Changes in germination and glyoxylate and respiratory enzymes of<i>Pinus</i><i>pinea</i>seeds under various abiotic stresses

Muscolo, Adele; Sidari, Maria; Mallamaci, Carmelo; Attinà, Emilio

doi:10.1080/17429140701713795

Cited by 11 publications

(10 citation statements)

References 28 publications

(20 reference statements)

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“…The acetyl group, derived from acetic acid, is fundamental to all forms of life and plays a pivotal role in carbohydrate and fat metabolism when bound to coenzyme A. Acetyl coenzyme A (Acetyl-CoA) acts via the tricarboxylic acid (TCA) cycle to facilitate the synthesis of soluble carbohydrates necessary for germination. 46 Longer processing times and higher concentrations of acetic acid inhibited the germination ability of barley seeds, which agrees with a study showing that 10 and 20% acetic acid inhibited maize seed germination. 47 Acetic acid interferes with the integrity of the cell membrane by enhancing electrolyte leakage of seeds that results in decreasing germination ability.…”

Section: Grain Sample Preparation Barley Samples Belonging Tosupporting

confidence: 90%

Ozone Treatment Increases the Release of VOC from Barley, Which Modifies Seed Germination

Dong

Sun

Ren

et al. 2022

J. Agric. Food Chem.

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Ozone is widely used to control pests in grain and has an impact on seed germination. The germination process involves multiple secondary metabolites, such as volatile organic compounds (VOCs), which are altered under ozone treatment. Here, an optimized solid-phase microextraction coupled with gas chromatography–mass spectrometry was implemented to explore changes in VOCs from barley seeds under ozone treatment. The data demonstrated that barley released both a greater variety and quantity of VOCs under oxidative stress. The number of alcohols and hydrocarbons gradually decreased, whereas aldehydes and organic acids markedly increased with increasing ozone treatment time. Acetic acid was identified as a potential ozone stress-specific marker. Furthermore, the dosage-dependent function of acetic acid on the germination of barley was verified, namely, a low dosage of acetic acid increased the germination and vice versa. This study provided new insights into how barley responds to ozone treatment and highlighted the role of acetic acid in seed germination.

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Section: Grain Sample Preparation Barley Samples Belonging Tosupporting

confidence: 90%

Ozone Treatment Increases the Release of VOC from Barley, Which Modifies Seed Germination

Dong

Sun

Ren

et al. 2022

J. Agric. Food Chem.

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“…Seed imbibition triggers highly increase in oxygen consumption which reflects the enhancement of oxidation of produced carbohydrates from the glyoxylate cycle [169]. Alongside to glyoxylate cycle, the OPPP operates where a number of enzymes and intermediates participate the two pathways [170].…”

Section: The Role Of Glyoxylate Cycle In Oilseed Germinationmentioning

confidence: 99%

“…This malate is then exported to cytosol in exchange for succinate and is converted to oxalacetate. PEP-CK catalyzes the conversion of oxaloacetate to phosphoenolpyruvate and this fuels the synthesis of soluble carbohydrates necessary to germination [169].…”

Section: The Role Of Glyoxylate Cycle In Oilseed Germinationmentioning

confidence: 99%

Metabolic Processes During Seed Germination

Ali¹,

Elozeiri²

2017

Advances in Seed Biology

125

102

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Seed germination is crucial stage in plant development and can be considered as a determinant for plant productivity. Physiological and biochemical changes followed by morphological changes during germination are strongly related to seedling survival rate and vegetative growth which consequently affect yield and quality. This study is aimed to focus on proceeding of the most vital metabolic processes namely reserve mobilization, phytohormonal regulation, glyoxylate cycle and respiration process under either stressful or non-stressful conditions that may be led to suggest and conduct the more successful experimental improvements. Seed imbibition triggered the activation of various metabolic processes such as synthesis of hydrolytic enzymes which resulted in hydrolysis of reserve food into simple available form for embryo uptake. Abiotic stresses potentially affect seed germination and seedling establishment through various factors, such as a reduction in water availability, changes in the mobilization of stored reserves, hormonal balance alteration and affecting the structural organization of proteins. Recent strategies for improving seed quality involved classical genetic, molecular biology and invigoration treatments known as priming treatments. H 2 O 2 accumulation and associated oxidative damages together with a decline in antioxidant mechanisms can be regarded as a source of stress that may suppress germination. Seed priming was aimed primarily to control seed hydration by lowering external water potential, or shortening the hydration period.

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“…The carbonate, bicarbonate and calcium ions in the calcareous soils have an inhibitory effect on germination and seedling growth parameters. Higher pH, prolonged elevated carbonate and Ca 2+ ions may also pose stress to seed germination (Muscolo et al, 2007) and seedling development. The high pH of calcareous soil affects the enzymes involved in seed germination which leads to reduced crop establishment (Mansouri et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Differential Response of Groundnut Genotypes for Varying CaCO3 Concentrations

Chitdeshwari

Brindhavani

2021

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Background: Soil calcareousness is the major problem in arid and semi arid regions globally since lime induced chlorosis lead to the deficiency of many essential plant nutrients which in turn resulted in reduced growth and yield loss of many crops. To explore the effects of various concentrations of calcium carbonate (CaCO3) on seed germination and seedling growth of groundnut genotypes and to identify CaCO3 stress tolerant and sensitive groundnut genotypes. Methods: The seed germination and seedling growth of ten groundnut genotypes (CO 6, CO 7, TMV 2, TMV 10, TMV 13, TMV 14, VRI 7, VRI 8, ALR 2 and BSR 2) was investigated with CaCO3 concentrations ranging from 1 to 100 mM L-1 for a period of 14 days. Result: The genotypes VRI 8 and TMV 10 showed higher seed germination and seedling growth even at higher CaCO3 concentration (upto 20 mM L-1) and considered as tolerant genotypes. Whereas TMV 2 and VRI 7 exhibited drastic reduction even at 1 mM L-1 and confirms their susceptibility to CaCO3 stress. Higher concentrations of CaCO3 in the growing medium greatly decreased the germination rate, germination index and vitality index but the impact differs with potentials of genotypes studied.

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Changes in germination and glyoxylate and respiratory enzymes ofPinuspineaseeds under various abiotic stresses

Cited by 11 publications

References 28 publications

Ozone Treatment Increases the Release of VOC from Barley, Which Modifies Seed Germination

Ozone Treatment Increases the Release of VOC from Barley, Which Modifies Seed Germination

Metabolic Processes During Seed Germination

Differential Response of Groundnut Genotypes for Varying CaCO3 Concentrations

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