LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 490

Search options

  1. Article ; Online: Why leaves become isotopically lighter than photosynthetic carbon isotope discrimination explains: on the importance of post-photosynthetic fractionation.

    Gessler, Arthur

    Journal of experimental botany

    2024  Volume 75, Issue 5, Page(s) 1210–1212

    Language English
    Publishing date 2024-02-28
    Publishing country England
    Document type Journal Article
    ZDB-ID 2976-2
    ISSN 1460-2431 ; 0022-0957
    ISSN (online) 1460-2431
    ISSN 0022-0957
    DOI 10.1093/jxb/erad497
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 55/29: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  2. Article ; Online: Water transport in trees-the importance of radial and circumferential transport.

    Gessler, Arthur

    Tree physiology

    2021  Volume 41, Issue 12, Page(s) 2245–2247

    MeSH term(s) Biological Transport ; Trees ; Water
    Chemical Substances Water (059QF0KO0R)
    Language English
    Publishing date 2021-10-06
    Publishing country Canada
    Document type Editorial ; Comment
    ZDB-ID 743341-4
    ISSN 1758-4469 ; 0829-318X
    ISSN (online) 1758-4469
    ISSN 0829-318X
    DOI 10.1093/treephys/tpab131
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 4737: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  3. Article ; Online: Beyond source and sink control - toward an integrated approach to understand the carbon balance in plants.

    Gessler, Arthur / Zweifel, Roman

    The New phytologist

    2024  Volume 242, Issue 3, Page(s) 858–869

    Abstract: A conceptual understanding on how the vegetation's carbon (C) balance is determined by source activity and sink demand is important to predict its C uptake and sequestration potential now and in the future. We have gathered trajectories of photosynthesis ...

    Abstract A conceptual understanding on how the vegetation's carbon (C) balance is determined by source activity and sink demand is important to predict its C uptake and sequestration potential now and in the future. We have gathered trajectories of photosynthesis and growth as a function of environmental conditions described in the literature and compared them with current concepts of source and sink control. There is no clear evidence for pure source or sink control of the C balance, which contradicts recent hypotheses. Using model scenarios, we show how legacy effects via structural and functional traits and antecedent environmental conditions can alter the plant's carbon balance. We, thus, combined the concept of short-term source-sink coordination with long-term environmentally driven legacy effects that dynamically acclimate structural and functional traits over time. These acclimated traits feedback on the sensitivity of source and sink activity and thus change the plant physiological responses to environmental conditions. We postulate a whole plant C-coordination system that is primarily driven by stomatal optimization of growth to avoid a C source-sink mismatch. Therefore, we anticipate that C sequestration of forest ecosystems under future climate conditions will largely follow optimality principles that balance water and carbon resources to maximize growth in the long term.
    MeSH term(s) Carbon ; Ecosystem ; Photosynthesis/physiology ; Climate ; Phenotype ; Carbon Dioxide ; Carbon Sequestration
    Chemical Substances Carbon (7440-44-0) ; Carbon Dioxide (142M471B3J)
    Language English
    Publishing date 2024-02-20
    Publishing country England
    Document type Journal Article
    ZDB-ID 208885-x
    ISSN 1469-8137 ; 0028-646X
    ISSN (online) 1469-8137
    ISSN 0028-646X
    DOI 10.1111/nph.19611
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 868: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  4. Article ; Online: Sucrose synthase - an enzyme with a central role in the source-sink coordination and carbon flow in trees.

    Gessler, Arthur

    The New phytologist

    2020  Volume 229, Issue 1, Page(s) 8–10

    MeSH term(s) Carbon ; Glucosyltransferases ; Photosynthesis ; Trees ; Wood
    Chemical Substances Carbon (7440-44-0) ; Glucosyltransferases (EC 2.4.1.-) ; sucrose synthase (EC 2.4.1.13)
    Language English
    Publishing date 2020-11-05
    Publishing country England
    Document type Journal Article ; Comment
    ZDB-ID 208885-x
    ISSN 1469-8137 ; 0028-646X
    ISSN (online) 1469-8137
    ISSN 0028-646X
    DOI 10.1111/nph.16998
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 868: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  5. Article ; Online: Different responses of oxygen and hydrogen isotopes in leaf and tree-ring organic matter to lethal soil drought.

