Olive Cultivars and Their Response to Climate Change

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Response to Abiotic Stress and Climate Change".

Deadline for manuscript submissions: closed (10 September 2023) | Viewed by 1269

Special Issue Editor


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Guest Editor
Universidad de Jaen. Departamento de Biología Animal, Biología Vegetal y Ecología. Campus de las Lagunillas s/n, 23071 Jaén, Spain
Interests: olive genomics; abiotic stress; SSR markers; SNPs; gene expression; transcriptomics

Special Issue Information

Dear Colleagues,

Of the more than 1200 olive cultivars (Olea europaea var europaea) described so far, only 5% occupy more than 95% of our olive groves worldwide. The majority remain relegates to the germplasm banks of olive, many of them resistant to diseases or tolerant to drought, salinity or high temperatures. Global warming is affecting vitally important natural ecosystems producing consequently disappearing part or all of many ecosystems. In the case of olive groves, it is essential to increase the biodiversity of such landscapes with new authoctone olive cultivars not yet physiologically, agronomically, genetically and biochemically characterised. Knowing all these aspects of the plants will permit to encourage the responsible increase in biodiversity of the fields and avoid soil erosion and the loss of flora and fauna. All these considerations would limit the number of consumables in the soil and promote a circular economy, with the reuse of olive grove waste to transform our landscapes into diverse and living ecosystems.

Therefore, we must use our olive genetic resources in a responsible way in this century of climatic change. It is necessary to make possible the sustainability of fields, promote the quality of their oils, and encourage the circular economy and biodiversity to prevail over the varietal lack existing in the current ecosystems

Prof. Dr. Ana M. Fernández-Ocaña
Guest Editor

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Keywords

  • olive cultivars
  • climate change
  • genetic resources
  • cultivar characterisation
  • olive biotic and abiotic stress
  • olive transcriptome
  • ground cover

Published Papers (1 paper)

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Research

26 pages, 2386 KiB  
Article
Study of the Photosynthesis Response during the Gradual Lack of Water for 14 Olea europaea L. subsp europaea Cultivars and Their Adaptation to Climate Change
by Genoveva Carmen Martos de la Fuente, Benjamín Viñegla, Elena Illana Rico and Ana Maria Fernández Ocaña
Plants 2023, 12(24), 4136; https://doi.org/10.3390/plants12244136 - 12 Dec 2023
Cited by 2 | Viewed by 802
Abstract
Understanding the tolerance of plants to drought and their gradual response to lack of water is a multifaceted challenge that requires a combination of scientific research and technological innovation. Selecting naturally drought-tolerant plants and knowing their response to photosynthesis in a wide range [...] Read more.
Understanding the tolerance of plants to drought and their gradual response to lack of water is a multifaceted challenge that requires a combination of scientific research and technological innovation. Selecting naturally drought-tolerant plants and knowing their response to photosynthesis in a wide range of water availability opens a door to making decisions about the suitability of different cultivars to be implanted in specific geographical areas, based on their tolerance to drought and light absorption capacity. In this work, photosynthesis–light curves were carried out using a LiCor LI-6800 IRGA device, applying increasing light intensities to plants of 14 olive cultivars, either under control conditions (no water stress) or subject to moderate and severe water deficits. The plants were grown in a culture chamber under controlled conditions for photoperiod, air humidity, temperature, and carbon dioxide concentration. For each cultivar, the electronic transference ratio (ETR) in response to light was also obtained. Different equations were used to fit experimental data allowing us to calculate, with a regression coefficient above 0.95, different photosynthetic parameters such as the maximum photosynthetic capacity, the photosynthetic efficiency, the number of electrons or the number of photons to assimilate a molecule of CO2, and the effect of the lack of water on these parameters. This work represents the first contribution of the response to photosynthesis of many olive cultivars subjected to moderate and severe drought conditions. The parameters described, and the results provided, pave the road for subsequent work related to plant physiology and other areas of science and technology, and allow us to objectively compare the tolerance to water stress in these fourteen olive cultivars. Full article
(This article belongs to the Special Issue Olive Cultivars and Their Response to Climate Change)
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