Contrasting the expression pattern change of polyamine oxidase genes and photosynthetic efficiency of maize (Zea mays L.) genotypes under drought stress

Pakdel, Hadis; Hassani, Seyedeh Batool; Ghotbi-Ravandi, Ali Akbar; Bernard, Françoise

doi:10.1007/s12038-020-00044-3

Cited by 15 publications

(16 citation statements)

References 48 publications

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“…The decrease in plant biomass due to drought stress was higher in the sensitive cultivar (GY605) than in the tolerant cultivars (ZD622, ZS11), which is in line with previous studies on B. napus , B. rapa , B. campestris , and Triticum aestivum (Cha et al, 2020; Grieco et al, 2020; Khanzada et al, 2020; Shawon et al, 2020). Similarly, several previous studies suggested that, under drought stress, the reduction in plant growth attributes is accompanied with a reduction in plants turgor pressure, cell division, cell wall biosynthesis, and cell expansion (B. Li, Feng, et al, 2020; Pakdel et al, 2020; Zaid et al, 2020). A wealth of literature provided ample evidence that drought stress adversely affected plant biomass (shoot and root fresh and dry biomass) in addition to water content in Brassicaceae species (Bhuiyan et al, 2019), B. napus (Dai et al, 2020), B. carinata (Samanta et al, 2020), and B. oleracea (He et al, 2020).…”

Section: Discussionmentioning

confidence: 68%

“…Similarly, several previous studies suggested that, under drought stress, the reduction in plant growth attributes is accompanied with a reduction in plants turgor pressure, cell division, cell wall biosynthesis, and cell expansion (B. Li, Feng, et al, 2020;Pakdel et al, 2020;Zaid et al, 2020). A wealth of literature provided ample evidence that drought stress adversely affected plant biomass (shoot and root fresh and dry biomass) in addition to water content in Brassicaceae species (Bhuiyan et al, 2019), B. napus (Dai et al, 2020), B. carinata (Samanta et al, 2020), and B. oleracea (He et al, 2020).…”

Section: Tolerant Cultivars Showed Enhanced Activities Of Antioxidative Enzymesmentioning

confidence: 74%

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Drought tolerance inBrassica napusis accompanied with enhanced antioxidative protection, photosynthetic and hormonal regulation at seedling stage

Ayyaz

Miao

Hannan

et al. 2021

Physiologia Plantarum

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Climate change, food insecurity, water scarcity, and population growth are some of today's world's frightening problems. Drought stress exerts a constant threat to field crops and is often seen as a major constraint on global agricultural productivity; its intensity and frequency are expected to increase in the near future. The present study investigated the effects of drought stress (15% w/v polyethylene glycol PEG-6000) on physiological and biochemical changes in five Brassica napus cultivars (ZD630, ZD622, ZD619, GY605, and ZS11). For drought stress induction, 3-weekold rapeseed oil seedlings were treated with PEG-6000 in full strength Hoagland nutrient solution for 7 days. PEG treatment significantly decreased the plant growth and photosynthetic efficiency, including primary photochemistry (Fv/Fm) of PSII, intercellular CO 2 , net photosynthesis, chlorophyll contents, and water-use efficiency of all studied B. napus cultivars; however, pronounced growth retardations were observed in cultivar GY605. Drought-stressed B. napus cultivars also experienced a sharp rise in H 2 O 2 generation and malondialdehyde (MDA) content. Additionally, the accumulation of ROS was accompanied by increased activity of enzymatic antioxidants (superoxide dismutase, peroxidase, catalase, ascorbate peroxidase, glutathione reductase, and monodehydroascorbate reductase), although the increase was more obvious in ZD622 and ZS11. Drought stress also caused an increased endogenous hormonal biosynthesis (abscisic acid, jasmonic acid, salicylic acid) and accumulation of total soluble proteins and proline content, but the extent varies in B. napus cultivars.These results suggest that B. napus cultivars have an efficient drought stress tolerance mechanism, as shown by improved antioxidant enzyme activities, photosynthetic and hormonal regulation. | INTRODUCTIONWater stress is an increasingly scarce resource that decreases crop production in many parts of the world. Drought stress is one of the most severe abiotic environmental stress factors affecting crop production worldwide (Kour et al., 2020). Rapid anthropogenic climatic changes affect the annual precipitation pattern, leading to severe drought stress in many agricultural areas (Scott et al., 2014). Acquiring drought tolerance in plants probably involves molecular, cellular, physiological, and developmental adjustments enabling plants to adopt an adequate response to maintain optimal growth and development (Bergmann, 2020). In plants, drought stress adaptive strategies have been categorized as (1) drought tolerance via early flowering (Khadka et al., 2020), (2) drought escape via enhanced water uptake and reduced

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Section: Discussionmentioning

confidence: 68%

Section: Tolerant Cultivars Showed Enhanced Activities Of Antioxidative Enzymesmentioning

confidence: 74%

Drought tolerance inBrassica napusis accompanied with enhanced antioxidative protection, photosynthetic and hormonal regulation at seedling stage

