RT Journal Article
T1 The co-existence of multiple oak leaf flushes contributes to the large within-tree variation in chemistry, insect attack and pathogen infection
A1 Gaytán, Á.
A1 Moreira, X.
A1 Castagneyrol, B.
A1 Van Halder, I.
A1 De Frenne, P.
A1 Meeussen, C
A1 Timmermans, B.G.H.
A1 Ten Hoopen, J.P.J.G.
A1 Rasmussen, P.U.
A1 Bos, N.
A1 Jaatinen, R.
A1 Pulkkinen, P.
A1 Söderlund, S.
A1 Covelo Núñez, Felisa
A1 Gotthard, K.
A1 Tack, A.J.M.
K1 Herbivory
K1 Leaf chemistry
K1 Leaf flush
K1 Pathogen infection
K1 Polycyclism
K1 Quercus robur
AB Many plant species produce multiple leaf flushes during the growing season, which mighthave major consequences for within-plant variation in chemistry and species interactions. Yet,we lack a theoretical or empirical framework for how differences among leaf flushes mightshape variation in damage by insects and diseases.We assessed the impact of leaf flush identity on leaf chemistry, insect attack and pathogeninfection on the pedunculate oak Quercus robur by sampling leaves from each leaf flush in 20populations across seven European countries during an entire growing season.The first leaf flush had higher levels of primary compounds, and lower levels of secondarycompounds, than the second flush, whereas plant chemistry was highly variable in the thirdflush. Insect attack decreased from the first to the third flush, whereas infection by oak powderymildew was lowest on leaves from the first flush. The relationship between plant chemistry,insect attack and pathogen infection varied strongly among leaf flushes and seasons.Our findings demonstrate the importance of considering differences among leaf flushes forour understanding of within-tree variation in chemistry, insect attack and disease levels,something particularly relevant given the expected increase in the number of leaf flushes withclimate change.
PB Wiley
YR 2022
FD 2022-08
LK https://hdl.handle.net/10433/21822
UL https://hdl.handle.net/10433/21822
LA en
NO New Phytologist, 235 (4): 1615-1628
NO Departamento de Sistemas Físicos, Químicos y Naturales
DS RIO
RD May 9, 2026