The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The cuttings of Populus cathayana were exposed to four different manganese (Mn) concentrations (0, 0.1, 0.5 and 1 mM) in a greenhouse to investigate the toxicity of Mn and the detoxifying responses of woody plants. Two contrasting populations of P. cathayana, which were from wet and dry climate regions in western China, respectively, were examined in our study. The results showed that high concentration...
Coffee is native to shady environments, but often grows and yields better without shade. Thus, it may be reasoned that coffee leaves should display enough plasticity to acclimate themselves to contrasting light environments. However, little is known about mechanisms associated with such plasticity in coffee. This work aimed, therefore, to explore differences in leaf photoprotective mechanisms. Plants...
The aim of the present study was to assess the tolerance of Hevea brasiliensis to chilling temperatures since rubber production has been extended to sub-optimal environments. PB260 clone was used to analyze the responses of leaves chilled at 10°C during 96 h, as well as their recovery at 28°C. Some key parameters were used to evaluate photosynthetic apparatus functioning, membrane damage (electrolyte...
The effects of drought on membrane lipids and leaf pigments and the ability of andiroba (Carapa guianensis Aubl.) plants to attenuate oxidative damage through antioxidant enzymes or adjusting carotenoids and glycinebetaine (GB) were examined. Assessments were performed when pre-dawn leaf water potential (Ψpd) of water-stressed plants reached −1.35 and −3.21 MPa (15 and 27 days after withholding irrigation)...
Hydrogen peroxide plays a critical role in the expression of disease resistance in several plant/pathogen interactions. It serves as a substrate for oxidative cross-linking of various plant cell wall components leading to the reinforcement of the cell structure, as a direct toxin against the pathogen and as a signal molecule for the induction of defence-related genes in the adjacent, still healthy...
Holm oak (Quercus ilex ssp. ballota [Desf.] Samp) is one of the most important species in forest communities of the western Mediterranean Basin, but is very vulnerable to environmental stress during the first years of its life. In particular, summer drought and winter frosts limit the distribution, survival, and growth of Holm oak. These two stress factors can lead to plasmolysis and/or oxidative...
Key messageThis study provides a mechanistic basis of the tolerance to light and water stress in two tropical tree species of the Malvaceae used for the reforestation in the tropics.G. ulmifoliais moresensitive to high irradiance thanC. speciosa. Thus,C. speciosais more appropriate for the reforestation of degraded areas with potential excess light or water deficit. Abstract Reforestation...
Key messageArbuscular mycorrhizal symbiosis can help date palm to cope with the oxidative stress induced by long-term drought due to its capacity to enhance host plant antioxidant defense system. Abstract Plant adaptation to water scarcity is mostly the result of existing intrinsic traits. However, mycorrhizal symbiosis is widely believed to provide complementary characteristics that improve...
Key messageOxidative stress and the antioxidant enzymes’ activity are higher in damaged than in healthyJuniperus proceratrees, in summer than in winter, and in dry than in wet condition. Abstract Many of the small stands of Juniperus procera in Saudi Arabia, confined mainly to Aseer Mountains in the southern...
Key message The results of this study indicate the roles of polyamines and phenylpropanoids in the prevention of oxidative damage provoked by UV-B treatment. Abstract Plants respond to UV-B exposure by synthesizing a broad range of secondary metabolites, including ROS-scavenging antioxidants and UV-B screening phenylpropanoids. Our recent results indicated that the accumulation of higher levels...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.