    Lehmann, Marco M / Diao, Haoyu / Ouyang, Shengnan / Gessler, Arthur

    Tree physiology

    2024  

    Abstract: The oxygen and hydrogen isotopic composition (δ18O, δ2H) of plant tissues are key tools for the reconstruction of hydrological and plant physiological processes and may therefore be used for disentangling reasons of tree mortality. However, how both ... ...

    Abstract The oxygen and hydrogen isotopic composition (δ18O, δ2H) of plant tissues are key tools for the reconstruction of hydrological and plant physiological processes and may therefore be used for disentangling reasons of tree mortality. However, how both elements respond to soil drought conditions before death have rarely been investigated. To test this, we performed a greenhouse study and determined predisposing fertilization and lethal soil drought effects on δ18O and δ2H values of organic matter (OM) in leaves and tree rings of living and dead saplings of five European tree species. For mechanistic insights, we additionally measured isotopic (i.e., δ18O and δ2H values of leaf and twig water), physiological (i.e., leaf water potential and gas-exchange) and metabolic traits (i.e., leaf and stem non-structural carbohydrate concentration, C:N ratios). Across all species, lethal soil drought generally caused a homogenous 2H-enrichment in leaf and tree-ring OM, but a low and heterogenous δ18O response in the same tissues. Unlike δ18O values, δ2H values of tree-ring OM were correlated with those of leaf and twig water and with plant physiological traits across treatments and species. The 2H-enrichment in plant OM also went along with a decrease in stem starch concentrations under soil drought compared to well-watered conditions. In contrast, the predisposing fertilization had generally no significant effect on any tested isotopic, physiological, and metabolic traits. We propose that the 2H-enrichment in the dead trees is related to (i) the plant water isotopic composition, (ii) metabolic processes shaping leaf non-structural carbohydrates, (iii) the use of carbon reserves for growth, and (iv) species-specific physiological adjustments. The homogenous stress imprint on δ2H but not on δ18O suggests that the former could be used as a proxy to reconstruct soil droughts and underlying processes of tree mortality.
    Language English
    Publishing date 2024-04-15
    Publishing country Canada
    Document type Journal Article
    ZDB-ID 743341-4
    ISSN 1758-4469 ; 0829-318X
    ISSN (online) 1758-4469
    ISSN 0829-318X
    DOI 10.1093/treephys/tpae043
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 4737: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  6. Book ; Thesis: Untersuchungen zum Stickstoffhaushalt von Buchen (Fagus sylvatica) in einem stickstoffübersättigten Waldökosystem

    Geßler, Arthur

    33 Tab

    (Schriftenreihe der Professur für Baumphysiologie / Albert-Ludwigs-Universität Freiburg i. Br. ; Bd. 6)

    1999  

    Author's details Arthur Geßler
    Series title Schriftenreihe der Professur für Baumphysiologie / Albert-Ludwigs-Universität Freiburg i. Br. ; Bd. 6
    Collection
    Keywords Höglwald ; Waldökosystem ; Stickstoffemission ; Stickstoffbelastung ; Buche ; Stickstoffhaushalt
    Subject Fagus ; Stickstoff ; Wald ; Waldökologie
    Language German
    Size VII, 237 S. : Ill., graph. Darst.
    Edition 1. Aufl.
    Publisher Wiss.-Verl. Maraun
    Publishing place Frankfurt/M
    Publishing country Germany
    Document type Book ; Thesis
    Thesis / German Habilitation thesis Freiburg (Breisgau), Univ., Diss., 1998
    HBZ-ID HT012760408
    ISBN 3-932666-11-9 ; 978-3-932666-11-7
    Database Catalogue ZB MED Nutrition, Environment, Agriculture

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Shelf markLoan statusLocation
    008/210 available for loan (reading room) Freihandmagazin (U1)

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  7. Article ; Online: Uncoupling of stomatal conductance and photosynthesis at high temperatures: mechanistic insights from online stable isotope techniques.

