In-field study on traditional Italian tomato landraces: The constitutive activation of the ROS scavenging machinery reduces effects of drought stress

Landi, Simone; Lillo, Alessia De; Nurcato, Roberta; Grillo, Stefania; Esposito, Sergio

doi:10.1016/j.plaphy.2017.06.011

Cited by 34 publications

(26 citation statements)

References 44 publications

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“…In 'Crovarese' under short-term water stress, Tamburino et al (2017) also found high reduction of g s and increase of ABA and proline. In several LSL landraces from Campania including 'Lucariello,' 'Crovarese' and 'Giallo Benaventano, ' Landi et al (2017) described the constitutive activation of ROS detoxification machinery as a fast response under stress. This involved enzymes that reduced the accumulation of ROS resulting from drought-induced photorespiration, with a parallel proline accumulation, thus also triggering osmotic adjustments as a response to drought.…”

Section: Drought Tolerance In Mediterranean Lsl Landracesmentioning

confidence: 99%

Mediterranean Long Shelf-Life Landraces: An Untapped Genetic Resource for Tomato Improvement

et al. 2020

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The Mediterranean long shelf-life (LSL) tomatoes are a group of landraces with a fruit remaining sound up to 6-12 months after harvest. Most have been selected under semiarid Mediterranean summer conditions with poor irrigation or rain-fed and thus, are drought tolerant. Besides the convergence in the latter traits, local selection criteria have been very variable, leading to a wide variation in fruit morphology and quality traits. The different soil characteristics and agricultural management techniques across the Mediterranean denote also a wide range of plant adaptive traits to different conditions. Despite the notorious traits for fruit quality and environment adaptation, the LSL landraces have been poorly exploited in tomato breeding programs, which rely basically on wild tomato species. In this review, we describe most of the information currently available for Mediterranean LSL landraces in order to highlight the importance of this genetic resource. We focus on the origin and diversity, the main selective traits, and the determinants of the extended fruit shelf-life and the drought tolerance. Altogether, the Mediterranean LSL landraces are a very valuable heritage to be revalued, since constitutes an alternative source to improve fruit quality and shelf-life in tomato, and to breed for more resilient cultivars under the predicted climate change conditions.

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Section: Drought Tolerance In Mediterranean Lsl Landracesmentioning

confidence: 99%

Mediterranean Long Shelf-Life Landraces: An Untapped Genetic Resource for Tomato Improvement

et al. 2020

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“…Intriguingly, AtNRT1.1 . showed a number of stress-related coexpressed genes such as, tonoplast intrinsic protein ( TIPs –At4g17340), glucose-6P dehydrogenase ( G6PDH –At5g13110), heat shock proteins ( HSP –At5g02480), late embryogenesis proteins ( LEA –At3g52470; Boursiac et al, 2005 ; Ma et al, 2006 ; Basile et al, 2011 ; Esposito, 2016 ; Landi et al, 2017a ), thus highlighting its role in abiotic stress response (Table 1 ).…”

Section: The Relationship Between Nitrogen Transporter and Cell Wall mentioning

confidence: 99%

“…The improvement of tolerance in crops vs. abiotic stress remains today an important focus for plant biology researchers because this reduces plant growth, development, and productivity (Reynolds and Tuberosa, 2008 ; Cardi et al, 2015 ; Ruggiero et al, 2017 ). This promising strategy can be prosecuted by applying modern molecular and -omics techniques, together with the study and the analysis of traditional landraces (Van Oosten et al, 2016 ; Landi et al, 2017a , b ). In the last years, many researchers investigated this topic using NGS; in tomato ( Solanum lycopersicum ), 966 differential expressed genes (DEGs) have been identified upon drought; among these, at least 50 genes involved in cell wall remodeling and nitrate transport were identified.…”

Section: Transcriptomic Modification In Adverse Environment: Nitrate mentioning

confidence: 99%

Nitrate Uptake Affects Cell Wall Synthesis and Modeling

Landi

Esposito

2017

Front. Plant Sci.

