Hypoxia and Anoxia Stress: Plant responses and tolerance mechanisms

Zahra, Noreen; Hafeez, Muhammad Bilal; Shaukat, Kanval; Wahid, Abdul; Hussain, Sadam; Naseer, Rubina; Raza, Ali; Iqbal, Shahid; Farooq, Muhammad

doi:10.1111/jac.12471

Cited by 53 publications

(26 citation statements)

References 269 publications

(300 reference statements)

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“…The reduction in crop productivity by 51–82% on a global scale is primarily influenced by abiotic stress factors, such as drought, salinity, heat, cold, toxic heavy metals, hypoxia and anoxia, waterlogging, and nutrient imbalance ( Cooke and Leishman, 2016 ; Zahra et al, 2021 ; Raza et al, 2022 ). Contemporary climate change notably imparts drought and heat stress, two major abiotic stress factors resulting in crop loss and productivity ( Zandalinas et al, 2018 ).…”

Section: Introductionmentioning

confidence: 99%

Multidimensional Role of Silicon to Activate Resilient Plant Growth and to Mitigate Abiotic Stress

et al. 2022

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Sustainable agricultural production is critically antagonistic by fluctuating unfavorable environmental conditions. The introduction of mineral elements emerged as the most exciting and magical aspect, apart from the novel intervention of traditional and applied strategies to defend the abiotic stress conditions. The silicon (Si) has ameliorating impacts by regulating diverse functionalities on enhancing the growth and development of crop plants. Si is categorized as a non-essential element since crop plants accumulate less during normal environmental conditions. Studies on the application of Si in plants highlight the beneficial role of Si during extreme stressful conditions through modulation of several metabolites during abiotic stress conditions. Phytohormones are primary plant metabolites positively regulated by Si during abiotic stress conditions. Phytohormones play a pivotal role in crop plants’ broad-spectrum biochemical and physiological aspects during normal and extreme environmental conditions. Frontline phytohormones include auxin, cytokinin, ethylene, gibberellin, salicylic acid, abscisic acid, brassinosteroids, and jasmonic acid. These phytohormones are internally correlated with Si in regulating abiotic stress tolerance mechanisms. This review explores insights into the role of Si in enhancing the phytohormone metabolism and its role in maintaining the physiological and biochemical well-being of crop plants during diverse abiotic stresses. Moreover, in-depth information about Si’s pivotal role in inducing abiotic stress tolerance in crop plants through metabolic and molecular modulations is elaborated. Furthermore, the potential of various high throughput technologies has also been discussed in improving Si-induced multiple stress tolerance. In addition, a special emphasis is engrossed in the role of Si in achieving sustainable agricultural growth and global food security.

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Section: Introductionmentioning

confidence: 99%

Multidimensional Role of Silicon to Activate Resilient Plant Growth and to Mitigate Abiotic Stress

et al. 2022

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“…Supporting the second speculation, it has been determined that the detrimental effect of waterlogging on aerial biomass is not evident during the event but appears once waterlogging is removed (de San Celedonio et al, 2017) being plant resources crucial for recovery after waterlogging remotion (Ciancio et al, 2021;Zahra et al, 2021).…”

Section: Source-sink Manipulations During Post-anthesis In Wheat Havementioning

confidence: 98%

“…Grain weight penalization due to waterlogging during pre‐anthesis could be related to its negative effect on potential grain weight, which is determined during the pre‐anthesis phase (Calderini et al, 1999), and/or by the delayed effect of waterlogging on leaf senescence that takes place once the waterlogging is released (de San Celedonio et al, 2017) reducing the magnitude of actual photosynthesis during the grain‐filling period. Supporting the second speculation, it has been determined that the detrimental effect of waterlogging on aerial biomass is not evident during the event but appears once waterlogging is removed (de San Celedonio et al, 2017) being plant resources crucial for recovery after waterlogging remotion (Ciancio et al, 2021; Zahra et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Source‐sink limitations for grain weight in wheat and barley under waterlogging conditions during pre‐anthesis

