Transcriptomic and physiological analysis reveals interplay between salicylic acid and drought stress in citrus tree floral initiation

Khan, Faiza Shafique; Gan, Zhi-Meng; Li, En-Qing; Ren, Meng‐Ke; Hu, Chun-Gen; Zhang, Jin‐Zhi

doi:10.1007/s00425-021-03801-2

Cited by 25 publications

(25 citation statements)

References 103 publications

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“…Thus, SA application recovered plant growth in drought-stressed A. chilensis plants, with respect to drought-stressed plants without SA treatment ( Table 1 ). Our results agree with Chen et al [ 39 ], where they showed that SA application increased CO 2 assimilation and plant growth in drought-stressed Zoysia japonica plants. Recently, Shemi et al [ 64 ] showed that SA treatment increased about 25% plant growth and crop yield in Zea mays plants subjected to drought stress due to higher CO 2 assimilation and stomatal conductance.…”

Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 99%

“…Salicylic acid (SA) is a plant hormone regulating plant growth and development under non-stressed conditions [ 37 , 38 , 39 ]. Currently, SA has been suggested as an important molecule involved in ameliorating plant drought stress [ 38 , 39 , 40 , 63 ]. However, the physiological and biochemical mechanisms involved on drought stress tolerance induced by SA in plants have not been well understood [ 42 , 43 ].…”

Section: Discussionmentioning

confidence: 99%

“…Among plant hormones, salicylic acid (SA) is involved in plant defense against microbial pathogens, activating the systemic acquired resistance (SAR) [ 34 , 35 ]. Under non-stressed conditions, SA plays an important role in nutrient uptake, cell elongation, photosynthetic pigment levels, photosynthetic activity, and source-to-sink regulation, regulating plant growth and development [ 36 , 37 , 38 , 39 ]. Currently, SA has been suggested as an important molecule involved in plant tolerance to drought stress [ 38 , 40 ].…”

Section: Introductionmentioning

confidence: 99%

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Salicylic Acid Improves Antioxidant Defense System and Photosynthetic Performance in Aristotelia chilensis Plants Subjected to Moderate Drought Stress

González‐Villagra

Reyes-Díaz

Tighe‐Neira

et al. 2022

Plants

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Salicylic acid (SA) has been shown to ameliorate drought stress. However, physiological and biochemical mechanisms involved in drought stress tolerance induced by SA in plants have not been well understood. Thus, this study aimed to study the role of SA application on enzymatic and non-enzymatic antioxidants, photosynthetic performance, and plant growth in A. chilensis plants subjected to moderate drought stress. One-year-old A. chilensis plants were subjected to 100% and 60% of field capacity. When plants reached moderate drought stress (average of stem water potential of −1.0 MPa, considered as moderate drought stress), a single SA application was performed on plants. Then, physiological and biochemical features were determined at different times during 14 days. Our study showed that SA application increased 13.5% plant growth and recovered 41.9% AN and 40.7% gs in drought-stressed plants on day 3 compared to drought-stressed plants without SA application. Interestingly, SOD and APX activities were increased 85% and 60%, respectively, in drought-stressed SA-treated plants on day 3. Likewise, SA improved 30% total phenolic content and 60% antioxidant capacity in drought-stressed A. chilensis plants. Our study provides insight into the SA mechanism to tolerate moderate drought stress in A. chilensis plants.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Salicylic Acid Improves Antioxidant Defense System and Photosynthetic Performance in Aristotelia chilensis Plants Subjected to Moderate Drought Stress

González‐Villagra

Reyes-Díaz

Tighe‐Neira

et al. 2022

Plants

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“…Thus, it is very important to study the mechanisms of citrus response to drought stress. Previous reports revealed that a series of changes occurred in citrus under drought stress, such as physiological changes (stomatal closure, reduction in leaf water potential and gas exchange, and hydraulic redistribution), biochemical changes (production of osmolytes, increases in antioxidant enzyme activities, changes in amino acid metabolism and synthesis of hormones), as well as molecular changes (signal transduction, gene expression changes and DNA methylation) [ 12 , 13 , 14 , 15 ]. Cuticular waxes play an important role in the plant’s response to drought stress [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

Transcriptome and Physiological Analyses of a Navel Orange Mutant with Improved Drought Tolerance and Water Use Efficiency Caused by Increases of Cuticular Wax Accumulation and ROS Scavenging Capacity

