Drought effects on carbon allocation to resin defences and on resin dynamics in old-grown Scots pine

Rissanen, Kaisa; Hölttä, Teemu; Bäck, Jaana; Rigling, Andreas; Wermelinger, Beat; Geßler, Arthur

doi:10.1016/j.envexpbot.2021.104410

Cited by 22 publications

(17 citation statements)

References 67 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The rate and amount of resin flowing from wounds, the pressure and composition of resin, and the size and number of resin ducts contribute to conifer tree resistance against abiotic and biotic injury. Resin pressure within the ducts and the flow of resin from wounds are directly affected by environmental variables, such as temperature and availability of water [ 39 ]. Thus, the amount of resin is not always significantly related to the biomass of trees because it responds to injury and environmental variables [ 11 , 38 , 39 ], especially adverse situations, as noted above.…”

Section: Discussionmentioning

confidence: 99%

“…Resin pressure within the ducts and the flow of resin from wounds are directly affected by environmental variables, such as temperature and availability of water [ 39 ]. Thus, the amount of resin is not always significantly related to the biomass of trees because it responds to injury and environmental variables [ 11 , 38 , 39 ], especially adverse situations, as noted above. That is why the resin productivity of the trees on the south slope was slightly lower than that on the north slope, but the tree height and DBH showed the opposite results in this research.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Prediction and Comparisons of Turpentine Content in Slash Pine at Different Slope Positions Using Near-Infrared Spectroscopy

Luan

Sun

Ding

et al. 2022

Plants

View full text Add to dashboard Cite

Pine resin is one of the best known and most exploited non-wood products. Resin is a complex mixture of terpenes produced by specialized cells that are dedicated to tree defense. Chemical defenses are plastic properties, and concentrations of chemical defenses can be adjusted based on environmental factors, such as resource availability. The slope orientation (south/sunny or north/shady) and the altitude of the plantation site have significant effects on the soil nutrient and the plant performance, whereas little is known about how the slope affects the pine resin yield and its components. In total, 1180 slash pines in 18 plots at different slope positions were established to determine the effects on the α- and β-pinene content and resin production of the slash pine. The near-infrared spectroscopy (NIR) technique was developed to rapidly and economically predict the turpentine content for each sample. The results showed that the best partial least squares regression (PLS) models for α- and β-pinene content prediction were established via the combined treatment of multiplicative scatter correction–significant multivariate correlation (MSC–sMC). The prediction models based on sMC spectra for α- and β-pinene content have an R2 of 0.82 and 0.85 and an RMSE of 0.96 and 0.82, respectively, and they were successfully implemented in turpentine prediction in this research. The results also showed that a barren slope position (especially mid-slope) could improve the α-pinene and β-pinene content and resin productivity of slash pine, and the β-pinene content in the resin had more variances in this research.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Prediction and Comparisons of Turpentine Content in Slash Pine at Different Slope Positions Using Near-Infrared Spectroscopy

Luan

Sun

Ding

et al. 2022

Plants

View full text Add to dashboard Cite

show abstract

“…In our case, we took the 1960–2018 period as temporal span and a 12‐month SPEI scale. We chose the 12‐month scale assuming it is suitable to identify prolonged droughts with negative effects on tree defense capacity (Rissanen et al, 2021). To compute annual SPEI values, we used climate data at 4 km 2 resolution obtained from TerraClimate database v.1.2 (Abatzoglou et al, 2018) and the SPEI package in R (Beguería & Vicente‐Serrano, 2017).…”

Section: Methodsmentioning

confidence: 99%

Climatic and stand drivers of forest resistance to recent bark beetle disturbance in European coniferous forests