Becheran

Miralles

Abeledo

et al. 2021

J Agronomy Crop Science

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In wheat and barley, grain yield is strongly affected by waterlogging, especially during the period immediately previous to anthesis. Although waterlogging reduces grain yield mainly by reductions in grain number, mean grain weight (MGW) is also frequently reduced. The aim of this work was to determine whether increases in the source-sink ratio produces smaller reductions in MGW due to waterlogging in wheat and barley. Two experiments were carried out combining a waterlogging condition 20 days pre-anthesis, two soil N conditions at sowing and source-sink manipulations during grain-filling (untrimmed or 50% trimmed spikes). Waterlogging reduced MGW in both species up to 35% in wheat and 44% in barley. The negative effect of waterlogging on MGW was intensified with warmer temperatures and higher atmospheric demand. Increases in the source-sink ratio during the grain-filling period (by trimming treatments) showed a positive impact on MGW in wheat (up to 40%) and barley (up to 20%) under waterlogging conditions. For both species, grain weight response to increases in source-sink ratio was higher at lower grain weight and/or spike hierarchies (i.e. spikes from tillers). Our results showed that waterlogging during pre-anthesis affected grain weight through a reduction in the source during grain-filling and a possible impact on potential grain weight, depending on the intensity of the stress.

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“…To compensate this lack of aerobic energy, the cell switches to produce ATP by anaerobic glycolysis. Basically, hypoxia/anoxia causes a decrease in ATP production, but this decrease is more significant in the anoxia-intolerant plants; this suggests that the ability of the anoxia-tolerant species to sustain their energy supply might be the key factor for survival under anoxia/hypoxia (Figure 2; Crawford, 1992;Fagerstedt, 1994, 1995;Nakamura and Noguchi, 2020;Zahra et al, 2021). Nevertheless, response to oxygen deprivation is more complex than it seems and requires further investigation at different plants levels.…”

Section: Anoxia/hypoxia and Cell Metabolic Changesmentioning

confidence: 99%

“…Nevertheless, response to oxygen deprivation is more complex than it seems and requires further investigation at different plants levels. Tolerance to hypoxia/anoxia, however, appears to depend on a dual morphological and metabolic adaptations which are specific to species and tissue types (Kennedy et al, 1992;Ratcliffe, 1995;Mariani and Ferrante, 2017;Nakamura and Noguchi, 2020;Zahra et al, 2021).…”

Section: Anoxia/hypoxia and Cell Metabolic Changesmentioning

confidence: 99%

Physiological and Biochemical Response of Tropical Fruits to Hypoxia/Anoxia

Benkeblia

2021

Front. Plant Sci.

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Aerobic respiration and oxygen consumption are indicators of routine metabolic rate, and dissolved oxygen in plant tissues is one of the most important environmental factors affecting their survival. The reduction of available O2 leads to hypoxia which causes a limitation of the oxidative phosphorylation; when O2 is absent, tissues generate ATP by activating the fermentative glycolysis to sustain glycolysis in the absence of mitochondrial respiration, which results in the production of lactate. Overall, hypoxia was reported to often decrease the respiration rate (O2 uptake) and delay the climacteric rise of ethylene in climacteric fruits by inhibiting action, thus delaying their ripening. Much research has been done on the application of postharvest hypoxia and anoxia treatment to temperate fresh crops (controlled or modified atmosphere), however, very few reported on tropical commodities. Indeed, the physiological mode of action of low or absence of oxygen in fresh crops is not well understood; and the physiological and biochemical bases of the effects low or absence of O2 are also yet to be clarified. Recent investigations using omics technologies, however, have provided useful information on the response of fresh fruits and vegetables to this abiotic stress. The aims of this review are to (i) report on the oxygen exchange in the crops tissue, (ii) discuss the metabolic responses to hypoxia and anoxia, and (iii) report the physiological and biochemical responses of crops tissues to these abiotic stresses and the potential benefits of these environmental conditions.

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Hypoxia and Anoxia Stress: Plant responses and tolerance mechanisms

Cited by 53 publications

References 269 publications

Multidimensional Role of Silicon to Activate Resilient Plant Growth and to Mitigate Abiotic Stress

Multidimensional Role of Silicon to Activate Resilient Plant Growth and to Mitigate Abiotic Stress

Source‐sink limitations for grain weight in wheat and barley under waterlogging conditions during pre‐anthesis

Physiological and Biochemical Response of Tropical Fruits to Hypoxia/Anoxia

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