Examination of Correlations Between Several Biochemical Components and Powdery Mildew Resistance of Flax Cultivars

Aly, Aly A.; Mansour, Mohamed; Mohamed, Heba I.; Abd-Elsalam, Kamel A.

doi:10.5423/ppj.2012.28.2.149

Cited by 47 publications

(13 citation statements)

References 15 publications

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“…It has been reported that seed quality was positively affected by Zn [ 18 ] or PBZ application [ 14 ]. The positive effect of Zn and PBZ on seed carbohydrate content would be related to the increase in starch synthase and CA activity, as well as improved Rubisco activity that improves seed development [ 51 , 52 , 53 ]. Additionally, zinc application is recognized to preserve enzyme activity through binding the sulphydryl group, and hence defending disulfide formation that leads to a rise in protein biosynthesis and protein content in the seed [ 34 , 35 , 48 ].…”

Section: Discussionmentioning

confidence: 99%

Zinc and Paclobutrazol Mediated Regulation of Growth, Upregulating Antioxidant Aptitude and Plant Productivity of Pea Plants under Salinity

Sofy

Elhindi

Farouk

et al. 2020

Plants

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Soil salinity is the main obstacle to worldwide sustainable productivity and food security. Zinc sulfate (Zn) and paclobutrazol (PBZ) as a cost-effective agent, has multiple biochemical functions in plant productivity. Meanwhile, their synergistic effects on inducing salt tolerance are indecisive and not often reported. A pot experiment was done for evaluating the defensive function of Zn (100 mg/L) or PBZ (200 mg/L) on salt (0, 50, 100 mM NaCl) affected pea plant growth, photosynthetic pigment, ions, antioxidant capacity, and yield. Salinity stress significantly reduces all growth and yield attributes of pea plants relative to nonsalinized treatment. This reduction was accompanied by a decline in chlorophyll, nitrogen, phosphorus, and potassium (K+), the ratio between K+ and sodium (Na+), as well as reduced glutathione (GSH) and glutathione reductase (GR). Alternatively, salinity increased Na+, carotenoid (CAR), proline (PRO), ascorbic acid (AsA), superoxide dismutase (SOD), catalase (CAT), and ascorbate peroxidase (APX) over nonsalinized treatment. Foliar spraying with Zn and PBZ under normal condition increased plant growth, nitrogen, phosphorus, potassium, K+/Na+ ratio, CAR, PRO, AsA, GSH, APX, GR, and yield and its quality, meanwhile decreased Na+ over nonsprayed plants. Application of Zn and PBZ counteracted the harmful effects of salinity on pea plants, by upregulating the antioxidant system, ion homeostasis, and improving chlorophyll biosynthesis that induced plant growth and yield components. In conclusion, Zn plus PBZ application at 30 and 45 days from sowing offset the injuries of salinity on pea plant growth and yield by upregulating the antioxidant capacity and increasing photosynthetic pigments.

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Section: Discussionmentioning

confidence: 99%

Zinc and Paclobutrazol Mediated Regulation of Growth, Upregulating Antioxidant Aptitude and Plant Productivity of Pea Plants under Salinity

Sofy

Elhindi

Farouk

et al. 2020

Plants

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“…The MDA produced during lipid peroxidation is an indicator of cellular damage at the cell membrane by pathogenic infection (Dallagnol et al 2011;Aly et al 2012). The MDA content was statistically similar in noninoculated plants of both susceptible and resistant genotypes, while it was found to be increased in CLCuBuV-inoculated plants of all tested genotypes ( Figure 1I).…”

Section: Malondialdehyde Contentmentioning

confidence: 90%

Biochemical alterations in leaves of resistant and susceptible cotton genotypes infected systemically by cotton leaf curl Burewala virus

