Physiological changes in leaves of some mango cultivars as response to exposure to low temperature degrees

Gadallah, Farouk M.; El-Yazal, Mohamed A. Seif; Samad, G. A. Abd-El; Sayed, Ali A.S.

doi:10.15406/hij.2019.03.00141

Cited by 4 publications

(7 citation statements)

References 25 publications

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“…Moreover, the reduction in photosynthetic capacity at low temperatures is associated with a decrease in PSII quantum efficiency, the primary target of damage at low temperatures [1,44]. Chilling damage occurs when membranes acquire more saturated fatty acids due to the exposure to low temperatures [44][45][46]. In Figure 4A, it is discernible that the transplants exposed to chilling stress showed an increase in electrolyte leakage percentage after zero (52.99%) or six days (64.51%) compared to those pretreated with SA.…”

Section: Resultsmentioning

confidence: 99%

“…Guinn [48] suggested that the increase in electrolyte leakage is likely due to chilling-induced water stress. Furthermore, increased electrolyte leakage from chilled plants was attributed to membrane deterioration and corresponded to the presence of leaked inorganic and organic ions [46,[49][50][51][52]. SA role in maintaining the fatty acids' content and ratio in the cell membranes could explain its protection of the cell membrane structure [53].…”

Section: Resultsmentioning

confidence: 99%

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The Role of Salicylic Acid in Mitigating the Adverse Effects of Chilling Stress on “Seddik” Mango Transplants

et al. 2022

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Salicylic acid (SA) was sprayed on “Seddik” mango transplants at concentrations of 0, 0.5, 1, and 1.5 mM. Then, the mango transplants were subjected to 72 h of chilling stress at 4 ± 1 °C, followed by a six-day recovery under greenhouse conditions. Untreated transplants exposed to chilling stress represented the positive control, while those not exposed were the negative control. SA-pretreated mango transplants were compared to the positive and negative controls, evaluating physiological and biochemical changes. The SA concentration of 1.5 mM L−1 was the most efficient in mitigating chilling injury (CI) in mango transplants by maintaining the integrity of the leaves’ cell membrane and minimizing electrolyte leakage (EL), specifically after six days of recovery. SA increased photosynthetic pigment content, total sugar content, and 2, 2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity and decreased proline and total phenolic content in the “Seddik” mango transplants’ leaves. After exposure to chilling stress, the antioxidant enzymes’ internal activities in SA-pretreated chilled mango transplants improved, especially on the sixth day of recovery, compared to the negative control; the transplants nearly attained normal growth levels. Thus, SA can protect plants against the adverse effects of chilling stress.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

The Role of Salicylic Acid in Mitigating the Adverse Effects of Chilling Stress on “Seddik” Mango Transplants

et al. 2022

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“…The ideal temperature range for mango is between 24 °C and 26.7 °C, and at below 10 to 12 °C, these plants begin to suffer from cold/chilling stress [ 20 ]. Mango trees are quite sensitive to cold temperatures (0–15 °C).…”

Section: Abiotic Stresses In Mangomentioning

confidence: 99%

“…The onset of these symptoms is often interconnected with the degeneration of the cell wall membrane, lack of energy production, and increased ROS [ 22 , 23 , 24 ]. The RWC, membrane stability index (MSI), and total free amino acids (TFAA) were significantly reduced, while electrolytes leakage percentage (EC%) was increased when mango leaves were exposed to cold stress at 5–10 °C [ 20 ]. Thus, understanding the biology of low temperatures in mango could form the basis for the development of cold-tolerant cultivars and new cold-protection techniques in the future.…”

