Koivusaari, Pirjo Pohjanen, Johanna Wäli, Piippa R Ahonen, Saija H K Saravesi, Karita Markkola, Anna Mari Haapala, Kaisa Suokas, Marko Koskimäki, Janne J Tejesvi, Mysore V
...
Published in
Tree physiology
Plant meristems were previously thought to be sterile. Today, meristem-associated shoot endophytes are mainly reported as contaminants from plant tissue cultures, the number of observed species being very low. However, the few strains characterized have the capacity for infecting host cells and affecting plant growth and development. Here we studie...
Werden, Leland K Waring, Bonnie G Smith-Martin, Christina M Powers, Jennifer S
Published in
Tree physiology
Tree species in tropical dry forests employ a wide range of strategies to cope with seasonal drought, including regulation of hydraulic function. However, it is uncertain if co-occurring lianas also possess a diversity of strategies. For a taxonomically diverse group of 14 tree and 7 liana species, we measured morphological and hydraulic functional...
Foster, Jane R
Published in
Tree physiology
Defoliation outbreaks are biological disturbances that alter tree growth and mortality in temperate forests. Trees respond to defoliation in many ways; some recover rapidly, while others decline gradually or die. Functional traits such as xylem anatomy, growth phenology or non-structural carbohydrate (NSC) storage could explain these responses, but...
Timofeeva, Galina Treydte, Kerstin Bugmann, Harald Rigling, Andreas Schaub, Marcus Siegwolf, Rolf Saurer, Matthias
Published in
Tree physiology
Drought frequency is increasing in many parts of the world and may enhance tree decline and mortality. The underlying physiological mechanisms are poorly understood, however, particularly regarding chronic effects of long-term drought and the response to increasing temperature and vapor pressure deficit (VPD). We combined analyses of radial growth ...
Trocha, Lidia K Bulaj, Bartosz Kutczynska, Paulina Mucha, Joanna Rutkowski, Pawel Zadworny, Marcin
Published in
Tree physiology
In general, respiration (RS) is highly correlated with nitrogen concentration (N) in plant organs, including roots, which exhibit a positive N-RS relationship. Less is known, however, about the relationship between N and RS in roots of different branch orders within an individual tree along a vertical soil profile; this is especially true in trees ...
Granda, Elena Camarero, J Julio
Published in
Tree physiology
Garcia-Forner, N Biel, C Savé, R Martínez-Vilalta, J
Published in
Tree physiology
Isohydry (i.e., strong regulation of leaf water potential, Ψl) is commonly associated with strict stomatal regulation of transpiration under drought, which in turn is believed to minimize hydraulic risk at the expense of reduced carbon assimilation. Hence, the iso/anisohydric classification has been widely used to assess drought resistance and mort...
Eller, Franziska Jensen, Kai Reisdorff, Christoph
Published in
Tree physiology
Nighttime water flow varies between plant species and is a phenomenon for which the magnitude, purpose and consequences are widely discussed. A potential benefit of nighttime stomata opening may be increased nutrient availability during the night since transpiration affects the mass flow of soil water towards plant roots. We investigated how nitrog...
Martín-Gómez, Paula Serrano, Luis Ferrio, Juan Pedro
Published in
Tree physiology
In ecohydrology, it is generally assumed that xylem water reflects the water source used by plants. Several studies have reported isotopic enrichment within woody tissues, particularly during dormancy periods or after long periods of inactivity. However, little is known about the short-term dynamics of this process. Here we assessed the magnitude a...
Aaltonen, Heidi Lindén, Aki Heinonsalo, Jussi Biasi, Christina Pumpanen, Jukka
Published in
Tree physiology
As the number of drought occurrences has been predicted to increase with increasing temperatures, it is believed that boreal forests will become particularly vulnerable to decreased growth and increased tree mortality caused by the hydraulic failure, carbon starvation and vulnerability to pests following these. Although drought-affected trees are k...