Do soil properties and ecophysiological responses of oak (Quercus brantii Lindl.) correlate with the rate of dieback?

Nejad, Z Azim; Badehian, Ziaedin; Nejad, Abdolhossein Rezaei; Bazot, Stéphane

doi:10.1007/s00468-021-02142-7

Cited by 8 publications

(5 citation statements)

References 83 publications

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“…Furthermore, the results of research on oak species (Quercus brantii Lindl.) showed that an increase in drought stress caused an increase in MDA content and resulted in an increase in Ca content in the leaves [43]. In our study, no significant differences in the content of MDA between the undefoliated and defoliated black pine trees were found, but significant differences were found for all other species.…”

Section: Speciescontrasting

confidence: 60%

“…In our study, a significantly higher concentration of P was found in the defoliated pubescent oak trees and black pine trees compared to the undefoliated trees. Furthermore, a previous study on sampled leaves of the Persian oak found that the concentrations of Ca increased with increased drought [43]. Potočić et al [44] found that drought caused low needle Ca concentrations in Silver fir trees of all defoliation classes.…”

Section: Foliar Nutrition Status Of Four Selected Mediterranean Speciesmentioning

confidence: 95%

“…During the dry period, cell division and leaf growth are reduced due to reduced cell turgor. There is also a decrease in the rate of photosynthesis because the intake of CO 2 is limited during drought conditions, which subsequently limits the growth of leaves [43]. Thus, due to the increase in defoliation, the remaining green leaves of trees in categories with higher degrees of defoliation must absorb a greater amount of Ca to perform vital activities such as photosynthesis.…”

Section: Foliar Nutrition Status Of Four Selected Mediterranean Speciesmentioning

confidence: 99%

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Are Foliar Nutrition Status and Indicators of Oxidative Stress Associated with Tree Defoliation of Four Mediterranean Forest Species?

Lovreškov

Redovniković

Limić

et al. 2022

Plants

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Mediterranean forest ecosystems in Croatia are of very high significance because of the ecological functions they provide. This region is highly sensitive to abiotic stresses such as air pollution, high sunlight, and high temperatures alongside dry periods; therefore, it is important to monitor the state of these forest ecosystems and how they respond to these stresses. This study was conducted on trees in situ and focused on the four most important forest species in the Mediterranean region in Croatia: pubescent oak (Quercus pubescens Willd.), holm oak (Quercus ilex L.), Aleppo pine (Pinus halepensis Mill.) and black pine (Pinus nigra J. F. Arnold.). Trees were selected and divided into two groups: trees with defoliation of >25% (defoliated) and trees with defoliation of ≤25% (undefoliated). Leaves and needles were collected from selected trees. Differences in chlorophyll content, hydrogen peroxide content, lipid peroxidation and enzyme activity (superoxide dismutase, catalase, ascorbate peroxidase, non-specific peroxidase), and nutrient content between the defoliated and undefoliated trees of the examined species were determined. The results showed that there were significant differences for all species between the defoliated and undefoliated trees for at least one of the examined parameters. A principal component analysis showed that the enzyme ascorbate peroxidase can be an indicator of oxidative stress caused by ozone. By using oxidative stress indicators, it is possible to determine whether the trees are under stress even before visual damage occurs.

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Section: Speciescontrasting

confidence: 60%

Section: Foliar Nutrition Status Of Four Selected Mediterranean Speciesmentioning

confidence: 95%

Section: Foliar Nutrition Status Of Four Selected Mediterranean Speciesmentioning

confidence: 99%

See 1 more Smart Citation

Are Foliar Nutrition Status and Indicators of Oxidative Stress Associated with Tree Defoliation of Four Mediterranean Forest Species?

Lovreškov

Redovniković

Limić

et al. 2022

Plants

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show abstract

“…The result indicates a direct and significant impact on the nutrient content of tree leaves, independent of soil nutrient availability, as all trees may have similar opportunities for accessing nutrients from the soil and applied fertilizer. In oak tree decline, Azim Nejad et al [43] also reported that the physical and chemical properties of soil are not determinant factors. Moreover, there were no significant differences in the soil properties of samples collected from healthy trees and those infected with HLB, thus, it is unlikely that the difference in foliar mineral concentrations between infected and PCRnegative trees was due to the differences in soil [44].…”

Section: Discussionmentioning

confidence: 99%

Impact of Twig-Tip Dieback on Leaf Nutrient Status and Resorption Efficiency of Mango Trees