    Diao, Haoyu / Cernusak, Lucas A / Saurer, Matthias / Gessler, Arthur / Siegwolf, Rolf T W / Lehmann, Marco M

    The New phytologist

    2024  Volume 241, Issue 6, Page(s) 2366–2378

    Abstract: The strong covariation of temperature and vapour pressure deficit (VPD) in nature limits our understanding of the direct effects of temperature on leaf gas exchange. Stable isotopes in ... ...

    Abstract The strong covariation of temperature and vapour pressure deficit (VPD) in nature limits our understanding of the direct effects of temperature on leaf gas exchange. Stable isotopes in CO
    MeSH term(s) Plant Stomata/physiology ; Temperature ; Carbon Dioxide/metabolism ; Photosynthesis/physiology ; Plant Leaves/physiology ; Isotopes ; Water/physiology
    Chemical Substances Carbon Dioxide (142M471B3J) ; Isotopes ; Water (059QF0KO0R)
    Language English
    Publishing date 2024-02-01
    Publishing country England
    Document type Journal Article
    ZDB-ID 208885-x
    ISSN 1469-8137 ; 0028-646X
    ISSN (online) 1469-8137
    ISSN 0028-646X
    DOI 10.1111/nph.19558
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 868: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  8. Article ; Online: Finding the balance between open access to forest data while safeguarding the integrity of National Forest Inventory-derived information.

    Gessler, Arthur / Schaub, Marcus / Bose, Arun / Trotsiuk, Volodymyr / Valbuena, Ruben / Chirici, Gherardo / Buchmann, Nina

    The New phytologist

    2024  Volume 242, Issue 2, Page(s) 344–346

    MeSH term(s) Access to Information ; Forests ; Ecosystem ; Trees ; Environmental Monitoring
    Language English
    Publishing date 2024-02-15
    Publishing country England
    Document type Letter
    ZDB-ID 208885-x
    ISSN 1469-8137 ; 0028-646X
    ISSN (online) 1469-8137
    ISSN 0028-646X
    DOI 10.1111/nph.19466
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 868: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  9. Article ; Online: Stable water isotopes reveal the onset of bud dormancy in temperate trees, whereas water content is a better proxy for dormancy release.

    Walde, Manuel G / Wenden, Bénédicte / Chuine, Isabelle / Gessler, Arthur / Saurer, Matthias / Vitasse, Yann

    Tree physiology

    2024  Volume 44, Issue 4

    Abstract: Earlier spring growth onset in temperate forests is a visible effect of global warming that alters global water and carbon cycling. Consequently, it becomes crucial to accurately predict the future spring phenological shifts in vegetation under different ...