Liang

Wan

et al. 2022

IJMS

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Drought is one of the main abiotic stresses limiting the quality and yield of citrus. Cuticular waxes play an important role in regulating plant drought tolerance and water use efficiency (WUE). However, the contribution of cuticular waxes to drought tolerance, WUE and the underlying molecular mechanism is still largely unknown in citrus. ‘Longhuihong’ (MT) is a bud mutant of ‘Newhall’ navel orange with curly and bright leaves. In this study, significant increases in the amounts of total waxes and aliphatic wax compounds, including n-alkanes, n-primary alcohols and n-aldehydes, were overserved in MT leaves, which led to the decrease in cuticular permeability and finally resulted in the improvements in drought tolerance and WUE. Compared to WT leaves, MT leaves possessed much lower contents of malondialdehyde (MDA) and hydrogen peroxide (H2O2), significantly higher levels of proline and soluble sugar, and enhanced superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD) activities under drought stress, which might reduce reactive oxygen species (ROS) damage, improve osmotic regulation and cell membrane stability, and finally, enhance MT tolerance to drought stress. Transcriptome sequencing results showed that seven structural genes were involved in wax biosynthesis and export, MAPK cascade, and ROS scavenging, and seven genes encoding transcription factors might play an important role in promoting cuticular wax accumulation, improving drought tolerance and WUE in MT plants. Our results not only confirmed the important role of cuticular waxes in regulating citrus drought resistance and WUE but also provided various candidate genes for improving citrus drought tolerance and WUE.

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Putrescine, in Combination with Gibberellic Acid and Salicylic Acid, Improves Date Palm Fruit Quality via Triggering Protein and Carbohydrate Accumulation and Enhancing Mineral, Amino Acid, Sugar, and Phytohormone Acquisition

Talaat,

Nesiem,

Gadalla

et al. 2023

J Plant Growth Regul

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Putrescine (Put), gibberellic acid (GA3), and salicylic acid (SA) are involved in improving fruit growth and development. This is the first study investigating the effect of 1 mM Put, 100 mg L-1 GA3, and 100 mg L-1 SA on Phoenix dactylifera, cv. Zaghloul fruits. The experiment was conducted in a completely randomized block design during two successive seasons and five treatments [control (distilled water spray), Put, Put + GA3, Put + SA, and Put + GA3 + SA] were sprayed at the Hababouk (cell division) stage and Kimri [unripe green (cell elongation)] stage. Our results showed that all treatments significantly improved the yield and quality of ‘Zaghloul’ fruit by increasing the dry matter, crude fiber, ash, total soluble solids, (reducing, non-reducing, and total soluble) sugars, carbohydrate, protein, nitrogen, phosphorus, potassium, calcium, magnesium, sodium, zinc, iron, and manganese content as well as the peroxidase and catalase activity. Compared with the control treatment, exogenous applications also enhanced the amino acid (glutamic acid, aspartic acid, proline, glycine, alanine, arginine, cysteine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, serine, threonine, tyrosine, valine) acquisition and phytohormone (indole-3-acetic acid, cytokinins, GA3, SA) content, while decreasing the percentage of moisture, total acidity, total phenols, and tannins. The novel evidence indicates that among all treatments, application of diamine (Put), in combination with phytohormones (GA3 and SA), has the greatest effect on improving ‘Zaghloul’ fruit yield by up-regulating the nutrient acquisition, sugar accumulation, amino acid profile, antioxidant response, and phytohormone performance. These findings support the use of Put in conjunction with GA3 and SA to improve fruit yield and quality.

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Transcriptomic and physiological analysis reveals interplay between salicylic acid and drought stress in citrus tree floral initiation

Cited by 25 publications

References 103 publications

Salicylic Acid Improves Antioxidant Defense System and Photosynthetic Performance in Aristotelia chilensis Plants Subjected to Moderate Drought Stress

Salicylic Acid Improves Antioxidant Defense System and Photosynthetic Performance in Aristotelia chilensis Plants Subjected to Moderate Drought Stress

Transcriptome and Physiological Analyses of a Navel Orange Mutant with Improved Drought Tolerance and Water Use Efficiency Caused by Increases of Cuticular Wax Accumulation and ROS Scavenging Capacity

Putrescine, in Combination with Gibberellic Acid and Salicylic Acid, Improves Date Palm Fruit Quality via Triggering Protein and Carbohydrate Accumulation and Enhancing Mineral, Amino Acid, Sugar, and Phytohormone Acquisition

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