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240304s2024 xx |||||o 00| ||eng c |
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|a 10.1111/nph.19635
|2 doi
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|a pubmed25n1230.xml
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|a (DE-627)NLM369231988
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|a (NLM)38433329
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Netherer, Sigrid
|e verfasserin
|4 aut
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| 245 |
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|a Drought increases Norway spruce susceptibility to the Eurasian spruce bark beetle and its associated fungi
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|c 2024
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 12.04.2024
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|a Date Revised 11.12.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2024 The Authors. New Phytologist © 2024 New Phytologist Foundation.
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|a Drought affects the complex interactions between Norway spruce, the bark beetle Ips typographus and associated microorganisms. We investigated the interplay of tree water status, defense and carbohydrate reserves with the incidence of bark beetle attack and infection of associated fungi in mature spruce trees. We installed roofs to induce a 2-yr moderate drought in a managed spruce stand to examine a maximum of 10 roof and 10 control trees for resin flow (RF), predawn twig water potentials, terpene, phenolic and carbohydrate bark concentrations, and bark beetle borings in field bioassays before and after inoculation with Endoconidiophora polonica and Grosmannia penicillata. Drought-stressed trees showed more attacks and significantly longer fungal lesions than controls, but maintained terpene resin defenses at predrought levels. Reduced RF and lower mono- and diterpene, but not phenolic concentrations were linked with increased host selection. Bark beetle attack and fungi stimulated chemical defenses, yet G. penicillata reduced phenolic and carbohydrate contents. Chemical defenses did not decrease under mild, prolonged drought in our simulated small-scale biotic infestations. However, during natural mass attacks, reductions in carbon fixation under drought, in combination with fungal consumption of carbohydrates, may deplete tree defenses and facilitate colonization by I. typographus
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|a Journal Article
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|a Ips typographus
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|a Picea abies
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|a associated fungi
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|a carbohydrates
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|a host selection
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|a phenolics
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|a terpenes
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|a tree defense
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|a Terpenes
|2 NLM
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|a Phenols
|2 NLM
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|a Water
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|a 059QF0KO0R
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|a Carbohydrates
|2 NLM
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|a Lehmanski, Linda
|e verfasserin
|4 aut
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|a Bachlehner, Albert
|e verfasserin
|4 aut
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|a Rosner, Sabine
|e verfasserin
|4 aut
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|a Savi, Tadeja
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|4 aut
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|a Schmidt, Axel
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|4 aut
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|a Huang, Jianbei
|e verfasserin
|4 aut
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|a Paiva, Maria Rosa
|e verfasserin
|4 aut
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|a Mateus, Eduardo
|e verfasserin
|4 aut
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|a Hartmann, Henrik
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|4 aut
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|a Gershenzon, Jonathan
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 242(2024), 3 vom: 04. Mai, Seite 1000-1017
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnas
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| 773 |
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|g volume:242
|g year:2024
|g number:3
|g day:04
|g month:05
|g pages:1000-1017
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|u http://dx.doi.org/10.1111/nph.19635
|3 Volltext
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