germination Articles
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The crucial role of the pls1 tetraspanin during ascospore germination in podospora anserina provides an example of the convergent evolution of morphogenetic processes in fungal plant pathogens and saprobes{triangledown}
Pls1 tetraspanins were shown for some pathogenic fungi to be essential for appressorium-mediated penetration into their host plants. We show here that Podospora anserina, a saprobic fungus lacking appressorium, contains PaPls1, a gene orthologous to known PLS1 genes. Inactivation of PaPls1 demonstrates that this gene is specifically required for the germination of ascospores in P. ...
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Ecotoxicological responses of three ornamental herb species to cadmium
Cadmium is one of the most toxic elements. The ideal vegetal cover should be ensured by the selection of appropriate plant species for successful phytoremediation. In the present study, the ecotoxicological effects of Cd on the following 3 ornamental herbs were investigated: Italian ryegrass (Lolium multiflorum Lam.), white clover (Trifolium repens L.), and alfalfa (Medicago sativa L.). Based ...
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Plant regeneration via direct somatic embryogenesis in Panax japonicus
Panax japonicus is one of the important medicinal plants. Here, we established the protocol for plant regeneration of P. japonicus via direct somatic embryogenesis. Somatic embryos were directly obtained from the segments of zygotic embryos on MS medium with 4.4 μM 2,4-D. Thereafter, somatic embryos were produced by repetitive secondary somatic embryogenesis. The secondary somatic embryo ...
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Gibberellic Acid 90 MHz - Case Study
Gibberellic acid Gibberellic acid is a plant hormone and the most used substance from the group of Gibberellins. In the industry it is used mainly to stimulate rapid stem and root growth and to speed up the germination. Figure 1 shows the 1H NMR spectrum of a 250 mM Gibberellic acid sample in MeOH-d4 measured in a single scan taking 10 seconds to ...
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Salinity effects on seed germination and plant growth of guar
The potential of guar [Cyamopsis tetragonoloba (L.) Taub.] as a feasible crop for saline soils was tested in this study by evaluating seed germination of 42 accessions of guar in sodium chloride (NaCl) solution. The seeds were germinated in 200 mM NaCl or double-distilled water (control). There were significant differences in salt tolerance among the accessions tested. Percentages of seeds ...
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Salinity effects on seed germination and vegetative growth of greens-type poa annua relative to other cool-season turfgrass species
Seed germination and vegetative growth studies were conducted to determine relative salinity tolerance of greens-type Poa annua L. compared with other cool-season turfgrass species. Effects of increasing salinity stress on final germination percentage (FGP), germination rate (GR), clipping yield dry weight (CYD), verdure dry weight (VD), root dry weight (RD), and the longest root length (LRL) ...
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Effect of aluminum and chromium on the growth and germination of mesquite (Prosopis juliflora swartz.) DC.
Abstract: Prosopis seeds were grown under controlled environment in solution of aluminum and chromium at different concentration alone as well as combined together. The effect of these metals was studied on seed germination, root length, shoot length, seedling length and dry biomass. Aluminum and chromium alone, and combined together showed no effects on germination and dry biomass. Chromium ...
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Identification of soybean accessions with high germinability in high-temperature environments
Soybean [Glycine max (L.) Merr.] seed produced in high-temperature, high-humidity production environments is prone to have substandard germination. Hardseededness, wrinkled seed coats, and infection by Phomopsis longicolla Hobbs are all known to affect soybean seed germinability. Ancestors of modern U.S. soybean cultivars may lack the necessary variability to impart high germinability to new ...
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Too dry and too cold for mould germination in New Zealand dwellings?
The indoor climate was investigated in 25 dwellings during the winter of 2005, in the Hutt Valley region (Greater Wellington, New Zealand). A temperature/relative humidity sensor and a fungal detector were attached to the indoor side of the external wall in the living room and in the asthmatic child's bedroom for an average period of 42 days. Germinated spores in the fungal detector were counted ...
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Case study - Former Steel Works, Ebbw Vale
Chosen as home for the 2010 National Eisteddfod of Wales, over 200,000m2 of hydroseeding on to sloped and flat areas was successfully completed using a broad range of project specific seed mixes that included both wildflower and grass mixtures. Due to the nature of the site, it was too impractical to conventionally seed the former industrial landmark, making hydroseeding the only solution. The ...
