finish line plant–insect interactions mediated by insect feeding mode and plant interference: a case study of Brassica interactions with diamondback moth and turnip aphid. / Soufbaf, Mahmoud; Fathipour, Yaghoub (Corresponding author); Harvey, Jeffrey A.; Hui, Cang.

In: Insect Science, Vol. 25, No. 4, 2018, p. 690-702.

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@article{46cd56cdd9974982b14e44138611bce2,
title = "Finish line plant–insect interactions mediated by insect feeding mode and plant interference: a case study of Brassica interactions with diamondback moth and turnip aphid",
abstract = "There are gaps in our understanding of plant responses under different insect phytophagy modes and their subsequent effects on the insect herbivores’ performance at late season. Here we compared different types of insect feeding by an aphid, Lipaphis erysimi, and a lepidopteran, Plutella xylostella, and how this affected defensive metabolites in leaves of 2 Brassica species when plants gain maturity. Thiocyanate concentrations after P. xylostella and L. erysimi feeding activities were the same. Total phenolics was higher after the phloem feeder feeding than the folivore activity. The plants compensatory responses (i.e., tolerance) to L. erysimi feeding was significantly higher than the responses to P. xylostella. This study showed that L. erysimi had higher carbon than P. xylostella whereas nitrogen in P. xylostella was 1.42 times that in L. erysimi. Population size of the phloem feeder was not affected by plant species or insect coexistence. However, there was no correlation between plant defensive metabolites and both insects’ population size and biomass. This suggests that plant root biomass and tolerance index after different insect herbivory modes are not necessarily unidirectional. Importantly, the interaction between the folivore and the phloem feeder insects is asymmetric and the phloem feeder might be a trickier problem for plants than the folivore. Moreover, as both plants’ common and special defenses decreased under interspecific interference, we suggest that specialist insect herbivores can be more challenged in ecosystems in which plants are not involved in interspecific interference.",
keywords = "glucosinolates, herbivory mode, plant resistance, stoichiometric analysis, tolerance, international",
author = "Mahmoud Soufbaf and Yaghoub Fathipour and Harvey, {Jeffrey A.} and Cang Hui",
note = "6477, TE;",
year = "2018",
doi = "10.1111/1744-7917.12439",
language = "English",
volume = "25",
pages = "690--702",
journal = "Insect Science",
issn = "1672-9609",
publisher = "Wiley-Blackwell",
number = "4",

}

RIS

TY - JOUR

T1 - Finish line plant–insect interactions mediated by insect feeding mode and plant interference: a case study of Brassica interactions with diamondback moth and turnip aphid

AU - Soufbaf, Mahmoud

AU - Fathipour, Yaghoub

AU - Harvey, Jeffrey A.

AU - Hui, Cang

N1 - 6477, TE;

PY - 2018

Y1 - 2018

N2 - There are gaps in our understanding of plant responses under different insect phytophagy modes and their subsequent effects on the insect herbivores’ performance at late season. Here we compared different types of insect feeding by an aphid, Lipaphis erysimi, and a lepidopteran, Plutella xylostella, and how this affected defensive metabolites in leaves of 2 Brassica species when plants gain maturity. Thiocyanate concentrations after P. xylostella and L. erysimi feeding activities were the same. Total phenolics was higher after the phloem feeder feeding than the folivore activity. The plants compensatory responses (i.e., tolerance) to L. erysimi feeding was significantly higher than the responses to P. xylostella. This study showed that L. erysimi had higher carbon than P. xylostella whereas nitrogen in P. xylostella was 1.42 times that in L. erysimi. Population size of the phloem feeder was not affected by plant species or insect coexistence. However, there was no correlation between plant defensive metabolites and both insects’ population size and biomass. This suggests that plant root biomass and tolerance index after different insect herbivory modes are not necessarily unidirectional. Importantly, the interaction between the folivore and the phloem feeder insects is asymmetric and the phloem feeder might be a trickier problem for plants than the folivore. Moreover, as both plants’ common and special defenses decreased under interspecific interference, we suggest that specialist insect herbivores can be more challenged in ecosystems in which plants are not involved in interspecific interference.

AB - There are gaps in our understanding of plant responses under different insect phytophagy modes and their subsequent effects on the insect herbivores’ performance at late season. Here we compared different types of insect feeding by an aphid, Lipaphis erysimi, and a lepidopteran, Plutella xylostella, and how this affected defensive metabolites in leaves of 2 Brassica species when plants gain maturity. Thiocyanate concentrations after P. xylostella and L. erysimi feeding activities were the same. Total phenolics was higher after the phloem feeder feeding than the folivore activity. The plants compensatory responses (i.e., tolerance) to L. erysimi feeding was significantly higher than the responses to P. xylostella. This study showed that L. erysimi had higher carbon than P. xylostella whereas nitrogen in P. xylostella was 1.42 times that in L. erysimi. Population size of the phloem feeder was not affected by plant species or insect coexistence. However, there was no correlation between plant defensive metabolites and both insects’ population size and biomass. This suggests that plant root biomass and tolerance index after different insect herbivory modes are not necessarily unidirectional. Importantly, the interaction between the folivore and the phloem feeder insects is asymmetric and the phloem feeder might be a trickier problem for plants than the folivore. Moreover, as both plants’ common and special defenses decreased under interspecific interference, we suggest that specialist insect herbivores can be more challenged in ecosystems in which plants are not involved in interspecific interference.

KW - glucosinolates

KW - herbivory mode

KW - plant resistance

KW - stoichiometric analysis

KW - tolerance

KW - international

U2 - 10.1111/1744-7917.12439

DO - 10.1111/1744-7917.12439

M3 - Article

VL - 25

SP - 690

EP - 702

JO - Insect Science

JF - Insect Science

SN - 1672-9609

IS - 4

ER -

ID: 6206011