Environmental Implications from Long-term Citrus Cultivation and Wide Use of Cu Fungicides in Mediterranean Soils

Triantafyllidis, Vassilios; Zotos, Anastasios; Kosma, Chariklia; Kokkotos, Efthimios

doi:10.1007/s11270-020-04577-z

Cited by 17 publications

(8 citation statements)

References 60 publications

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“…The potential toxic element accumulation in cultivation lands, due to long-term application of unsustainable management practices, has a significant impact on soil healthiness and on the functionality of agroecosystems ( Triantafyllidis et al, 2020 ). Although fertilizers are essential in order to provide adequate nutrients and ensure successful harvest, they contribute to the increment of some toxic heavy metals content in agricultural soils ( Kabata-Pendias and Mukherjee, 2007 ).…”

Section: Discussionmentioning

confidence: 99%

“…The use of fungicides on the other hand, generates secondary pollutants to the soil, which contribute to the increase of the concentration of heavy metals and therefore they should not be ignored ( Ballabio et al, 2018 ). Triantafyllidis et al (2020) have recently demonstrated that the wide use of Cu-fungicides in long term orchard cultivations causes important environmental implications. Tsiafouli et al (2015) point out that land-use intensification in Greece and across Europe reduces soil biodiversity and may threaten the functioning of soil in agricultural production systems.…”

Section: Introductionmentioning

confidence: 99%

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Effect of land-use types on edaphic properties and plant species diversity in Mediterranean agroecosystem

Triantafyllidis

Zotos

Kosma

et al. 2020

Saudi Journal of Biological Sciences

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Land-use intensification, contrary to sustainable land management, has an impact on the healthiness of the environmental agroecosystem. To assess the environmental implications in abandoned land, olive groves and maize crops, the most sensitive and reliable edaphic indicators were measured to estimate plant species diversity and potentially toxic elements in soil, among different types of land-use. Species diversity presents a decrease in maize crops and olive groves compared to abandoned land. The families with the greatest species diversity were Poaceae , Asteraceae and Fabaceae in each land-use. From the results of the canonical correspondence analysis among species, sampling sites and selected environmental variables, a clear separation between species and sampling sites belonging to different types of land-use was found, presenting strong correlation with specific edaphic parameters (pH, Soil Organic Matter, Silt, Electrical Conductivity, Total Nitrogen, , P, K, Zn and Cu). Species diversity was reduced in maize crops due to anthropogenic interventions such as the excessive use of nitrogen and phosphate fertilizers and herbicides. Despite the fact that the lowest richness of plant species was found in olive groves, non-removal of crop residue preserves soil organic matter. In 7.4% of soil samples in olive groves, concentrations were over 100 mg kg −1 denoting polluted soils, while the potentially toxic concentrations of bioavailable copper fraction ( probably lead to a decrease of species diversity. Future researches should therefore focus on the accumulation of toxic elements in agricultural land to preserve species diversity and a healthy environment.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of land-use types on edaphic properties and plant species diversity in Mediterranean agroecosystem

Triantafyllidis

Zotos

Kosma

et al. 2020

Saudi Journal of Biological Sciences

Self Cite

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“…The high diseases pressure detected in all surveyed areas forces Citrus growers to adopt scheduled fungicide spray programs. Unfortunately, chemical control leads to harmful and hazardous consequences for human and environmental health and, moreover, the occurrence of widespread resistance phaenomena further discourages its continuous applications [61][62][63][64].…”

Section: Discussionmentioning

confidence: 99%

An Eleven-Year Survey on Field Disease Susceptibility of Citrus Accessions to Colletotrichum and Alternaria Species

et al. 2021

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In the past decade Colletotrichum gloeosporioides, C. karstii, and Alternaria alternata represent emerging fungal pathogens on citrus in the Mediterranean basin. Selection of tolerant Citrus germplasm offers evaluable long-term solution and should be considered as promising alternative to limit synthetic fungicide application to manage Alternaria and Colletotrichum infections in Citrus groves. In this study, the high variability of pre-harvest disease symptoms among 37 Citrus accessions was investigated in Italy in the most representative Sicilian production districts covering 1500 ha and including 20 homogeneous areas over an eleven-year survey period (2010–2020). Early fruit drop, brown spot, and anthracnose on fruit and leaves, pre-harvest fruit drop, and twig blight and defoliation associated to Alternaria and Colletotrichum spp. were identified on oranges, mandarins, and lemons. Comprehensively, first extensive data obtained herein on field susceptibility within “Tarocco” blood orange group to above disease symptoms clearly indicate as “Tarocco Nucellare 57-1E-1,” “Tarocco Tapi,” “Tarocco Sant’Alfio,” and “Tarocco Catania” accessions should be preferred to remaining Tarocco ones. A broad degree of tolerance or susceptibility was also observed within other Citrus group as it happens for tolerant lemon “Femminello Zagara Bianca,” thus demonstrating a putative resource for further studies to employ in a breeding program for genetic improvement of Citrus.

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“…The Cu-containing solution dripped from the trees or washed by precipitation increased the Cu concentration of the topsoil. Accordingly, old citrus orchards often had a significantly higher soil Cu concentration than younger ones [ 5 , 6 ]. Similar results were also reported in vineyards soils [ 7 ] and apple orchards [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

Physiological and Ultrastructural Responses to Excessive-Copper-Induced Toxicity in Two Differentially Copper Tolerant Citrus Species

Lin

et al. 2023

Plants

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Over-applied copper (Cu)-based agrochemicals are toxic to citrus trees. However, less information is available discussing the ultrastructural alterations in Cu-stressed citrus species. In the present study, seedlings of Citrus sinensis and Citrus grandis that differed in Cu-tolerance were sandy-cultured with nutrient solution containing 0.5 µM Cu (as control) or 300 µM Cu (as Cu toxicity) for 18 weeks. At the end of the treatments, the physiological parameters and ultrastructural features of the citrus leaves and roots were analyzed. The results indicate that Cu toxicity significantly decreased the ratio of shoot biomass to dry weight, the Cu translocation factor and the total chlorophyll of two citrus species. The anatomical and ultrastructural alterations verified that excessive Cu resulted in starch granules accumulated in the leaves and roots of the two citrus species. Under Cu toxicity, increased root flocculent precipitate and thickened root cell wall might reduce the Cu translocation from citrus roots to the shoots. Compared with C. sinensis, C. grandis maintained a relatively integral root cellular structure under Cu toxicity, which provided a structural basis for a higher Cu tolerance than C. sinensis. The present results increase our understanding of the physiological and ultrastructural responses to Cu toxicity in citrus species.

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Environmental Implications from Long-term Citrus Cultivation and Wide Use of Cu Fungicides in Mediterranean Soils

Cited by 17 publications

References 60 publications

Effect of land-use types on edaphic properties and plant species diversity in Mediterranean agroecosystem

Effect of land-use types on edaphic properties and plant species diversity in Mediterranean agroecosystem

An Eleven-Year Survey on Field Disease Susceptibility of Citrus Accessions to Colletotrichum and Alternaria Species

Physiological and Ultrastructural Responses to Excessive-Copper-Induced Toxicity in Two Differentially Copper Tolerant Citrus Species

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