Leaf morpho-physiology and phytochemistry of olive trees as affected by cultivar type and increasing aridity

Touati, Said; Ayadi, Jawaher; Bouajila, Abdelhakim; Acila, Smail; Rahmani, Rami; Bouajila, Jalloul; Debouba, Mohamed

doi:10.1007/s40333-022-0078-9

Cited by 2 publications

(2 citation statements)

References 80 publications

(83 reference statements)

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“…Through the study of the ecological stoichiometric characteristics of plant organs, the nutrient recycling status in the process of plant growth, reproduction, regeneration and restoration can be grasped. Previous studies have shown that there is a certain correlation between the ecological stoichiometric characteristics of plant leaves, stems and roots at the individual level [ 11 , 12 ]. The stable metabolism and growth and development of plants reflect the response and adaptation of plants to environmental changes [ 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

Ecological Stoichiometric Characteristics in Organs of Ammopiptanthus mongolicus in Different Habitats

Duan

Zhang

Xin

et al. 2023

Plants

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The essence of plant ecological stoichiometry is to study the relationships between species and their environment, including nutrient absorption, utilization and cycling processes as well as the nutrient limitation of plants. Plants can regulate nutrient elements and adapt to environmental changes. To understand the adaptation mechanism, it is important to take plants as a whole and quantify the correlation between the chemometrics of different organs. Ammopiptanthus mongolicus is within the second-class group of rare–endangered plants in China and is the only evergreen broad-leaved shrub in desert areas. We analyzed the ecological stoichiometric characteristics of leaves, stems, roots, flowers and seeds of A. mongolicus in five habitats, namely fixed sandy land, semi-fixed sandy land, stony–sandy land, alluvial gravel slope and saline–alkali land. We found that (1) the nutrient contents of N, P and K were in the order of seed > flower > leaf > root > stem. The enrichment of the N, P and K in the reproductive organs promoted the transition from vegetative growth to reproductive growth. Additionally, (2) the contents of C, N, P and K and their stoichiometric ratios in different organs varied among different habitat types. The storage capacity of C, N and P was higher in sandy soil (fixed and semi-fixed sandy land), whereas the content of K was higher in gravelly soil (stony–sandy land and alluvial gravel slope), and the C:N, C:P and N:P were significantly higher in gravelly soil than those in sandy soil. A. mongolicus had higher nutrient use efficiency in stony–sandy land and alluvial gravel slope. Furthermore, (3) the C:N and N:P ratios in each organ were relatively stable among different habitats, whereas the K:P ratio varied greatly. The N:P ratios of leaves were all greater than 16 in different habitats, indicating that the growth was mainly limited by P. Moreover, (4) except for the P element, the content of each element and its stoichiometric ratio were affected by the interaction between organs and habitat. Habitat had a greater impact on C content, whereas organs had a greater influence on N, P and K content and C:N, C:P, C:K and N:P.

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Section: Introductionmentioning

confidence: 99%

Ecological Stoichiometric Characteristics in Organs of Ammopiptanthus mongolicus in Different Habitats

Duan

Zhang

Xin

et al. 2023

Plants

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“…The impact of various factors on the phytochemistry of medicinal plants if significant, with environmental factors being the most prominent (Ncube et al, 2012;Ousaaid et al, 2019). The diversity in phytochemical content of medicinal plants collected from different geo-biological sources is well-established (Agrawal et al, 2021;Kumar et al, 2017;Senhaji et al, 2020;Touati et al, 2022) and this variability has a direct impact on their in vitro and in vivo biological properties. In light of this, our study aims to assess the antioxidant activity, phenolic and flavonoid contents of Ajuga iva samples collected from different geographical locations in the Fez Meknes regions.…”

Section: Introductionmentioning

confidence: 99%

Impact of Geographical Conditions on Phenolic and Flavonoid Contents and Antioxidant Activity of Different Extracts of Ajuga iva

Lahrizi,

Errachidi,

Ghadraoui

2024

IJARe

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In the present investigation, various cultivars of Ajuga iva were collected from different locations in Morocco in 2022. These cultivars were subjected to extraction using different solvents, namely water, ethanol and methanol, to obtain extracts from their aerial parts. The extracts were then analyzed to determine their total phenolic content, total flavonoid content, total sugar content, hydrolysable tannin content, condensed tannin content and antioxidant activity. The results obtained from the analysis revealed the following quantities for the different parameters: The total phenolic content ranged from 226.04±8.47 to 22.59±2.43 mg GAE/g dw, the total flavonoid content ranged from 22.27±0.11 to 3.35±0.006 mg QE/g dw, the total sugar content ranged from 38.78±2.56 to 2.88±0.18 mg/g dw, the reducing sugar content ranged from 7.17±0.45 to 0.41±0.007 mg/g dw, the hydrolysable tannin content ranged from 12.25±0.017 to 0.75±0.15 mg TAE/g dw, the condensed tannin content ranged from 25.49±0.53 to 3.35±1.85 mg/g dw and the total antioxidant capacity ranged from 0.18±0.012 to 0.010±0.004 mg AAE/g dw. Furthermore, a principal component analysis was conducted to assess the relationship between the different parameters. The analysis revealed a strong correlation between the total phenolic content, total flavonoid content and hydrolysable tannin content with the total antioxidant capacity. This suggests that these compounds contribute significantly to the antioxidant capacity of Ajuga iva. Overall, the findings of this study demonstrate that Ajuga iva contains substantial amounts of bioactive compounds and possesses a noteworthy antioxidant capacity. These results contribute to the understanding of the chemical composition and potential health benefits of Ajuga iva.

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Leaf morpho-physiology and phytochemistry of olive trees as affected by cultivar type and increasing aridity

Cited by 2 publications

References 80 publications

Ecological Stoichiometric Characteristics in Organs of Ammopiptanthus mongolicus in Different Habitats

Ecological Stoichiometric Characteristics in Organs of Ammopiptanthus mongolicus in Different Habitats

Impact of Geographical Conditions on Phenolic and Flavonoid Contents and Antioxidant Activity of Different Extracts of Ajuga iva

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