Asis,

Niscioli

2024

Preprint

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Mango twig-tip dieback (MTTD) is a new type of mango decline, but its impact on the trees’ mineral nutrition is unknown. This study was conducted to determine the effect of MTTD infection on the nutrient status, balance, and resorption efficiency (RE) of mango. Leaf nutrient concentrations and deviation from the optimum percentage (DOP) indices of ‘Kensington Pride’ (KP) mango trees with low (LD) and high (HD) levels of MTTD infections were analyzed to compare the foliar nutrition status and nutrient balance between the LD and HD trees. Moreover, the nutrient resorption efficiency of MTTD-infected dried leaves (RED) was compared with the resorption efficiency of healthy (RES) leaves of KP mangoes. The concentrations of Ca, Mg, Cu, Fe, Mn, and Zn were lower in the HD trees than in the LD trees. But the K content was higher in the HD trees, and its DOP index was sufficient, while the K concentration was low and deficient level in LD trees. Moreover, DOP indices for Ca, Mn, and Zn were less deficient in LD trees than in HD trees, and overall nutrient imbalances were exacerbated in HD trees. RED was significantly lower than RES for N, P, S, Cu, Fe, and Zn but significantly higher than RES for K. The study underscores the significant influence of MTTD on the mineral nutrition of KP mangoes, revealing distinct nutrient variations between trees with low and high MTTD infection levels. These findings have important implications for mango crop management, emphasizing the need for targeted nutrient interventions to address imbalances induced by MTTD and enhance the overall health and resistance of mango trees against MTTD infection.

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“…The result indicates a direct and significant impact on the nutrient content of tree leaves, independent of soil nutrient availability, as all trees may have similar opportunities for accessing nutrients from the soil and applied fertilizer. In oak tree decline, Azim Nejad et al [44] also reported that the physical and chemical properties of soil are not determinant factors. Moreover, there were no significant differences in the soil properties of samples collected from healthy trees and those infected with HLB, thus, it is unlikely that the difference in foliar mineral concentrations between infected and PCRnegative trees was due to the differences in soil [45].…”

Section: Discussionmentioning

confidence: 99%

Impact of Twig-Tip Dieback on Leaf Nutrient Status and Resorption Efficiency of Mango (<em>Mangifera indica</em> L.) Trees

Asis,

Niscioli

2024

Preprint

View full text Add to dashboard Cite

Mineral nutrition is essential for plant growth and interaction of plants with biotic and abiotic stresses. Mango twig-tip dieback (MTTD) is a new type of mango decline, but its impact on the trees’ mineral nutrition is unknown. This study was conducted to determine the effect of MTTD infection on the nutrient status, balance, and resorption efficiency (RE) of mango. Leaf nutrient concentrations and deviation from the optimum percentage (DOP) indices of ‘Kensington Pride’ (KP) mango trees with low (LD) and high (HD) levels of MTTD infections were analyzed to compare the foliar nutrition status and nutrient balance between the LD and HD trees. Moreover, the nutrient resorption efficiency of MTTD-infected dried leaves (RED) was compared with the resorption efficiency of healthy (RES) leaves of KP mangoes. The concentrations of the total Ca, Mg, Cu, Fe, Mn, and Zn were lower in the HD trees than in the LD trees. But the total K content was higher in the HD trees, and its DOP index was sufficient, while the total K concentration was low and deficient level in LD trees. Moreover, DOP indices for total Ca, Mn, and Zn were less deficient in LD trees than in HD trees, and overall nutrient imbalances were exacerbated in HD trees. RED was significantly lower than RES for the total N, P, S, Cu, Fe, and Zn but significantly higher than RES for K. The study underscores the significant influence of MTTD on the mineral nutrition of KP mangoes, revealing distinct nutrient variations between trees with low and high MTTD infection levels. These findings have important implications for mango crop management, emphasizing the need for targeted nutrient interventions to address imbalances induced by MTTD and enhance the overall health and resistance of mango trees against MTTD infection.

show abstract

Do soil properties and ecophysiological responses of oak (Quercus brantii Lindl.) correlate with the rate of dieback?

Cited by 8 publications

References 83 publications

Are Foliar Nutrition Status and Indicators of Oxidative Stress Associated with Tree Defoliation of Four Mediterranean Forest Species?

Are Foliar Nutrition Status and Indicators of Oxidative Stress Associated with Tree Defoliation of Four Mediterranean Forest Species?

Impact of Twig-Tip Dieback on Leaf Nutrient Status and Resorption Efficiency of Mango Trees

Impact of Twig-Tip Dieback on Leaf Nutrient Status and Resorption Efficiency of Mango (<em>Mangifera indica</em> L.) Trees

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