By William J. Mattson, Jean Levieux, C. Bernard-Dagan
In 1984, a brand new examine operating get together on mechanismsofwoody plant resistance opposed to bugs and pathogens(lUFROS2. 05-06) was once shaped within the overseas Union ofForestryResearchOrganizations. Thepurposeofthisworkingparty istostimulate and facilitate learn development during this areathroughenhancedcommunication between themany researchscientistsscatteredamongthevariouscountriesoftheworld. This quantity istheresultofthe first internationalsymposiumofthisworkingparty, which happened in Orleans. France on August 26-29, 1986. thank you are as a result of Institute Nationalde laRechercheAgronomique, StationdeZoologie, Forestiere, fortheir in strumental half in organizingthis symposium, and to the collage and the Cityof Orleansforgenerousfinancial aid. The intentofthis complaints is to (a) assemble adiverse array ofresearch resultsonthemechanismsofwoodyplantresistanceagainstdifferentkindsofinsects. and(b) to go looking for threadsofcommonality between those diverse plant/insect as sociationstofurtherourfundamental understandingofhowplantsdefendthemselves againstphytophagousorganisms. Theresearchpapersareorganizedintothreemaingroups. Thefirstgroupexamines plant defenses from numerous easy physiological and ecological concerns. the remainder papers, that are more often than not case studiesofplant resistance opposed to bugs. arecategorizedon the basisofinsect intimacy with host tissues: (a) hugely cellular. unfastened feeders suchas moth larvae andsawflies, and (b)poorlymobile, "attached" or imbeddedfeederssuchasaphids, scales, miners, andbarkbeetles. Eachofthesesections isfurtherorganizedonthebasisofkindoftissueattackedbytheinsects, eitherleaves orstern/shootcortexand vasculartissues. Contents Preface v members IX I. uncomplicated Physiological and Ecological concerns I. DefensiveStrategiesofWoody PlantsAgainst diverse Insect-Feeding Guilds on the subject of Plant Ecological Strategiesand IntimacyofAssociation with bugs W. J. Mattson. R. okay. Lawrence, R. A. Haack, D. A. Herms, and p. J. Charles three 2. in the direction of a UnifiedTheoryofPlant safety A. A. Berryman. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3lJ three. DefensiveResponsesofTrees inRelationtoTheirCarbon/NutrientBalance J. Tuomi, P. Niemela, F. S. Chapin,1II, J. P. Bryant, andS. Siren fifty seven four. GrowthandDifferentiation.BalanceRelationshipsinPinesAffectTheirRe. sistance to Bark Beetles(Coleoptera: Scolytidae) P. L. Lorio, Jr. seventy three five. SeasonalVariations inEnergySourcesandBiosynthesisofTerpenes in Maritime Pine C. Bernard-Dagan ninety three 6. Terpene Biosynthesis below PathologicalConditions C. Cheniclet, C. Bernard-Dagan, andG.