Effects of salt stress on physiological and postharvest quality characteristics of different Iranian genotypes of basil

Bekhradi, Farzaneh; Delshad, Mojtaba; Marín, Alicia; Luna, María C.; Garrido, Yolanda; Kashi, Abdolkarim; Babalar, Mesbah; Gil, María I.

doi:10.1007/s13580-015-1095-9

Cited by 47 publications

(29 citation statements)

References 30 publications

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“…Conversely, the decrease observed for MDR-V compared to MDR-C is in line with a study on Glicine max (L.) Merr seedlings (Yadegari et al, 2008), Ocimum basilicum L. plants (Borowski and Blamowski, 2009) and on Coffea arabica L. plants (Partelli et al, 2009) exposed to cold treatment. The effect of different hybrid x tuberous roots preparation procedure interaction on pigment content and photosynthesis carried out in our study is consistent with some findings in which it has been hypothesized the existence of a different genotype x abiotic stress response in various species (Bączek-Kwinta et al, 2007; Bekhradi et al, 2015; Kalisz et al, 2016; Tuteja and Gill, 2016). On the other hand, the different behavior observed in R. asiaticus hybrids may also be due to a less pronounced effect of vernalization in MDR, likely suggesting the occurrence of a diverse cold requirement in these hybrids.…”

Section: Discussionsupporting

confidence: 92%

Photosynthesis in Ranunculus asiaticus L.: The Influence of the Hybrid and the Preparation Procedure of Tuberous Roots

et al. 2019

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Ranunculus asiaticus L. is a quantitative long-day geophyte, grown in a cold greenhouse for cut flowers and potted plants. Flowering in ranunculus is a complex process, strongly steered by temperature and photoperiodism. Vernalization of rehydrated tuberous roots anticipate sprouting and leaf rosette formation and flowering. It is known that the time for flowering and the sensitivity to cold treatment, in terms of flowering anticipation, varies in numerous hybrids, while no information seems to be available on the influence of hybrids and on the vernalization on the photosynthetic process and primary metabolite profiling. We investigated the influence of two ranunculus hybrids, MDR and MBO, and two preparation procedures of tuberous roots, only rehydration (Control, C) and rehydration followed by vernalization (V), on the photosynthesis and photochemistry of plants grown in a climatic chamber, under a controlled environment. In addition, in MBO plants, in which the vernalization showed the main effects, carbohydrate, amino acid and protein levels were also investigated. In control plants, the response of leaf photosynthesis, to increasing white light, revealed higher photosynthetic activity in MDR than in MBO. The quantum yield of PSII (ϕPSII), electron transport rate (ETR) and non-photochemical quenching (NPQ) did not differ between the two hybrids. The maximal photochemical efficiency (Fv/Fm) was higher in MBO than in MDR and showed a decrease in both hybrids after vernalization. The preparation treatment of propagation material affected the light response of photosynthesis in the two hybrids differently, which increased in plants from vernalized tuberous roots, compared to those from only rehydrated in MBO and decreased in MDR, in accordance to the effects of vernalization observed in leaf photosynthetic pigments. In MBO vernalized tuberous roots, starch was rapidly degraded, and the carbon skeletons used to synthesize amino acids. Control plants of MBO, developed more leaves than those of MDR and a consequent larger plant leaf area. Compared to only rehydration, vernalization of rehydrated tuberous roots increased the plant leaf area in both the hybrids. Compared to the control, vernalized tuberous roots of MBO showed higher concentrations of sucrose and free amino acids, which could act as a long-distance signal promoting floral transition in young leaf primordia.

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Section: Discussionsupporting

confidence: 92%

Photosynthesis in Ranunculus asiaticus L.: The Influence of the Hybrid and the Preparation Procedure of Tuberous Roots

et al. 2019

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“…In the present study, the significant negative correlation between basil biomass and biochar EC suggests that the growth of this crop was negatively impacted by the incorporation of biochar with high EC. These results are in line with other researchers reporting a decreasing basil biomass, as well as lower transpiration and chlorophyll content, with increasing levels of salinity (Bekhradi et al, 2015). Oppositely, the lack of significant correlation between EC and biomass of lettuce and pansy might indicate a lower EC sensitivity, as shown for instance by van lersel (1999) for pansy.…”

Section: Discussionsupporting

confidence: 91%

Linking biochar properties to biomass of basil, lettuce and pansy cultivated in growing media

