Plant Anatomy and Physiology

Lopez, Francis B.; Barclay, Gregor F.

doi:10.1016/b978-0-12-802104-0.00004-4

Cited by 37 publications

(25 citation statements)

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“…Optimum growth conditions of 16/8 h of light and dark conditions at 25-30 • C were maintained according to the recommendations of Pruthvi et al (2014). The field capacity of potting media was measured by determining the difference between the saturated wet and completely dried weight of potting media as explained by Lopez and Barclay (2017). After germination, plants were watered regularly for 2 weeks according to field capacity.…”

Section: Plant Materials and Treatmentsmentioning

confidence: 99%

Expression Characterization of Flavonoid Biosynthetic Pathway Genes and Transcription Factors in Peanut Under Water Deficit Conditions

et al. 2021

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Drought is one of the hostile environmental stresses that limit the yield production of crop plants by modulating their growth and development. Peanut (Arachis hypogaea) has a wide range of adaptations to arid and semi-arid climates, but its yield is prone to loss due to drought. Other than beneficial fatty acids and micronutrients, peanut harbors various bioactive compounds including flavonoids that hold a prominent position as antioxidants in plants and protect them from oxidative stress. In this study, understanding of the biosynthesis of flavonoids in peanut under water deficit conditions was developed through expression analysis and correlational analysis and determining the accumulation pattern of phenols, flavonols, and anthocyanins. Six peanut varieties (BARD479, BARI2011, BARI2000, GOLDEN, PG1102, and PG1265) having variable responses against drought stress have been selected. Higher water retention and flavonoid accumulation have been observed in BARI2011 but downregulation has been observed in the expression of genes and transcription factors (TFs) which indicated the maintenance of normal homeostasis. ANOVA revealed that the expression of flavonoid genes and TFs is highly dependent upon the genotype of peanut in a spatiotemporal manner. Correlation analysis between expression of flavonoid biosynthetic genes and TFs indicated the role of AhMYB111 and AhMYB7 as an inhibitor for AhF3H and AhFLS, respectively, and AhMYB7, AhTTG1, and AhCSU2 as a positive regulator for the expression of Ah4CL, AhCHS, and AhF3H, respectively. However, AhbHLH and AhGL3 revealed nil-to-little relation with the expression of flavonoid biosynthetic pathway genes. Correlational analysis between the expression of TFs related to the biosynthesis of flavonoids and the accumulation of phenolics, flavonols, and anthocyanins indicated coregulation of flavonoid synthesis by TFs under water deficit conditions in peanut. This study would provide insight into the role of flavonoid biosynthetic pathway in drought response in peanut and would aid to develop drought-tolerant varieties of peanut.

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Section: Plant Materials and Treatmentsmentioning

confidence: 99%

Expression Characterization of Flavonoid Biosynthetic Pathway Genes and Transcription Factors in Peanut Under Water Deficit Conditions

et al. 2021

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“…In monocotyledonous plants, they are aggregated in clusters forming "caps" around vascular bundles. These cells provide mechanical support, and due to the thick walls, they do not possess protoplast so they are not capable of mitotic division [39]. Therefore, their number is final.…”

Section: Introductionmentioning

confidence: 99%

Physiological Response of Miscanthus x giganteus to Plant Growth Regulators in Nutritionally Poor Soil

Malinská

Pidlisnyuk

Nebeská

et al. 2020

Plants

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Miscanthus x giganteus (Mxg) is a promising second-generation biofuel crop with high production of energetic biomass. Our aim was to determine the level of plant stress of Mxg grown in poor quality soils using non-invasive physiological parameters and to test whether the stress could be reduced by application of plant growth regulators (PGRs). Plant fitness was quantified by measuring of leaf fluorescence using 24 indexes to select the most suitable fluorescence indicators for quantification of this type of abiotic stress. Simultaneously, visible stress signs were observed on stems and leaves and differences in variants were revealed also by microscopy of leaf sections. Leaf fluorescence analysis, visual observation and changes of leaf anatomy revealed significant stress in all studied subjects compared to those cultivated in good quality soil. Besides commonly used Fv/Fm (potential photosynthetic efficiency) and P.I. (performance index), which showed very low sensitivity, we suggest other fluorescence parameters (like dissipation, DIo/RC) for revealing finer differences. We can conclude that measurement of leaf fluorescence is a suitable method for revealing stress affecting Mxg in poor soils. However, none of investigated parameters proved significant positive effect of PGRs on stress reduction. Therefore, direct improvement of soil quality by fertilization should be considered for stress reduction and improving the biomass quality in this type of soils.

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“…The MEC and the polycrystalline silicon solar cell jointly work in a way similar to the Z-scheme in the natural photosynthesis process, as described in the previous studies. 37,42,43 P-doped and Ndoped silicon semiconductors were joined together to form a P-N junction, where the N-doped silicon material shifted the Fermi level nearer to the conduction band and the P-doped silicon material shifted the Fermi level closer to the valence band. 44,45 In this system, sunlight is absorbed by electron-hole pairs and excites electrons to move toward the conduction band, leaving behind holes that move in similar manners but in opposite directions toward the valance band of the polycrystalline silicon.…”

Section: Polycrystalline Solar Cell -Mec Mechanismmentioning

confidence: 99%

Evaluating the use of unassimilated bio‐anode with different exposed surface areas for bioenergy production using solar‐powered microbial electrolysis cell

et al. 2021

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The microbial electrolysis cell (MEC) is an emerging technology for bioenergy production using organic wastewater. Normally, a preassimilated bio-anode is utilized by the MEC to break down the organic content, but the formation and assimilation of microbial community at the anode surface is a time-consuming process. This study utilized a novel unassimilated Ni-foam anode for the first time in solar-powered MEC for bioenergy production. Synthetic dairy manure wastewater (SDMW) was used both as substrate and an inoculum in the solarpowered tubular MEC. The impacts of the exposed surface area of the bio-anode on bioenergy production were evaluated by utilizing two different separation techniques (rate-limited bio-anode -MEC and fully exposed bio-anode -MEC). The former technique achieves a maximum methane production rate of 30.35 ± 0.03 mL/L, 14.2% more than that achieved by the later mentioned technique (26.4 ± 0.05 mL/L). Hydrogen production was approximately 800 ± 5 mm 3 in both experimentations. The maximum generated current in the rate limited bioanode -MEC was 35.5 mA. Scanning electron microscope images confirmed the formation of rod-shaped along with round-shaped microbial communities on the anode surface, and, interestingly, round-shaped bacteria were also grown on the cathode surface. The bioenergy (H 2 and CH 4 ) produced using SDMW within first 13 days of operation, along with the formation of a microbial community, was a significant success in this area and has opened up many research opportunities for producing instant bioenergy from organic waste.

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Plant Anatomy and Physiology

Cited by 37 publications

References 1 publication

Expression Characterization of Flavonoid Biosynthetic Pathway Genes and Transcription Factors in Peanut Under Water Deficit Conditions

Expression Characterization of Flavonoid Biosynthetic Pathway Genes and Transcription Factors in Peanut Under Water Deficit Conditions

Physiological Response of Miscanthus x giganteus to Plant Growth Regulators in Nutritionally Poor Soil

Evaluating the use of unassimilated bio‐anode with different exposed surface areas for bioenergy production using solar‐powered microbial electrolysis cell

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