TY - JOUR
AU1 - Ye, Jiayan
AU2 - Jiang, Yifan
AU3 - Veromann-Jürgenson, Linda-Liisa
AU4 - Niinemets, Ülo
AB - Key message Massive infection of Populus × petrovskiana leaves by petiole gall aphids (Pemphigus spyrothecae) significantly decreased leaf dry mass per unit area, N content per dry mass and net assimilation rate per area, and increased stomatal conductance, leaf dry mass per fresh mass, and constitutive emissions of isoprene. The infection also induced emissions of green leaf volatiles, monoterpenes and benzenoids. The emissions scaled with the infection severity as assessed by dry gall mass per leaf dry mass. Abstract Poplar spiral gall aphid (Pemphigus spyrothecae) forms galls on the petiole in poplars (Populus) and mass infesta- tions are frequent in poplar stands, but how these parasite gall infestations can affect the leaf lamina structure, photosynthetic rate and constitutive and stress volatile emissions is unknown. We investigated how the infestation by the petiole gall aphids affects lamina photosynthetic characteristics (net assimilation rate, stomatal conductance), C and N contents, and constitutive isoprene and induced volatile emissions in Populus × petrovskiana. The dry gall mass per leaf dry mass (M /M ) was used as g l a quantitative measure of the severity of gall infestation. Very high fraction of leaf biomass was invested in gall formation with M /M varying between 
TI - Petiole gall aphid (Pemphigus spyrothecae) infestation of Populus × petrovskiana leaves alters foliage photosynthetic characteristics and leads to enhanced emissions of both constitutive and stress-induced volatiles
JF - Trees
DO - 10.1007/s00468-018-1756-2
DA - 2018-09-03
UR - https://www.deepdyve.com/lp/springer-journals/petiole-gall-aphid-pemphigus-spyrothecae-infestation-of-populus-6fd2ECZ8VR
SP - 37
EP - 51
VL - 33
IS - 1
DP - DeepDyve
ER -