Ultraviolet-B radiation or heat cause changes in photosynthesis, antioxidant enzyme activities and pollen performance in olive tree
| LEADER | caa a22 4500 | ||
|---|---|---|---|
| 001 | 605481180 | ||
| 003 | CHVBK | ||
| 005 | 20210128100419.0 | ||
| 007 | cr unu---uuuuu | ||
| 008 | 210128e20150601xx s 000 0 eng | ||
| 024 | 7 | 0 | |a 10.1007/s11099-015-0102-9 |2 doi |
| 035 | |a (NATIONALLICENCE)springer-10.1007/s11099-015-0102-9 | ||
| 245 | 0 | 0 | |a Ultraviolet-B radiation or heat cause changes in photosynthesis, antioxidant enzyme activities and pollen performance in olive tree |h [Elektronische Daten] |c [G. Koubouris, N. Kavroulakis, I. Metzidakis, M. Vasilakakis, A. Sofo] |
| 520 | 3 | |a The present study attempts to determine how some physiological and reproductive functions of olive tree (Olea europaea L., cv. Koroneiki) respond to enhanced UV-B radiation or heat. Enhanced UV-B radiation was applied to (1) three-year-old potted plants in an open nursery (corresponded to ca. 16% ozone depletion), and (2) in vitro cultured pollen samples (220 μmol m−2 s−1, PAR = 400−700 nm + UV-B at 7.5, 15.0, or 22.5 kJ m−2 d−1). Potted olive plants were also subjected to high temperature (38 ± 4°C) for 28 h to mimic heat levels regularly measured in olive growing areas. A significant effect of UV-B on photosynthetic rate was observed. However, enhanced UV-B radiation did affect neither chlorophyll nor carotenoid content, supporting previous reports on hardiness of the photosynthetic apparatus in olive. Increased superoxide dismutase activity was observed in UV-B-treated olive plants (+ 225%), whereas no effect was found in the plants under heat stress. Neither UV-B and nor heat did affect H2O2 accumulation in the plant tissues. However, the same treatments resulted in enhanced lipid peroxidation (+ 18% for UV-B and + 15% for heat), which is likely linked to other reactive oxygen species. The increased guaiacol peroxidase activity observed in both treatments (+ 32% for UV-B and + 49% for heat) is related to the defense against oxidative membrane damage. The observed reduction in pollen germination (20-39%) and tube length (11-44%) could have serious implications on olive yields, especially for low fruit-setting cultivars or in years and environments with additional unfavorable conditions. UV-B and heat effects described here support the hypothesis that plant response to a given stressor is affected by the overall context and that a holistic approach is necessary to determine plant strategies for climate change adaptation. | |
| 540 | |a The Institute of Experimental Botany, 2015 | ||
| 690 | 7 | |a abiotic stress |2 nationallicence | |
| 690 | 7 | |a climate change |2 nationallicence | |
| 690 | 7 | |a lipid peroxidation |2 nationallicence | |
| 690 | 7 | |a ozone |2 nationallicence | |
| 690 | 7 | |a pollen germination |2 nationallicence | |
| 690 | 7 | |a ANOVA : analysis of variance |2 nationallicence | |
| 690 | 7 | |a Car : carotenoids |2 nationallicence | |
| 690 | 7 | |a Chl : chlorophyll |2 nationallicence | |
| 690 | 7 | |a C i : intercellular CO2 concentration |2 nationallicence | |
| 690 | 7 | |a DM : dry mass |2 nationallicence | |
| 690 | 7 | |a FM : fresh mass |2 nationallicence | |
| 690 | 7 | |a GPOX : guaiacol peroxidase |2 nationallicence | |
| 690 | 7 | |a g s : stomatal conductance |2 nationallicence | |
| 690 | 7 | |a MDA : malondialdehyde |2 nationallicence | |
| 690 | 7 | |a P N : net photosynthetic rate |2 nationallicence | |
| 690 | 7 | |a ROS : reactive oxygen species |2 nationallicence | |
| 690 | 7 | |a SOD : superoxide dismutase |2 nationallicence | |
| 690 | 7 | |a TBARS : thiobarbituric acid reactive substances |2 nationallicence | |
| 690 | 7 | |a UV-B : ultraviolet-B radiation |2 nationallicence | |
| 700 | 1 | |a Koubouris |D G. |u Institute for Olive Tree and Subtropical Plants, National Agricultural Research Foundation (N.AG.RE.F.), ELGO ‘DEMETER' Agrokipio, 73100, Chania, Greece |4 aut | |
| 700 | 1 | |a Kavroulakis |D N. |u Institute for Olive Tree and Subtropical Plants, National Agricultural Research Foundation (N.AG.RE.F.), ELGO ‘DEMETER' Agrokipio, 73100, Chania, Greece |4 aut | |
| 700 | 1 | |a Metzidakis |D I. |u Institute for Olive Tree and Subtropical Plants, National Agricultural Research Foundation (N.AG.RE.F.), ELGO ‘DEMETER' Agrokipio, 73100, Chania, Greece |4 aut | |
| 700 | 1 | |a Vasilakakis |D M. |u School of Agriculture, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece |4 aut | |
| 700 | 1 | |a Sofo |D A. |u School of Agricultural, Forestry, Food and Environmental Sciences, Università degli Studi della Basilicata, Via dell'Ateneo Lucano 10, 85100, Potenza, Italy |4 aut | |
| 773 | 0 | |t Photosynthetica |d The Institute of Experimental Biology of the Czech Academy of Sciences |g 53/2(2015-06-01), 279-287 |x 0300-3604 |q 53:2<279 |1 2015 |2 53 |o 11099 | |
| 856 | 4 | 0 | |u https://doi.org/10.1007/s11099-015-0102-9 |q text/html |z Onlinezugriff via DOI |
| 898 | |a BK010053 |b XK010053 |c XK010000 | ||
| 900 | 7 | |a Metadata rights reserved |b Springer special CC-BY-NC licence |2 nationallicence | |
| 908 | |D 1 |a research-article |2 jats | ||
| 949 | |B NATIONALLICENCE |F NATIONALLICENCE |b NL-springer | ||
| 950 | |B NATIONALLICENCE |P 856 |E 40 |u https://doi.org/10.1007/s11099-015-0102-9 |q text/html |z Onlinezugriff via DOI | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Koubouris |D G. |u Institute for Olive Tree and Subtropical Plants, National Agricultural Research Foundation (N.AG.RE.F.), ELGO ‘DEMETER' Agrokipio, 73100, Chania, Greece |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Kavroulakis |D N. |u Institute for Olive Tree and Subtropical Plants, National Agricultural Research Foundation (N.AG.RE.F.), ELGO ‘DEMETER' Agrokipio, 73100, Chania, Greece |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Metzidakis |D I. |u Institute for Olive Tree and Subtropical Plants, National Agricultural Research Foundation (N.AG.RE.F.), ELGO ‘DEMETER' Agrokipio, 73100, Chania, Greece |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Vasilakakis |D M. |u School of Agriculture, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Sofo |D A. |u School of Agricultural, Forestry, Food and Environmental Sciences, Università degli Studi della Basilicata, Via dell'Ateneo Lucano 10, 85100, Potenza, Italy |4 aut | ||
| 950 | |B NATIONALLICENCE |P 773 |E 0- |t Photosynthetica |d The Institute of Experimental Biology of the Czech Academy of Sciences |g 53/2(2015-06-01), 279-287 |x 0300-3604 |q 53:2<279 |1 2015 |2 53 |o 11099 | ||