Salt Stress Induced Changes in Growth and Enzyme Activities in Germinating Phaseolus Mungo Seeds

Dash, Monika; Panda, Sanjib Kumar

doi:10.1023/a:1013750905746

Cited by 107 publications

(38 citation statements)

References 12 publications

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“…However, the effect mechanism of salinity has not been completely clarified thus far (AlKaraki 2001, Ghoulam andFores 2001). It is well known that salinity prevents seed germination (Chartzoulakis and Loupassaki 1997, Hosseini et al 2002, Demir et al 2003 and seedling growth (Dash and Panda 2001, El-Mashad and Kamel 2001, Ashraf et al 2002. The seedling growth and germination of A. cepa seeds, as expected, were inhibited under saline conditions (Table 1).…”

Section: Physiological and Cytogenetical Effects Of Exogenous Gble Insupporting

confidence: 68%

Role of Ginkgo biloba L. Leaf Extract on Some Physiological and Cytogenetical Parameters in Allium cepa L. Seeds Exposed to Salt Stress

2016

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SummaryIn this project, the effects of Ginkgo biloba L. leaf extract (GbLE) on the seed germination, seedling growth (radicle length, radicle number and fresh weight), mitotic activity and chromosomal aberrations of Allium cepa L. germinated under both normal conditions and salt stress were studied. The radicle length of seeds germinated in the medium with GbLE alone increased in comparison with ones of the control seeds germinated in distilled water medium while their fresh weight reduced according to the control. However, the germination percentage and radicle number of the mentioned seeds were statistically the same as ones of the control seeds. Furthermore, the mitotic index and the frequency of chromosomal aberrations in root tip meristems of A. cepa seeds germinated in the medium with GbLE alone demonstrated a significant increase compared to the control seeds germinated in distilled water medium. On the other hand, salt stress considerably inhibited the seed germination and seedling growth of A. cepa. In addition, it markedly decreased the mitotic index in root tip meristems of the seeds and increased the number of chromosomal aberrations. Whereas, the inhibitive effect of salt on the seed germination, seedling growth and mitotic activity was dramatically alleviated in varying degrees by GbLE application. But, the detrimental effects of salt on the chromosomal aberrations greatly increased with this treatment.

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Section: Physiological and Cytogenetical Effects Of Exogenous Gble Insupporting

confidence: 68%

Role of Ginkgo biloba L. Leaf Extract on Some Physiological and Cytogenetical Parameters in Allium cepa L. Seeds Exposed to Salt Stress

2016

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“…It is well-known that salinity often arrest the progression of cell division, hindering seed germination (Kabar 1987;Dash and Panda 2001); DNA, RNA and protein synthesis (Anuradha and Rao 2001) and mitosis.…”

Section: Discussionmentioning

confidence: 99%

Cytogenetic response of 24-epibrassinolide on the root meristem cells of barley seeds under salinity

Tabur

Demir

2009

Plant Growth Regul

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Cytogenetic response of 24-epibrassinolide (EBR) and different NaCl concentrations (0.30, 0.35 and 0.40 M, molar) on root meristem cells of barley were analysed. Plants grown on media containing 0.30, 0.35 and 0.40 M NaCl showed a significant decrease of mitotic index and higher number of chromosomal abnormalities as compared to those of control conditions. Also, the mitotic index approximately 50% decreased in EBR-treated samples and chromosomal abnormalities almost tipled those of control. EBR pretreatment in higher concentrations of salt (0.40 M NaCl) caused total inhibition of mitotic activity in roottip cells. However, comparison of all concentrations of salt and control revealed to have a successful performance in ameliorating of the detrimental effects of salinity on chromosomal abnormalities.

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“…According to Dash and Panda (2001), salt and water stress can have an influence on the isoenzymatic system during the germination process, increasing or reducing GTDH enzyme activity. Within 30 h at the higher osmotic potential, we can observe that the effect was more drastic for sesame seed at the time that it increases the respiratory activity and high production of intermediate Krebs cycle.…”

Section: Discussionmentioning

confidence: 99%

Research Article Physiological and enzymatic alterations in sesame seeds submitted to different osmotic potentials.

et al. 2017

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ABSTRACT. With the imminence of global climate changes that affect the temperature and the rainfall uniformity, it is growing the concern about the adaptation of crops to the water deficit. Thus, the objective of this study was to evaluate alterations in physiological and enzymatic mechanisms during the germination process of sesame seeds under different water availability. To simulate the water restriction we used PEG6000, a high molecular weight molecule that does not penetrate the seed structure but allows different osmotic potentials. The treatments were -0.1, -0.2, and -0.3 MPa, and the control. Germination, first-count germination, germination velocity index, and length and dry mass of the hypocotyl and radicle were performed. The seeds were weighed before and after treatments every 3 h. After each weighing, 100 seeds were taken for analysis of the enzymes alcohol dehydrogenase (ADH), malate dehydrogenase, esterase, catalase (CAT), superoxide dismutase (SOD), isocitrate lyase (ICL), and glutamate dehydrogenase (GTDH). The statistical design was completely randomized with five replications. PEG6000 prolonged ADH activity during the beginning of germination, maintaining the anaerobic metabolism for longer. Subsequently, their activity was reduced, as well as ICL, favoring the deterioration of the seeds that take the time to germinate. Behavior was evidenced by the appearance of SOD, CAT, and GTDH isoforms after 24 h of imbibition when water restriction was imposed. Therefore, the PEG600 is efficient in simulating water deficit conditions in future scenarios of climate change, offering impotent information regarding the germination behavior of the plants under these conditions.

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Salt Stress Induced Changes in Growth and Enzyme Activities in Germinating Phaseolus Mungo Seeds

Cited by 107 publications

References 12 publications

Role of <i>Ginkgo biloba</i> L. Leaf Extract on Some Physiological and Cytogenetical Parameters in <i>Allium cepa</i> L. Seeds Exposed to Salt Stress

Role of <i>Ginkgo biloba</i> L. Leaf Extract on Some Physiological and Cytogenetical Parameters in <i>Allium cepa</i> L. Seeds Exposed to Salt Stress

Cytogenetic response of 24-epibrassinolide on the root meristem cells of barley seeds under salinity

Research Article Physiological and enzymatic alterations in sesame seeds submitted to different osmotic potentials.

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