Siddique

Akhtar

Hameed

et al. 2014

Journal of Plant Interactions

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Leaf curl disease caused by Cotton Leaf Curl Burewala virus (CLCuBuV) has been recognized as serious threat to cotton in Indian subcontinent. However, information about cotton-CLCuBuV interaction is still limited. In this study, the level of phenolic compounds, total soluble proteins, and malondialdehyde (MDA) and the activities of phenylalanine ammonia-lyase (PAL), peroxidase (POX), catalase (CAT), proteases, superoxide dismutase (SOD), and polyphenol oxidase (PPO) were studied in leaves of two susceptible (CIM-496 & NIAB-111) and two resistant (Ravi and Co Tiep Khac) cotton genotypes. Disease symptoms were mild in the resistant genotypes but were severe in highly susceptible genotypes. The results showed that phenolic compounds, proteins, PAL, POX, CAT, proteases, SOD, PPO, and MDA play an active role in disease resistance against CLCuBuV. The amount of total phenols, proteases, MDA, and PPO was significantly higher in leaves of CLCuBuV-inoculated plants of both resistant genotypes as in non-inoculated plants, and decreased in CLCuBuV-inoculated plants of both susceptible genotypes over their healthy plants. POX, protein content, SOD, and PAL activities showed lower values in resistant genotypes, while they decreased significantly in susceptible genotypes as compared to the noninoculated plants except PAL, which showed non-significant decrease. CAT was found to be increased in both susceptible and resistant genotypes with maximum percent increase in resistant genotype Ravi, as compared to non-inoculated plants. The results showed significantly higher concentrations of total phenols and higher activity of protease, MDA, SOD, and PPO in resistant genotype Ravi after infection with CLCuBuV, suggesting that there is a correlation between constitutive induced levels of these enzymes and plant resistance that could be considered as biochemical markers for studying plant-virus compatible and incompatible interactions.

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“…This activity is owing to the capability of these materials to decrease oxidative stress by scavenging or neutralizing of reactive species by hydrogen donation, before they attack biological components of cells (Kesba and El-Beltagi, 2012). In this meaning, there is excessive concern in discovery of natural antioxidants from plant materials, and many extracts and isolated compounds have been considered for their antioxidant activity, via different methods (El-Beltagi, 2011;Aly et al, 2012;El-Beltagi et al, 2019). Many researches showed that certain herbs and medicinal plants have beneficial effects on liver disorders, renal diseases, anaemia, neurologic and mental disorders (Saki et al, 2014;Wu et al, 2014;Lone et al, 2015;Mansouri et al, 2015).…”

Section: Introduction Introduction Introduction Introductionmentioning

confidence: 99%

Chemical compositions and biological activities of the essential oils from gamma irradiated celery (Apium graveolens L.) seeds

El-Beltagi

Dhawi

Aly

et al. 2020

Not Bot Horti Agrobo

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Celery seed oils can help in detoxification processes of the body as it facilitates the elimination of toxins and other harmful substances out of the body. This study aimed to assess biological activity of essential oils extracted from un-irradiated and irradiated celery seeds by gamma rays. Celery seeds were irradiated with different dose levels of gamma radiation; control, 2.5, 5.0, and 10.0 kGy. The highest increase of essential oil extracted was registered with a dosage level of 10.0 kGy (2.42%). The GC-MS analysis showed that, there were new compounds detected in the irradiated samples and others compounds were increased or decreased. The FTIR spectra showed alterations in functional groups of essential oils extracted from celery seeds upon gamma-irradiation. Total phenols, total flavonoids and antioxidant activity increased proportional to the increase in the irradiation dose level and the maximum increase obtained in the irradiation dose level 10.0 kGy. This may be an evidence on the biological value, there were anticancer activity against 2 cell lines, breast cancer cell line (MCF-7) and lung cancer cell line (A549). The best IC50 in A549 was 145 µg/ml in sample with irradiation dose level 5.0 kGy while the best IC50 in MCF-7 was 124 µg/ml in irradiated sample with dose 5.0 kGy. Also, the highest inhibition zone of S. aureus, B. subtilis and K. pneumoniae were obtained with the oil extracted from seeds irradiated with 5 kGy dose level, where E. coli and C. albicans were more pronounced for the oil gotten from the seeds irradiated with 10.0 kGy. The irradiation process for celery seeds may be promising for biological value of celery oils.

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Examination of Correlations Between Several Biochemical Components and Powdery Mildew Resistance of Flax Cultivars

Cited by 47 publications

References 15 publications

Zinc and Paclobutrazol Mediated Regulation of Growth, Upregulating Antioxidant Aptitude and Plant Productivity of Pea Plants under Salinity

Zinc and Paclobutrazol Mediated Regulation of Growth, Upregulating Antioxidant Aptitude and Plant Productivity of Pea Plants under Salinity

Biochemical alterations in leaves of resistant and susceptible cotton genotypes infected systemically by cotton leaf curl Burewala virus

Chemical compositions and biological activities of the essential oils from gamma irradiated celery (Apium graveolens L.) seeds

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