4 documents found, page 1 of 1
Demonstration of a strict molecular oxygen requirement of yellow latex oxidatio...
Piva, Luani Rde Oliveira; Jardine, Kolby J.; Cobello, Leticia Oliveira; Gimenez, Bruno Oliva; Durgante, Flávia Machado; Higuchi, NiroPlant-derived latex is widely used in rubber production and plays important roles in ecological processes in the tropics. Although it is known that latex oxidation from the commercially important tree Hevea brasiliensis, results in latex browning, little is known about latex oxidation in highly diverse tropical ecosystems. Here we show that upon physical trunk damage, yellow latex released from the canopy tree ...
Species-specific shifts in diurnal sap velocity dynamics and hysteretic behavio...
Gimenez, Bruno Oliva; Jardine, Kolby J.; Higuchi, Niro; Negrón-Juárez, Robinson I.; Sampaio-Filho, Israel de Jesus; Cobello, Leticia OliveiraCurrent climate change scenarios indicate warmer temperatures and the potential for more extreme droughts in the tropics, such that a mechanistic understanding of the water cycle from individual trees to landscapes is needed to adequately predict future changes in forest structure and function. In this study, we contrasted physiological responses of tropical trees during a normal dry season with the extreme dry...
Volatile monoterpene ‘fingerprints’ of resinous Protium tree species in the Ama...
Piva, Luani Rde Oliveira; Jardine, Kolby J.; Gimenez, Bruno Oliva; Oliveira Perdiz, Ricardo de; Menezes, Valdiek S.; Durgante, Flávia MachadoVolatile terpenoid resins represent a diverse group of plant defense chemicals involved in defense against herbivory, abiotic stress, and communication. However, their composition in tropical forests remains poorly characterized. As a part of tree identification, the ‘smell’ of damaged trunks is widely used, but is highly subjective. Here, we analyzed trunk volatile monoterpene emissions from 15 species of the ...
Below versus above ground plant sources of abscisic acid (ABA) at the heart of ...
Sampaio-Filho, Israel de Jesus; Jardine, Kolby J.; Oliveira, Rosilena Conceição Azevedo de; Gimenez, Bruno Oliva; Cobello, Leticia OliveiraWarming surface temperatures and increasing frequency and duration of widespread droughts threaten the health of natural forests and agricultural crops. High temperatures (HT) and intense droughts can lead to the excessive plant water loss and the accumulation of reactive oxygen species (ROS) resulting in extensive physical and oxidative damage to sensitive plant components including photosynthetic membranes. R...