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Disposal of seaweed wakame (Undaria pinnatifida) in composting process by marine bacterium Halomonas sp. AW4
A novel marine bacterium, identified as Halomonas sp. AW4 by partial 16S rDNA analysis, was isolated from the seaweeds in Awaji Island, Japan. Strain AW4 grew well even in the wide NaCl concentration ranges of 0?3 mol/L, where it showed an optimal growth in the presence of 0.5 mol/L NaCl. The organic components were reduced to 73.6% of initial dry weight after 168 h of composting by inoculation ...
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Effect of aluminum and chromium on the germination and growth of two Vigna species
Abstract: The study deals with the effect of metal toxicity (aluminum, chromium and combination of both the metals) on seed germination, root length, shoot length, seedling length and dry biomass of Vigna radiata and V. sinensis. Chromium adversely affected the seedling by significantly reducing the growth whereas aluminum did not show such effect in both the species. Percentage of germination ...
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Toxic effects of wastewater from various phases of monosodium glutamate production on seed germination and root elongation of crops
To make a comprehensive assessment on monosodium glutamate (MSG) wastewater pollution, a pollution exposure experiment was carried out on the seed germination and root elongation of wheat, Chinese cabbage and tomato by using the wastewater discharged from different processing phases of MSG production. The results showed that there were significantly positive linear relationships between the ...
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Methods to determine dormancy and preharvest sprouting resistance in Barley
Preharvest sprouting (PHS), defined as germination of seeds on plants before harvest, is an ever-present problem and concern for barley (Hordeum vulgare L.) growers, processors, and researchers worldwide. A major factor leading to PHS is a lack of seed dormancy, the failure of viable seeds to germinate under favorable conditions. The objectives of this research were to identify a simple, quick, ...
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Germination and early plant development of ten plant species exposed to TiO2 and CeO2 nanoparticles
Ten agronomic plant species were exposed to different concentrations of nano titanium dioxide (nTiO2) or nano cerium oxide (nCeO2) (0, 250 µg/mL, 500 µg/mL and 1000 µg/mL) to examine potential effects on germination and early seedling development. We modified a standard test protocol developed for soluble chemicals (OPPTS 850.4200) to determine if such an approach might be useful for screening ...
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Optimalt - EU-Project - Case Study
The malting process is the first stage of beer production. It transforms the barley into malt through a germination process that needs to be well controlled. The quality of the barley is key to finally obtaining a premium end product, thus the malting quality (MQ) of barley needs to be assessed by a reliable technique. However, parameters currently used for assessing malting quality of barley are ...
By Gasera Ltd
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Phytotoxic effect of aluminum and chromium on the germination and early growth of wheat (Triticum aestivum) varieties Anmol and Kiran
A greenhouse experiment was conducted to determine the phytotoxic effect of aluminum and chromium on the germination and early growth of two wheat (Triticum aestivum) varieties Anmol and Kiran. Seed were treated with 40, 80, 120 and 160 ppm of aluminum and chromium solution individually and in combined form. Observations were made on seed germination, root, shoot and seedling length, and dry ...
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Green tea catechins applied to susceptible hosts inhibit parasitic plant attachment success
Parasitic plants utilize cell wall degrading enzymes (CWDEs) to penetrate their host plant and attach to host vasculature. Inhibition of CWDEs may confer resistance on susceptible hosts, offering a strategy for parasitic plant control. Here, exogenous application of green tea catechins, which inhibit pectin methylesterase (a CWDE), was used to delay parasitic plant attachment. Texas bluebonnet ...
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Germination and seedling growth of corn (Zea mays l.) under varying levels of copper and zinc
The heavy metal tolerance in corn (Zea mays L.) var. ‘Neelum’ was assessed at germination and seedling growth after having subjected it to different concentrations of CuSO4 and ZnSO4. Germination was not affected by any of the metal tested, whereas initial growth was strongly inhibited by increasing concentrations of ZnSO4. Seedlings developed toxicity symptoms in the presence of both metals but ...
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Nano silicon dioxide mitigates the adverse effects of salt stress on Cucurbita pepo L
Nanotechnology, an emerging science, has advanced research in almost all fields of technology. The aim of the present study was to evaluate the role of nano silicon dioxide (nSiO) in plant resistance to salt stress through improving the antioxidant system of squash (Cucurbita pepo L. cv. White Bush Marrow). We found that seeds treated with NaCl showed reduced germination percentage, vigor ...
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