Strong correlation between isoprene emission and gross photosynthetic capacity during leaf phenology of the tropical tree species Hymenaea courbaril with fundamental changes in volatile organic compounds emission composition during early leaf development

2004 ◽  
Vol 27 (12) ◽  
pp. 1469-1485 ◽  
Author(s):  
U. KUHN ◽  
S. ROTTENBERGER ◽  
T. BIESENTHAL ◽  
A. WOLF ◽  
G. SCHEBESKE ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Tree Species ◽  
Strong Correlation ◽  
Leaf Development ◽  
Photosynthetic Capacity ◽  
Tropical Tree ◽  
Hymenaea Courbaril ◽  
Tropical Tree Species ◽  
Volatile Organic

scholarly journals Assessment of Anthropogenic Volatile Organic Compounds in Leaves of Two Urban Tree Species in Santiago de Chile

2019 ◽  
Vol 2 ◽  
Author(s):  
Mauricio Araya ◽  
Daniela Seelenfreund ◽  
Marianne Buscaglia ◽  
Barbara Peña-Ahumada ◽  
Javier Vera ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Tree Species ◽  
Urban Tree ◽  
Santiago De Chile ◽  
Volatile Organic

scholarly journals Photosynthetic plasticity of a tropical tree species, Tabebuia rosea, in response to elevated temperature and [CO2]

2021 ◽  
Author(s):  
Martijn Slot ◽  
Sami Rifai ◽  
Klaus Winter
Keyword(s):  
Tree Species ◽  
Photosynthetic Capacity ◽  
Stomatal Density ◽  
Net Photosynthesis ◽  
Tropical Tree ◽  
Measured Temperature ◽  
Tropical Tree Species ◽  
Neotropical Tree ◽  
Photosynthetic Plasticity ◽  
Tabebuia Rosea

Atmospheric and climate change will expose tropical forests to conditions they have not experienced in millions of years. To better understand the consequences of this change we studied photosynthetic acclimation of the neotropical tree species Tabebuia rosea to combined 4°C warming and twice-ambient (800 ppm) CO. We measured temperature responses of the maximum rates of ribulose 1,5-bisphosphate carboxylation (V), photosynthetic electron transport (J), net photosynthesis (P), and stomatal conductance (gs), and fitted the data using a probabilistic Bayesian approach. To evaluate short-term acclimation plants were then switched between treatment and control conditions and re-measured after 1–2 weeks. Consistent with acclimation, the optimum temperatures (T) for V, J and P were 1–5°C higher in treatment than in control plants, while photosynthetic capacity (V, J, and P at T) was 8–25% lower. Likewise, moving control plants to treatment conditions moderately increased temperature optima and decreased photosynthetic capacity. Stomatal density and sensitivity to leaf-to-air vapor pressure deficit were not affected by growth conditions, and treatment plants did not exhibit stronger stomatal limitations. Collectively, these results illustrate the strong photosynthetic plasticity of this tropical tree species as even fully-developed leaves of saplings transferred to extreme conditions partially acclimated.

Contrasting mechanisms of secondary metabolite accumulation during leaf development in two tropical tree species with different leaf expansion strategies

Oecologia ◽  
2006 ◽  
Vol 149 (1) ◽  
pp. 91-100 ◽  
Author(s):  
Tania Brenes-Arguedas ◽  
Matthew W. Horton ◽  
Phyllis D. Coley ◽  
John Lokvam ◽  
Rachel A. Waddell ◽  
...  
Keyword(s):  
Secondary Metabolite ◽  
Tree Species ◽  
Leaf Development ◽  
Leaf Expansion ◽  
Tropical Tree ◽  
Tropical Tree Species ◽  
Metabolite Accumulation ◽  
Expansion Strategies

scholarly journals Leaf level emissions of volatile organic compounds (VOC) from some Amazonian and Mediterranean plants

2013 ◽  
Vol 10 (9) ◽  
pp. 5855-5873 ◽  
Author(s):  
A. Bracho-Nunez ◽  
N. M. Knothe, ◽  
S. Welter ◽  
M. Staudt ◽  
W. R. Costa ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Plant Species ◽  
Tree Species ◽  
Mediterranean Species ◽  
Voc Emission ◽  
Mediterranean Plants ◽  
Volatile Organic ◽  
Leaf Level ◽  
The Mediterranean

Abstract. Emission inventories defining regional and global biogenic volatile organic compounds (VOC) emission strengths are needed to determine the impact of VOC on atmospheric chemistry (oxidative capacity) and physics (secondary organic aerosol formation and effects). The aim of this work was to contribute with measurements of tree species from the poorly described tropical vegetation in direct comparison with the quite well-investigated, highly heterogeneous emissions from Mediterranean vegetation. VOC emission from sixteen plant species from the Mediterranean area were compared with twelve plant species from different environments of the Amazon basin by an emission screening at leaf level using branch enclosures. Analysis of the volatile organics was performed online by a proton-transfer-reaction mass spectrometer (PTR-MS) and offline by collection on adsorbent tubes and subsequent gas chromatographic analysis. Isoprene was the most dominant compound emitted followed by monoterpenes, methanol and acetone. The average loss rates of VOC carbon in relation to the net CO2 assimilation were found below 4% and indicating normal unstressed plant behavior. Most of the Mediterranean species emitted a large variety of monoterpenes, whereas only five tropical species were identified as monoterpene emitters exhibiting a quite conservative emission pattern (α-pinene < limonene < sabinene < ß-pinene). Mediterranean plants showed additional emissions of sesquiterpenes. In the case of Amazonian plants no sesquiterpenes were detected. However, missing of sesquiterpenes may also be due to a lack of sensitivity of the measuring systems. Furthermore, our screening activities cover only 1% of tree species of such tropical areas as estimated based on recent biodiversity reports. Methanol emissions, an indicator of growth, were found to be common in most of the tropical and Mediterranean species. A few species from both ecosystems showed acetone emissions. The observed heterogeneous emissions, including reactive VOC species which are not easily detected by flux measurements, give reason to perform more screening at leaf level and, whenever possible, within the forests under ambient conditions.

scholarly journals An efficient and rapid DNA minipreparation procedure suitable for PCR/SSR and RAPD analyses in tropical forest tree species

2009 ◽  
Vol 52 (5) ◽  
pp. 1217-1224 ◽  
Author(s):  
Ana Lilia Alzate-Marin ◽  
Marcela Corbo Guidugli ◽  
Hilda Hildebrand Soriani ◽  
Carlos Alberto Martinez ◽  
Moacyr Antônio Mestriner
Keyword(s):  
Tree Species ◽  
Leaf Tissue ◽  
Isoamyl Alcohol ◽  
Forest Tree ◽  
Tropical Tree ◽  
Proteinase K ◽  
Hymenaea Courbaril ◽  
Tropical Tree Species ◽  
Modified Method ◽  
Copaifera Langsdorffii

An efficient and rapid DNA minipreparation modified method for frozen samples was developed for five tropical tree species: Copaifera langsdorffii, Hymenaea courbaril, Eugenia uniflora, Tabebuia roseo alba and Cariniana estrellensis. This procedure that dispenses the use of liquid nitrogen, phenol and the addition of proteinase K, is an adaptation of the CTAB-based DNA extraction method. The modifications included the use of PVP to eliminate the polyphenols, only one chloroform-isoamyl alcohol step and the addition of RNase immediately after extraction with chloroform. The yields of the DNA samples ranged from 25.7 to 42.1 µg from 100 mg leaf tissue. The DNA samples extracted by this method were successfully used for PCR (SSR and RAPD) analyses in these five and other twelve tropical tree species.

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