Ayyaz

Miao

Hannan

et al. 2021

Physiologia Plantarum

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“…The reduction was more obvious in drought sensitive GS genotype relative to drought tolerant PS genotype as observed in previous studies on B. napus , Brassica rapa , and B. campestris ( Cha et al, 2020 ; Chen et al, 2020 ; Grieco et al, 2020 ; Khanzada et al, 2020 ; Shawon et al, 2020 ). Drought stress mediated plant growth reduction is mainly associated with the loss of cell turgor pressure, affected the cell wall biosynthesis and reduced the cell division or cell expansion ( Pakdel et al, 2020 ). These results are quite similar to several studies suggesting that drought stress severely affects the plant growth and RWC in B. napus , B. carinata , and Brassica oleracea , respectively ( Dai et al, 2020 ; He et al, 2020 ; Samanta et al, 2020 ).…”

Section: Discussionmentioning

confidence: 99%

Purple stem Brassica napus exhibits higher photosynthetic efficiency, antioxidant potential and anthocyanin biosynthesis related genes expression against drought stress

et al. 2022

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Purple-stem Brassica napus (B. napus) is a phenotype with unique color because of its high anthocyanins content. Anthocyanins are naturally occurring plant pigments that have antioxidants activity and play important role in plant defense against abiotic and biotic stresses. In the present study, drought induced effects on plants were investigated in hydroponically grown seedlings of green stem (GS) and purple stem (PS) genotypes of B. napus. The results of this study showed that the major function of anthocyanins accumulation during drought was to enhance the antioxidant capability and stress tolerance in B. napus plants. Our results showed that drought significantly inhibited the plant growth in terms of decreased biomass accumulation in both genotypes, although marked decline was observed in GS genotype. The reduction in photosynthetic attributes was more noticeable in the GS genotype, whereas the PS genotype showed better performance under drought stress. Under stressful conditions, both the genotype showed excessive accumulation of reactive oxygen species (ROS) and malondialdehyde (MDA), as well as higher levels of antioxidant enzymes activities. Under drought conditions, the GS genotype showed apparent damages on chloroplast deformation like in thylakoid membrane and grana structural distortion and fewer starch grains and bigger plastoglobuli. Moreover, during drought stress, the PS genotype exhibited maximum expression levels of anthocyanins biosynthesis genes and antioxidant enzymes accompanied by higher stress tolerance relative to GS genotype. Based on these findings, it can be concluded that GS genotype found more sensitive to drought stress than the PS genotype. Furthermore this research paper also provides practical guidance for plant biologists who are developing stress-tolerant crops by using anthocyanin biosynthesis or regulatory genes.

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“…Exogenous PAs provided protection under osmotic and cadmium stress [8,9], but the mode of action and the degree of protection depended on the alteration in the PA metabolism; thus, it has been demonstrated that "the more PA, the better" statement cannot be generalized [10,11,13]. Most of these experiments were carried out in growth chambers with photosynthetic photon flux density (PPFD) in the range of 100-270 µmol m 2 s −1 with one day/night regime [8][9][10][11]13,14,22,29,32,34,36]; some of them were conducted under higher light conditions [30,31,41] and none of them under different hours of illumination. In addition, only a few studies are available on the comparison of changes in dedicated components of the PA metabolism under different light conditions [21][22][23][24][25][26], and none of them reported the simultaneous effect of exogenous PA treatments.…”

Section: Discussionmentioning

confidence: 99%

“…Numerous valuable studies have been published on the investigation of PA content and metabolism either under normal growth conditions or during biotic or abiotic stresses in various plant species [28][29][30][31][32][33][34][35][36][37][38]. On the other hand, several studies have been published on monitoring the protective effect of exogenous PAs [8][9][10][11]13,14,[39][40][41].…”

Section: Discussionmentioning

confidence: 99%

Polyamine Metabolism under Different Light Regimes in Wheat

Gondor

Tajti

Hamow

et al. 2021

IJMS

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Although the relationship between polyamines and photosynthesis has been investigated at several levels, the main aim of this experiment was to test light-intensity-dependent influence of polyamine metabolism with or without exogenous polyamines. First, the effect of the duration of the daily illumination, then the effects of different light intensities (50, 250, and 500 μmol m–2 s–1) on the polyamine metabolism at metabolite and gene expression levels were investigated. In the second experiment, polyamine treatments, namely putrescine, spermidine and spermine, were also applied. The different light quantities induced different changes in the polyamine metabolism. In the leaves, light distinctly induced the putrescine level and reduced the 1,3-diaminopropane content. Leaves and roots responded differently to the polyamine treatments. Polyamines improved photosynthesis under lower light conditions. Exogenous polyamine treatments influenced the polyamine metabolism differently under individual light regimes. The fine-tuning of the synthesis, back-conversion and terminal catabolism could be responsible for the observed different polyamine metabolism-modulating strategies, leading to successful adaptation to different light conditions.

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Contrasting the expression pattern change of polyamine oxidase genes and photosynthetic efficiency of maize (Zea mays L.) genotypes under drought stress

Cited by 15 publications

References 48 publications

Drought tolerance inBrassica napusis accompanied with enhanced antioxidative protection, photosynthetic and hormonal regulation at seedling stage

Drought tolerance inBrassica napusis accompanied with enhanced antioxidative protection, photosynthetic and hormonal regulation at seedling stage

Purple stem Brassica napus exhibits higher photosynthetic efficiency, antioxidant potential and anthocyanin biosynthesis related genes expression against drought stress

Polyamine Metabolism under Different Light Regimes in Wheat

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