简介:Thispaperwastoinvestigatebasicpropertiesofmicro/nanofibrilsfrompoplarwithahighpressurehomogenizer.Theirbasicpropertiesweretestedbylaserparticlesizeanalyzer,scanningelectronmicroscopy(SEM)andX-raydiffractometer(XRD).Thetestresultsshowedthatifthefiberslurrymovedfrom20to40circulationsthroughthehomogenizer,for10%ofthemicro/nanofibrils,theparticlesizewasreducedfrom1.2μmto160nmanditssurfaceareaperunitvolumewasincreasedfrom1.63×104...
简介:WecollectedacornsfromselectedQuercusroburandQuercuspetraeamothertreesgrowingatstationswithdifferentdepthstothewatertable.Weproducedpairsofmicro-cuttingsfromthesesingleacorns.Theobtainedpairsofcuttingsrepresentedphenotypesofhighsimilarityaccordingtophotosyntheticparameters.Thesepairsofcuttingswereusedtotesttheplasticityofresponsetocontrastingwaterregimes.Foreachpair,onecuttingwassubmittedtodroughtandtheotherwassubmittedtowaterlogging.Droughtresponsewasrecordedaccordingtogasexchangetraits(stomatalclosureandwateruseefficiency).TheresponsetowaterloggingwasrecordedaccordingtothecapacitytoformhypertrophiedlenticelsandtomaintaintheCO2assimilationrate.Intermediaryphenotypespresentingbothhighwateruseefficiencyandthecapacitytodevelophypertrophiedlenticelswereexpected.