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Nowadays, the relationship(s) about N assimilation and cell wall remodeling in plants remains generally unclear. Enzymes involved in cell wall synthesis/modification, and nitrogen transporters play a critical role in plant growth, differentiation, and response to external stimuli. In this review, a co-expression analysis of nitrate and ammonium transporters of Arabidopsis thaliana was performed in order to explore the functional connection of these proteins with cell-wall related enzymes. This approach highlighted a strict relationship between inorganic nitrogen transporters and cell wall formation, identifying a number of co-expressed remodeling enzymes. The enzymes involved in pectin and xyloglucan synthesis resulted particularly co-regulated together with nitrate carriers, suggesting a connection between nitrate assimilation and cell wall growth regulation. Major Facilitator Carriers, and one chloride channel, are similarly co-expressed with pectin lyase, pectinacetylesterase, and cellulose synthase. Contrarily, ammonium transporters show little or no connection with those genes involved in cell wall synthesis. Different aspects related to plant development, embryogenesis, and abiotic stress response will be discussed, given the importance in plant growth of cell wall synthesis and nitrate uptake. Intriguingly, the improvement of abiotic stress tolerance in crops concerns both these processes indicating the importance in sensing the environmental constraints and mediating a response. These evaluations could help to identify candidate genes for breeding purposes.

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“…When precise kinetics are to be followed (e.g., ABA accumulation in tissues, metabolite or protein accumulation, gene expression), artificial setups under very controlled conditions are more convenient. Soil-based protocols, ranging from pot-grown plants in growth chambers or greenhouses [28] to field studies [25], are the most used when phenotyping drought stress in tomato. Their similarity to real conditions makes them perfect for applied research.…”

Section: Drought Stress Protocolsmentioning

confidence: 99%

“…In Arabidopsis, LI-COR gas exchange systems were used in several studies to assess leaf gas exchange under drought [117,118]. In tomato, carbon assimilation under drought stress is studied across different scales and levels of environmental control, from chambers with artificially elevated CO 2 [100] to greenhouse and field [25,26]. As carbon assimilation is highly influenced by irradiation and temperature, studies in greenhouses and in the field should be conducted in reproducible weather conditions, ideally during sunny days and virtually at the same time.…”

Section: Gas Exchangementioning

confidence: 99%

Phenotyping in Arabidopsis and Crops—Are We Addressing the Same Traits? A Case Study in Tomato

Krukowski

Ellenberger

Röhlen-Schmittgen

et al. 2020

Genes

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The convenient model Arabidopsis thaliana has allowed tremendous advances in plant genetics and physiology, in spite of only being a weed. It has also unveiled the main molecular networks governing, among others, abiotic stress responses. Through the use of the latest genomic tools, Arabidopsis research is nowadays being translated to agronomically interesting crop models such as tomato, but at a lagging pace. Knowledge transfer has been hindered by invariable differences in plant architecture and behaviour, as well as the divergent direct objectives of research in Arabidopsis vs. crops compromise transferability. In this sense, phenotype translation is still a very complex matter. Here, we point out the challenges of “translational phenotyping” in the case study of drought stress phenotyping in Arabidopsis and tomato. After briefly defining and describing drought stress and survival strategies, we compare drought stress protocols and phenotyping techniques most commonly used in the two species, and discuss their potential to gain insights, which are truly transferable between species. This review is intended to be a starting point for discussion about translational phenotyping approaches among plant scientists, and provides a useful compendium of methods and techniques used in modern phenotyping for this specific plant pair as a case study.

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In-field study on traditional Italian tomato landraces: The constitutive activation of the ROS scavenging machinery reduces effects of drought stress

Cited by 34 publications

References 44 publications

Mediterranean Long Shelf-Life Landraces: An Untapped Genetic Resource for Tomato Improvement

Mediterranean Long Shelf-Life Landraces: An Untapped Genetic Resource for Tomato Improvement

Nitrate Uptake Affects Cell Wall Synthesis and Modeling

Phenotyping in Arabidopsis and Crops—Are We Addressing the Same Traits? A Case Study in Tomato

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