Impact of Drought Stress during Germination on Antioxidant Capacities and Antioxidant Enzymes Activities of Madura Local Maize (&amp;lt;i&amp;gt;Zea mays&amp;lt;/i&amp;gt;) Seeds

Dani, Agnes Rezkyta Herwang; Siswoyo, Tri Agus

doi:10.4236/as.2019.1011111

Cited by 9 publications

(5 citation statements)

References 32 publications

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“…PEG-6000 was preferred because the ingredients are non-absorbed by plants and are not affected by toxicity [7]. It has been verified to use PEG-6000 as a medium in the identification of local maize for drought stress in the seedling stage from Nepal [8] and Madura, Indonesia [9]. [10] found that increasing the PEG dose to 10% inhibited the percentage germination of maize.…”

Section: Introductionmentioning

confidence: 99%

Preliminary Identification of Local Maize Under Drought Stress By PEG-6000

Mustamu,

Tampubolon,

Alridiwirsah

et al. 2023

BIO Web Conf.

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Adaptation test of local maize plants under drought stress requires early selection at the seedlings stage through Poly Ethylene Glycol (PEG-6000). This study aimed to identify local varieties of maize plants from North Sumatra under drought stress with several doses of PEG-6000. This study was conducted from July to November 2022 using a completely randomized design with two factors and three replications. The sixteen local maize (L) and a hybrid variety (H) of maize as a comparison were used as the first factor. The PEG doses were 0; 100; 200; 300; 400; and 500 g L-1 as the second factor. Data were analyzed using analysis of variance and duncan's multiple range test at P<0.05. The results showed that the LSB5 and LSB4 of local maize from Serdang Bedagai had the greatest number of seeds germinated and water content of seedlings at 40.17 seeds and 74.43%, respectively. The higher PEG dose of 500 g L-1 inhibited the number of seeds germinated and water content of local maize seedlings to 32.27 and 11.45%, respectively. The interaction of local varieties with PEG doses were insignificant effects on both characteristics of local maize.

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Section: Introductionmentioning

confidence: 99%

Preliminary Identification of Local Maize Under Drought Stress By PEG-6000

Mustamu,

Tampubolon,

Alridiwirsah

et al. 2023

BIO Web Conf.

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“…Drought will cause a wide range of plant responses, such as decreasing cell osmotic potential, increasing reactive oxygen species (ROS), and cell membrane damage, inhibiting photosynthesis, and activating a large number of metabolic processes (Guo et al, 2018b;Kamanga et al, 2018;Dani and Siswoyo, 2019). During long-term natural selection and evolution, plants have formed a comprehensive regulatory mechanism for adaptation and resistance to drought stress, involving morphological, physiological, biochemical, and molecular mechanisms (Zhao D. et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Transcriptome Approach Reveals the Response Mechanism of Heimia myrtifolia (Lythraceae, Myrtales) to Drought Stress

Lin¹,

Wang²,

Wang³

et al. 2022

Front. Plant Sci.

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Drought is a major environmental condition that inhibits the development and cultivation of Heimia myrtifolia. The molecular processes of drought resistance in H. myrtifolia remain unknown, which has limited its application. In our study, transcriptome analyzes were compared across three treatment groups (CK, T1, and T2), to investigate the molecular mechanism of drought resistance. Plant leaves wilted and drooped as the duration of drought stress increased. The relative water content of the leaves declined dramatically, and relative electrolyte leakage rose progressively. Using an RNA-Seq approach, a total of 62,015 unigenes with an average length of 1730 bp were found, with 86.61% of them annotated to seven databases, and 14,272 differentially expressed genes (DEGs) were identified in drought stress. GO and KEGG enrichment analyzes of the DEGs revealed significantly enriched KEGG pathways, including photosynthesis, photosynthetic antenna proteins, plant hormone signal transduction, glutathione metabolism, and ascorbate and aldarate metabolism. Abscisic acid signal transduction was the most prevalent in the plant hormone signal transduction pathway, and other plant hormone signal transductions were also involved in the drought stress response. The transcription factors (including MYB, NAC, WRKY, and bHLH) and related differential genes on significantly enriched pathways all played important roles in the drought process, such as photosynthesis-related genes and antioxidant enzyme genes. In conclusion, this study will provide several genetic resources for further investigation of the molecular processes that will be beneficial to H. myrtifolia cultivation and breeding.

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“…Good crop stand establishment is the function of better seed germination and uniform and speedy seedling emergence. However, failure to achieve good crop stand is seriously disrupting agricultural yields under stressful conditions, especially in low water availability ( Batool et al., 2014 ; Rezayian et al., 2018 ; Dani and Siswoyo, 2019 ) in rain-fed environments of semi-arid and arid areas. Soil moisture deficit slows down the pre-germination metabolic activities in seed and hence delays germination and seedling establishment ( Basu et al., 2016 ).…”

Section: Discussionmentioning

confidence: 99%

Enhancing water stress tolerance of bread wheat during seed germination and seedling emergence: caffeine-induced modulation of antioxidative defense mechanisms

Ali,

Perveen,

Saeed

et al. 2024

Front. Plant Sci.

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Better crop stand establishment, a function of rapid and uniform seedling emergence, depends on the activities of germination-related enzymes, which is problematic when there is insufficient soil moisture. Different ways are in practice for counteracting this problem, including seed priming with different chemicals, which are considered helpful in obtaining better crop stand establishment to some extent through improved seed germination and seedling emergence. In this growth room experiment, caffeine was used as a seed priming agent to improve germination under moisture scarcity. Polyethylene glycol-8000 (18%) was added to Hoagland’s nutrient solution to create drought stress (−0.65 MPa). The experiment was arranged in a completely randomized design (CRD), having four replications of each treatment. A newly developed wheat genotype SB-1 was used for the experimentation. Different doses of caffeine, i.e., 4 ppm, 8 ppm, 12 ppm, and 16 ppm, including no soaking and water soaking, were used as seed priming treatments. Water deficit caused oxidative stress and adversely affected the seed germination, seedling vigor, activities of germination enzymes, photosynthetic pigments, and antioxidative defense mechanism in roots and shoots of seedlings. Caffeine seed priming ameliorated the negative effects of water deficit on seed germination and seedling vigor, which was attributed to the reduction in lipid peroxidation and improvement in the activities of germination-related enzymes like glucosidase, amylase, and protease. Conclusively, seed priming with 12 ppm caffeine outperformed the other treatments and hence is recommended for better crop stand establishment under conditions of soil moisture deficit.

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Impact of Drought Stress during Germination on Antioxidant Capacities and Antioxidant Enzymes Activities of Madura Local Maize (<i>Zea mays</i>) Seeds

Cited by 9 publications

References 32 publications

Preliminary Identification of Local Maize Under Drought Stress By PEG-6000

Preliminary Identification of Local Maize Under Drought Stress By PEG-6000

Transcriptome Approach Reveals the Response Mechanism of Heimia myrtifolia (Lythraceae, Myrtales) to Drought Stress

Enhancing water stress tolerance of bread wheat during seed germination and seedling emergence: caffeine-induced modulation of antioxidative defense mechanisms

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