Section: Abiotic Stresses In Mangomentioning

confidence: 99%

Molecular Insights into Abiotic Stresses in Mango

Muthuramalingam

Muthamil

Sakthivel

et al. 2023

Plants

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Mango (Mangifera indica L.) is one of the most economically important fruit crops across the world, mainly in the tropics and subtropics of Asia, Africa, and Central and South America. Abiotic stresses are the prominent hindrance that can adversely affect the growth, development, and significant yield loss of mango trees. Understanding the molecular physiological mechanisms underlying abiotic stress responses in mango is highly intricate. Therefore, to gain insights into the molecular basis and to alleviate the abiotic stress responses to enhance the yield in the mere future, the use of high-throughput frontier approaches should be tied along with the baseline investigations. Taking these gaps into account, this comprehensive review mainly speculates to provide detailed mechanisms and impacts on physiological and biochemical alterations in mango under abiotic stress responses. In addition, the review emphasizes the promising omics approaches in unraveling the candidate genes and transcription factors (TFs) responsible for abiotic stresses. Furthermore, this review also summarizes the role of different types of biostimulants in improving the abiotic stress responses in mango. These studies can be undertaken to recognize the roadblocks and avenues for enhancing abiotic stress tolerance in mango cultivars. Potential investigations pointed out the implementation of powerful and essential tools to uncover novel insights and approaches to integrate the existing literature and advancements to decipher the abiotic stress mechanisms in mango. Furthermore, this review serves as a notable pioneer for researchers working on mango stress physiology using integrative approaches.

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“…[7][8][9] A mango need an optimum temperature range of 24-26.7 o C and minimum threshold temperature is 10-12 o C below this plant shows chilling injury. 10,11 Mango trees show high susceptibility to low temperature (0-15 o C). Young trees are damaged by low temperature variability among cultivars is apparent after a cold spell, but precise information on this subject is non-existent.…”

Section: Introductionmentioning

confidence: 99%

Leaf pigments and chlorophyll fluorescence patterns in leaves of mango as affected by low temperature degrees under field and laboratory conditions

Gadallah¹,

El-Yazal²,

Abdel-Samad³

et al. 2020

HIJ

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Low temperature is a major environmental and evolutionary driver that limits the geographical distribution of plant species worldwide. The relationship between low temperature stress and the response of some different mango cultivars was monitored on some physiological and biochemical events that occur following cold exposure of mango trees leaves. These changes were studied under in vitro (controlled temperatures). However, mango trees were tested to study the changes in leaf pigments and chlorophyll fluorescence of some mango cultivars in response to exposure to low temperature. To verify this objective, 12 popular commonly mango cultivars (25 years old) which grown in private orchard in Fayoum Governorate, Egypt were selected for this study which carried out during the period from November to March of years; 2012 and 2013. The selected cultivars were: Alphonso, Baladi, Bullock's Heart, Helmand, Hindi Besennara, Mabrouka, Mestekawy, Nabeeh, Oweisi, Spates, Taimour and Zebda. Based on the obtained results, it can be stated that in cold storage trial; It was found that chlorophyll (a) level was the highest by Spates cultivar and the lowest one by the cultivar of Mabrouka at storage of 5°C and 10°C as well. Chlorophyll (b) level was the highest by the cultivar of Spates and the minimum one by Ewais cultivar at 5°C of storage while, the cultivars of Spates and Mabrouka given the highest and lowest level at 10°C of storage, respectively. Total chlorophyll values in leaves reached its maximal by the cultivar of Spates and the minimal by Mabrouka at 5°C and 10°C of storage. The obtained results explained that the level of carotenoids reached its peak at 5°C and 10°C of storage by the cultivars of Hindy Besennara and bullock's Heart, respectively. While, the lowest one was recorded by the cultivars of Zebda and Helmand, respectively. The levels of anthocyanin in leaves were significantly differed as affected by the cultivars and storage, indicating that the cultivars of Ewais and Taimour showed the highest levels of anthocyanin and the lowest ones were recorded by the cultivars of Zebda and Alphonso at 5°C and 10°C of storage, respectively. It can be seen that the highest decline in Fv/Fm ratio were given by the cultivar of Balady while, the higher ratio was recorded by Nabeeh cultivar at 5°C of storage. At 10°C of storage, Nabeeh cultivar gave the highest ratio of Fv/Fm and the lowest one was obtained by Mestekawy one. A noticeable decline in Fv/Fm values was observed as storage period (5°C and 10°C) was progressed reaching the minimum level by day 10 of storage.

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Physiological changes in leaves of some mango cultivars as response to exposure to low temperature degrees

Cited by 4 publications

References 25 publications

The Role of Salicylic Acid in Mitigating the Adverse Effects of Chilling Stress on “Seddik” Mango Transplants

The Role of Salicylic Acid in Mitigating the Adverse Effects of Chilling Stress on “Seddik” Mango Transplants

Molecular Insights into Abiotic Stresses in Mango

Leaf pigments and chlorophyll fluorescence patterns in leaves of mango as affected by low temperature degrees under field and laboratory conditions

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