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Olaya Pérez-Tornero

Bio: Olaya Pérez-Tornero is an academic researcher from Spanish National Research Council. The author has contributed to research in topics: Shoot & Explant culture. The author has an hindex of 16, co-authored 31 publications receiving 764 citations.

Papers
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Journal ArticleDOI
TL;DR: AM fungi can alter host responses to salinity stress, improving more the P, K, Fe and Cu plant nutrition in Cleopatra mandarin than in Alemow plants, demonstrating that AM compensates the growth limitations imposed by salinity.

105 citations

Journal ArticleDOI
TL;DR: The fact that several caulinar meristems exist in early steps could be an advantage when genetically transforming these leaves, since a high number of cells would have the possibility of being transformed and producing adventitious transformed buds.

102 citations

Journal ArticleDOI
TL;DR: Evidence presented in this study strongly suggests that RNases are associated with gametophytic self-incompatibility of apricot and that RNase products may be the S-gene products.
Abstract: Stylar proteins were surveyed by non-equilibrium pH gradient electrofocusing to identify S-RNases associated with gametophytic self-incompatibility in nine apricot cultivars. RNase activities associated with the alleles of incompatibility S 1 , S 2 , S 5 , and S 6 and with the allele of compatibility Sc were clearly identified. Two other bands that we considered related to the alleles S 3 and S 4 were unique to cultivars Sunglo and Harcot, respectively. Two generations of 17 seedlings from the cross Moniqui× Pepito and 38 from Gitano × Pepito were used to determine the inheritance of the S-RNases. Inheritance of these RNase bands followed the expected segregation ratios and the band combinations correlated perfectly with the known self-incompatibility status of the seedlings determined after self-pollination and observation of pollen tube growth. All evidence presented in this study strongly suggests that RNases are associated with gametophytic self-incompatibility of apricot and that RNases may be the S-gene products. This is the first report identifying S-RNases and describing the inheritance of these S-RNases in apricot.

70 citations

Journal ArticleDOI
TL;DR: In this article, factors affecting in vitro propagation of several apricot cultivars were studied and the effect of nutrient media and BA concentration were strongly genotype dependent, with best results obtained between 1.78 and 3.11 μM.
Abstract: Factors affecting in vitro propagation of several apricot cultivars were studied. The effect of nutrient media and BA concentration were strongly genotype dependent. Generally, best results were achieved with Quoirin and Lepoivre (1977) and a modification of WPM macronutrients (Lloyd and McCown, 1981). Optimum BA concentration was different for each cultivar but best results were obtained between 1.78 and 3.11 μM. Apricot shoots rooted well with different concentrations of IBA but most shoots showed symptoms of apical necrosis that could be overcome by dipping the shoot tips in solutions of 22.2 or 44.4 μM of BA prior to transfer to rooting medium.

65 citations

Journal ArticleDOI
TL;DR: A new approach is employed, data mining, to uncover and integrate knowledge hidden in multiple data from plant tissue culture media formulations using apricot micropropagation databases as an example, which advantageously generated understandable and reusable knowledge that can be applied in future plant tissueculture media optimization.

54 citations


Cited by
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Journal ArticleDOI
23 Feb 2017-Agronomy
TL;DR: This review deals with the adaptive mechanisms that plants can implement to cope with the challenge of salt stress, including morphological, physiological and biochemical changes, and some of the mechanisms thought to protect the photosynthetic machinery.
Abstract: This review deals with the adaptive mechanisms that plants can implement to cope with the challenge of salt stress. Plants tolerant to NaCl implement a series of adaptations to acclimate to salinity, including morphological, physiological and biochemical changes. These changes include increases in the root/canopy ratio and in the chlorophyll content in addition to changes in the leaf anatomy that ultimately lead to preventing leaf ion toxicity, thus maintaining the water status in order to limit water loss and protect the photosynthesis process. Furthermore, we deal with the effect of salt stress on photosynthesis and chlorophyll fluorescence and some of the mechanisms thought to protect the photosynthetic machinery, including the xanthophyll cycle, photorespiration pathway, and water-water cycle. Finally, we also provide an updated discussion on salt-induced oxidative stress at the subcellular level and its effect on the antioxidant machinery in both salt-tolerant and salt-sensitive plants. The aim is to extend our understanding of how salinity may affect the physiological characteristics of plants.

874 citations

BookDOI
01 Jan 2001
TL;DR: This work has shown that self-Incompatibility and Incongruity Barriers Between Different Species are related and the goal of this paper is to establish a database of these barriers and to describe their mechanisms.
Abstract: 1 The Basic Features of Self-Incompatibility.- 2 The Genetics of Self-Incompatibility.- 3 Cellular and Molecular Biology of Self-Incompatibility.- 4 Breakdown of the Self-Incompatibility Character, S Mutations and the Evolution of Self-Incompatible Systems.- 5 Incompatibility and Incongruity Barriers Between Different Species.- 6 Conclusions.- References.

732 citations

Journal ArticleDOI
TL;DR: The present review provides a comprehensive up-to-date knowledge on AMF and their influence on host plants at various growth stages, their advantages and applications, and consequently the importance of the relationships of different plant nutrients with AMF.
Abstract: Abiotic stresses hamper plant growth and productivity. Climate change and agricultural malpractices like excessive use of fertilizers and pesticides have aggravated the effects of abiotic stresses on crop productivity, and degraded the ecosystem. There is an urgent need for environment-friendly management techniques such as the use of arbuscular mycorrhizal fungi (AMF) for enhancing crop productivity. AMF are commonly known as bio-fertilizers. Moreover, it is widely believed that the inoculation of AMF provides tolerance to host plants against various stressful situations like heat, salinity, drought, metals and extremes of temperature. AMF may both assist host plants in up-regulation of tolerance mechanisms, and prevent the down-regulation of key metabolic pathways. AMF, being natural root symbionts, provide essential plant inorganic nutrients to host plants, thereby improving growth and yield under unstressed and stressed regimes. The role of AMF as a bio-fertilizer can potentially strengthen plants’ adaptability to changing environment. Thus, further research focusing on the AMF-mediated promotion of crop quality and productivity is needed. The present review provides a comprehensive up-to-date knowledge on AMF and their influence on host plants at various growth stages, their advantages and applications, and consequently the importance of the relationships of different plant nutrients with AMF.

644 citations

Journal ArticleDOI
TL;DR: It is concluded that future research in the field of soil Salinisation should be focused on among others carbon dynamics of saline soil, further exploration of remote sensing of soil properties and the harmonization and enrichment of soil salinity maps across Europe within a general context of a soil threat monitoring system to support policies and strategies for the protection of European soils.

431 citations

Journal ArticleDOI
TL;DR: This review has attempted to explore about abiotic and biotic stress tolerant beneficial microorganisms and their modes of action to enhance the sustainable agricultural production.

395 citations