Jaime

Batllori

Ferretti

et al. 2022

Global Change Biology

View full text Add to dashboard Cite

Bark beetle infestation is a major driver of tree mortality that may be critical for forest persistence under climate change and the forecasted increase of extreme heat and drought episodes. Under this context, the environmental position of host tree populations within the species’ climatic niche (central vs. marginal populations) is expected to be a determinant in the dynamics of insect–host systems. Here, we analyzed the recent patterns of bark beetle disturbance and forest resistance across European coniferous forests during the 2010–2018 period. We obtained bark beetle attack and tree mortality data from successive continental‐scale forest condition surveys on 130 plots including five host trees and five bark beetle species, and characterized the climatic niche of each species. Then, we analyzed the overall forest resistance and species‐specific responses, in terms of bark beetle attack and induced tree mortality, in relation to the distance to the niche optimum of both host tree and beetle species, previous drought events, and plot characteristics. Regional patterns of recent disturbance revealed that forests in central, north, and east of Europe could be at risk under the attack of multivoltine bark beetle species. We found that overall forest resistance to beetle attack was determined by several driving factors, which varied among species responses. Particularly, the environmental position of the affected forest within the host and beetle species’ climatic niche and plot characteristics mediated the influence of drought on the resistance to beetle attack. In turn, forest resistance to induced tree mortality was determined exclusively by the maximum intensity and duration of drought events. Our findings highlight the importance of disturbance interactions and suggest that the joint influence of drought events and bark beetle disturbance will threaten the persistence of European coniferous forests, even in those tree populations close to their species' climatic optimum.

show abstract

“…The aim of the parallel study was to understand how drought affects carbon allocation to resin defences at short and long timescales, but we were able to use a part of the resin pressure dynamics data to explain the trends in stem monoterpene emission rates. In addition to the resin pressure measurements, we monitored mid‐day water potential in twigs of five trees both on dry and on irrigated plot (twig water potential, TWP) two times per week using pressure chambers (Rissanen et al, 2021). Here, we used the mean mid‐day value over the five trees per plot to compare with the daily mean stem VOC emissions.…”

Section: Methodsmentioning

confidence: 99%

Drought effects on volatile organic compound emissions from Scots pine stems

Rissanen

Aalto

Geßler

et al. 2021

Plant Cell & Environment

Self Cite

View full text Add to dashboard Cite

Tree stems have been identified as sources of volatile organic compounds (VOCs) that play important roles in tree defence and atmospheric chemistry. Yet, we lack understanding on the magnitude and environmental drivers of stem VOC emissions in various forest ecosystems. Due to the increasing importance of extreme drought, we studied drought effects on the VOC emissions from mature Scots pine (Pinus sylvestris L.) stems. We measured monoterpenes, acetone, acetaldehyde and methanol emissions with custom‐made stem chambers, online PTR‐MS and adsorbent sampling in a drought‐prone forest over the hot‐dry summer of 2018 and compared the emission rates and dynamics between trees in naturally dry conditions and under long‐term irrigation (drought release). The pine stems were significant monoterpene sources. The stem monoterpene emissions potentially originated from resin, based on their similar monoterpene spectra. The emission dynamics of all VOCs followed temperature at a daily scale, but monoterpene and acetaldehyde emission rates decreased nonlinearly with drought over the summer. Despite the dry conditions, large peaks of monoterpene, acetaldehyde and acetone emissions occurred in late summer potentially due to abiotic or biotic stressors. Our results highlight the potential importance of stem emissions in the ecosystem VOC budget, encouraging further studies in diverse environments.

show abstract

Drought effects on carbon allocation to resin defences and on resin dynamics in old-grown Scots pine

Cited by 22 publications

References 67 publications

Prediction and Comparisons of Turpentine Content in Slash Pine at Different Slope Positions Using Near-Infrared Spectroscopy

Prediction and Comparisons of Turpentine Content in Slash Pine at Different Slope Positions Using Near-Infrared Spectroscopy

Climatic and stand drivers of forest resistance to recent bark beetle disturbance in European coniferous forests

Drought effects on volatile organic compound emissions from Scots pine stems

Contact Info

Product

Resources

About