    Abstract Earlier spring growth onset in temperate forests is a visible effect of global warming that alters global water and carbon cycling. Consequently, it becomes crucial to accurately predict the future spring phenological shifts in vegetation under different climate warming scenarios. However, current phenological models suffer from a lack of physiological insights of tree dormancy and are rarely experimentally validated. Here, we sampled twig cuttings of five deciduous tree species at two climatically different locations (270 and 750 m a.s.l., ~ 2.3 °C difference) throughout the winter of 2019-20. Twig budburst success, thermal time to budburst, bud water content and short-term 2H-labelled water uptake into buds were quantified to link bud dormancy status with vascular water transport efficacy, with the objective of establishing connections between the dormancy status of buds and their effectiveness in vascular water transport. We found large differences in the dormancy status between species throughout the entire investigation period, likely reflecting species-specific environmental requirements to initiate and release dormancy, whereas only small differences in the dormancy status were found between the two studied sites. We found strong 2H-labelled water uptake into buds during leaf senescence, followed by a sharp decrease, which we ascribed to the initiation of endodormancy. However, surprisingly, we did not find a progressive increase in 2H-labelled water uptake into buds as winter advanced. Nonetheless, all examined tree species exhibited a consistent relationship between bud water content and dormancy status. Our results suggest that short-term 2H-labelled water uptake may not be a robust indicator of dormancy release, yet it holds promise as a method for tracking the induction of dormancy in deciduous trees. By contrast, bud water content emerges as a cost-effective and more reliable indicator of dormancy release.
    MeSH term(s) Trees/physiology ; Climate ; Forests ; Seasons ; Species Specificity ; Temperature
    Language English
    Publishing date 2024-02-28
    Publishing country Canada
    Document type Journal Article
    ZDB-ID 743341-4
    ISSN 1758-4469 ; 0829-318X
    ISSN (online) 1758-4469
    ISSN 0829-318X
    DOI 10.1093/treephys/tpae028
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 4737: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  10. Article: Integrating Aquatic and Terrestrial Perspectives to Improve Insights Into Organic Matter Cycling at the Landscape Scale

    Kayler, Zachary / Gessler, Arthur / Gessner, Mark O. / Griebler, Christian / Hilt, Sabine / Kuzyakov, Yakov / Reichstein, Markus / Totsche, Kai Uwe / Tranvik, Lars J.

    Frontiers in Earth Science, 7:127

    2019  

    Abstract: Across a landscape, aquatic-terrestrial interfaces within and between ecosystems are hotspots of organic matter (OM) mineralization. These interfaces are characterized by sharp spatio-temporal changes in environmental conditions, which affect OM ... ...

    Institution Leibniz-Institut für Gewässerökologie und Binnenfischerei
    Abstract Across a landscape, aquatic-terrestrial interfaces within and between ecosystems are hotspots of organic matter (OM) mineralization. These interfaces are characterized by sharp spatio-temporal changes in environmental conditions, which affect OM properties and thus control OM mineralization and other transformation processes. Consequently, the extent of OM movement at and across aquatic-terrestrial interfaces is crucial in determining OM turnover and carbon (C) cycling at the landscape scale. Here, we propose expanding current concepts in aquatic and terrestrial ecosystem sciences to comprehensively evaluate OM turnover at the landscape scale. We focus on three main concepts toward explaining OM turnover at the landscape scale: the landscape spatio-temporal context, OM turnover described by priming and ecological stoichiometry, and anthropogenic effects as a disruptor of natural OM transfer magnitudes and pathways. A conceptual framework is introduced that allows for discussing the disparities in spatial and temporal scales of OM transfer, changes in environmental conditions, ecosystem connectivity, and microbial–substrate interactions. The potential relevance of priming effects in both terrestrial and aquatic systems is addressed. For terrestrial systems, we hypothesize that the interplay between the influx of OM, its corresponding elemental composition, and the elemental demand of the microbial communities may alleviate spatial and metabolic thresholds. In comparison, substrate level OM dynamics may be substantially different in aquatic systems due to matrix effects that accentuate the role of abiotic conditions, substrate quality, and microbial community dynamics. We highlight the disproportionate impact anthropogenic activities can have on OM cycling across the landscape. This includes reversing natural OM flows through the landscape, disrupting ecosystem connectivity, and nutrient additions that cascade across the landscape. This knowledge is crucial for a better understanding of OM cycling in a landscape context, in particular since terrestrial and aquatic compartments may respond differently to the ongoing changes in climate, land use, and other anthropogenic interferences.
    Keywords anthropogenic interferences ; aquatic-terrestrial interfaces ; ecological stoichiometry ; organic matter mineralization ; landscape connectivity ; priming effects
    Language English
    Document type Article
    Database Repository for Life Sciences

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

To top