Nobile

Denier

Houben

2020

Scientia Horticulturae

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The use of biochar as an additive for growing media for the production of potted plants requires a sound knowledge of how its properties impact plant biomass production. This study aims at linking physical and chemical properties of biochar with horticultural crop biomass. For this purpose, we incorporated six different biochars into growing medium and grew basil (Ocimum basilicum L.), lettuce (Lactuca sativa L. var. crispa) and pansy (Viola wittrockiana Gams.) for one month in greenhouse conditions. We found that physical and chemical properties of biochars had a significant impact on plant growth. Biochars with low density and high porosity promoted the biomass of basil and lettuce. While nutrient concentration in biochars had no impact on plant growth, lettuce and pansy biomasses decreased with increasing biochar pH and basil biomass decreased with increasing biochar electrical conductivity. By identifying which biochar properties influence plant biomass, our study allows selection of the biochars which are the best suited for incorporation into growing media.

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“…In basil, such responses also occur after an increase in the leaf Na accumulation [ 29 ]. The basil genotype use here showed a strong ability to respond to various degrees of salt stress, including a 2-fold (100 mM) and 4-fold (200 mM) stress if compared to the present study [ 29 , 61 ]. We showed here that the activity of the beneficial microbes inoculated consisted in a strong increase in the leaf number and leaf area irrespective of the salt stress, and this may have contributed to increase the plant ability to withdraw Na in the leaves and withstand the salt stress.…”

Section: Discussionmentioning

confidence: 40%

An Endophytic Fungi-Based Biostimulant Modulates Volatile and Non-Volatile Secondary Metabolites and Yield of Greenhouse Basil (Ocimum basilicum L.) through Variable Mechanisms Dependent on Salinity Stress Level

et al. 2021

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Salinity in water and soil is one of the major environmental factors limiting the productivity of agronomic and horticultural crops. In basil (Ocimum basilicum L., Lamiaceae) and other Ocimum species, information on the plant response to mild salinity levels, often induced by the irrigation or fertigation systems, is scarce. In the present work, we tested the effectiveness of a microbial-based biostimulant containing two strains of arbuscular mycorrhiza fungi (AMF) and Trichoderma koningii in sustaining greenhouse basil yield traits, subjected to two mild salinity stresses (25 mM [low] and 50 mM [high] modulated by augmenting the fertigation osmotic potential with NaCl) compared to a non-stressed control. The impact of salinity stress was further appraised in terms of plant physiology, morphological ontogenesis and composition in polyphenols and volatile organic compounds (VOC). As expected, increasing the salinity of the solution strongly depressed the plant yield, nutrient uptake and concentration, reduced photosynthetic activity and leaf water potential, increased the Na and Cl and induced the accumulation of polyphenols. In addition, it decreased the concentration of Eucalyptol and β-Linalool, two of its main essential oil constituents. Irrespective of the salinity stress level, the multispecies inoculum strongly benefited plant growth, leaf number and area, and the accumulation of Ca, Mg, B, p-coumaric and chicoric acids, while it reduced nitrate and Cl concentrations in the shoots and affected the concentration of some minor VOC constituents. The benefits derived from the inoculum in term of yield and quality harnessed different mechanisms depending on the degree of stress. under low-stress conditions, the inoculum directly stimulated the photosynthetic activity after an increase of the Fe and Mn availability for the plants and induced the accumulation of caffeic and rosmarinic acids. under high stress conditions, the inoculum mostly acted directly on the sequestration of Na and the increase of P availability for the plant, moreover it stimulated the accumulation of polyphenols, especially of ferulic and chicoric acids and quercetin-rutinoside in the shoots. Notably, the inoculum did not affect the VOC composition, thus suggesting that its activity did not interact with the essential oil biosynthesis. These results clearly indicate that beneficial inocula constitute a valuable tool for sustaining yield and improving or sustaining quality under suboptimal water quality conditions imposing low salinity stress on horticultural crops.

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Effects of salt stress on physiological and postharvest quality characteristics of different Iranian genotypes of basil

Cited by 47 publications

References 30 publications

Photosynthesis in Ranunculus asiaticus L.: The Influence of the Hybrid and the Preparation Procedure of Tuberous Roots

Photosynthesis in Ranunculus asiaticus L.: The Influence of the Hybrid and the Preparation Procedure of Tuberous Roots

Linking biochar properties to biomass of basil, lettuce and pansy cultivated in growing media

An Endophytic Fungi-Based Biostimulant Modulates Volatile and Non-Volatile Secondary Metabolites and Yield of Greenhouse Basil (Ocimum basilicum L.) through Variable Mechanisms Dependent on Salinity Stress Level

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