Changes in some physiological and osmotic parameters of several pistachio genotypes under drought stress

Khoyerdi, Farooq Fahimi; Shamshiri, Mohammad Hossein; Estaji, Ahmad

doi:10.1016/j.scienta.2015.11.028

Cited by 103 publications

(62 citation statements)

References 42 publications

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“…4). Similarly, free proline and soluble sugar levels in PEG-induced water stress on potato , pistachio (Khoyerdi et al, 2016), cassava (Fu et al, 2016), Sesuvium portulacastrum (Slama et al, 2007), Bauhinia variegata (Sinhababu and Kar, 2003), lentil (Muscolo et al, 2014) and Apocynum venetum L. (Zhao and Dai, 2015) were increased as major osmotic adjustment.…”

Section: Discussionmentioning

confidence: 97%

“…In sorghum, plant height, leaf blade biomass and root biomass dropped by 37.63%, 55.56% and 40% when plants subjected to 20% PEG for 28 days (O'Donnell et al, 2013). Leaf area is a good indicator to identify the toxicity of PEG-induced drought stress, in Eucalyptus camaldulensis (Utkhao and Yingjajaval, 2015), pistachio (Khoyerdi et al, 2016), Ipomoea pes-caprae (Sucre and Suárez, 2011) and sorghum (O'Donnell et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

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Physiological, Morphological Changes and Storage Root Yield of Sweetpotato [Ipomoea batatas (L.) Lam.] under PEG-Induced Water Stress

Yooyongwech

Samphumphung

Tisaram

et al. 2017

Not Bot Horti Agrobo

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Sweetpotato is an important tuberous root crop rich in nutrients such as vitamins and carbohydrates, and can grow well in arid regions with less water consuming crop. The aim of this research was to evaluate the storage root yields, physiological, biochemical and morphological traits in sweetpotato cv. 'Japanese Yellow' subjected to polyethylene glycol (PEG)-induced water deficit. At harvest (4 months after planting) the number of storage roots per plant and storage root fresh weight in sweetpotato treated with 5% PEG (−0.54 MPa) in nutrient solution of hydroponic culture declined by 20.0% and 47.4% compared to the control without PEG, respectively. Leaf area and leaf dry weight significantly decreased by 85.6% and 95.3%, respectively when exposed to water deficit stress. Sucrose content (114.7 mg g -1 dry weight; DW) in storage roots of sweetpotato grown under PEG-induced water deficit conditions was enriched by 2.2 fold of control (52.5 mg g -1 DW) and was greater than in storage roots derived from soil culture (70.3 mg g -1 DW). Total soluble sugar in the root and storage root tissues was enriched and may play a key role as osmotic adjustment (OA) in PEG-induced water stressed plants. Free proline and sucrose contents were also dominated in the leaf tissues to maintain the leaf osmotic potential in water stressed plants. In addition, chlorophyll degradation, chlorophyll fluorescence diminution and stomatal closure were found in plants grown under PEG-induced water deficit conditions, leading to reduction in net photosynthetic rate (Pn) and subsequently lesser amounts of glucose and fructose contents in the leaf tissues. Sucrose and free proline in the roots of sweetpotato play a key role as major osmotic adjustment when subjected to PEG-induced water deficit condition. Basic knowledge gained from this research will further be investigated the drought defense mechanism in sweetpotato via osmoregulation system.

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Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

Physiological, Morphological Changes and Storage Root Yield of Sweetpotato [Ipomoea batatas (L.) Lam.] under PEG-Induced Water Stress

Yooyongwech

Samphumphung

Tisaram

et al. 2017

Not Bot Horti Agrobo

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“…Jiang and Joyce () showed that ABA treated Fragaria x ananassa fruits showed increased TA levels compared with untreated fruits. Differing reports have shown both that PPC increases in plants subjected to drought stress, while others showed that these compounds decreased (Petridis et al , Khoyerdi et al ). Therefore, PPC responses under drought stress are not consistent for all plants and tissues.…”

Section: Discussionmentioning

confidence: 99%

Abscisic acid is involved in phenolic compounds biosynthesis, mainly anthocyanins, in leaves of Aristotelia chilensis plants (Mol.) subjected to drought stress

González‐Villagra

Cohen

2018

Physiologia Plantarum

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Abscisic acid (ABA) regulates the physiological and biochemical mechanisms required to tolerate drought stress, which is considered as an important abiotic stress. It has been postulated that ABA might be involved in regulation of plant phenolic compounds biosynthesis, especially anthocyanins that accumulate in plants subjected to drought stress; however, the evidence for this postulate remains elusive. Therefore, we studied whether ABA is involved in phenolic compounds accumulation, especially anthocyanin biosynthesis, using drought stressed Aristotelia chilensis plants, an endemic berry in Chile. Our approach was to use fluridone, an ABA biosynthesis inhibitor, and then subsequent ABA applications to young and fully-expanded leaves of drought stressed A. chilensis plants during 24, 48 and 72 h of the experiment. Plants were harvested and leaves were collected separately to determine the biochemical status. We observed that fluridone treatments significantly decreased ABA concentrations and total anthocyanin (TA) concentrations in stressed plants, including both young and fully-expanded leaves. TA concentrations following fluridone treatment were reduced around fivefold, reaching control plant levels. ABA application restored ABA levels as well as TA concentrations in stressed plant at 48 h of the experiment. We also observed that TA concentrations followed the same pattern as ABA concentrations in the ABA treated plants. Quantitative real-time PCR revealed that AcUFGT gene expression decreased in fully-expanded leaves of stressed plants treated with fluridone, while a subsequent ABA application increased AcUFGT expression. Taken together, our results suggest that ABA is involved in the regulation of anthocyanin biosynthesis under drought stress.

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“…Excessive production of ROS causes oxidative injuries to lipid peroxidation as observed under different stress conditions for different plant species (Khoyerdi et al, 2016;Wang et al, 2015). The lipid peroxidation level was indirectly determined by the content of MDA in this study.…”

Section: Discussionmentioning

confidence: 85%

Assessment of male sterility and antioxidant enzyme activities induced by the chemical hybridization agent SQ-1 in Foxtail Millet (Setaria italica)

Zhang

Guo

Wang

et al. 2017

Emir. J. Food Agric

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Changes in some physiological and osmotic parameters of several pistachio genotypes under drought stress

Cited by 103 publications

References 42 publications

Physiological, Morphological Changes and Storage Root Yield of Sweetpotato [Ipomoea batatas (L.) Lam.] under PEG-Induced Water Stress

Physiological, Morphological Changes and Storage Root Yield of Sweetpotato [Ipomoea batatas (L.) Lam.] under PEG-Induced Water Stress

Abscisic acid is involved in phenolic compounds biosynthesis, mainly anthocyanins, in leaves of Aristotelia chilensis plants (Mol.) subjected to drought stress

Assessment of male sterility and antioxidant enzyme activities induced by the chemical hybridization agent SQ-1 in Foxtail Millet (Setaria italica)

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