Root and soil colonization

The study "Characterization of arbuscular mycorrhizal fungal communities associated with vineyards in northwestern Iran" was aimed to investigate AMF spore density, species composition, mycorrhizal colonization patterns, and correlation of these indices with soil physicochemical parameters at four vineyards located in one of the most important grape-producing regions of Iran (West Azerbaijan province).

9p lyhuyenthu 31-01-2023 5 2   Download

Banana wilt disease, caused by Fusarium oxysporum f. sp. cubense Tropical Race 4 (Foc TR4), is one of the most devastating diseases in banana (Musa spp.). Foc is a soil borne pathogen that causes rot of the roots or wilt of leaves by colonizing the xylem vessels.

16p visilicon2711 20-08-2021 8 1   Download

The growth of plant is reaction between interplay of roots and shoots with the environment. Planting media i.e. soil supply support to plants and growth to microorganisms. The interactions between roots and microbes is beneficial and if enhanced then results in increased plant growth and yield. Plant growth promoting rhizobacteria are certain aggressive root colonizing bacteria that benefits plants.

5p trinhthamhodang11 27-04-2021 23 1   Download

Mycorrhizal fungi occur in most of the soils and colonize roots of many plant species. A greenhouse experiment was carried out to study the efficiency of Arbuscular Mycorrhizal fungi indigenous to Arunachal Pradesh in uptaking plant nutrients for the Piper mullesua plantlets at different soil condition i.e., sterilized soil, unsterilized soil and field condition. As the sterilized soil condition is difficult to understand the performance of AM fungi, field experiments are necessary to understand the effect of mycorrhizal fungi on yield of crops in field condition.

13p caygaocaolon6 30-07-2020 9 2   Download

Arbuscular mycorrhizal fungi (AMF) form obligate symbiotic association with the roots of crop plants and play a critical role in enhancing plant growth under semi-arid climatic conditions. Present investigation has been taken up to characterize the isolated AM fungal species from rhizosphere soils of different host crops grown across various Zones of Andhra Pradesh. A total of twelve AM fungal spores were characterized based on their morphological traits.

9p angicungduoc6 20-07-2020 14 1   Download

Plant growth promoting rhizobacteria (PGPR) are a wide range of root colonizing bacteria with the capacity to enhance plant growth by increasing seed emergence, producing lytic enzyme and bacteriocin. Soil or seed application of PGPR have been used to enhance growth of the several crops as well as to suppress the growth of the plant pathogens. The pot experiment was conducted during winter season to find out the effect of three plant growth promoting rhizobacteria (PGPR) either singly or in combination on vegetative growth parameters of coriander seedling.

9p kethamoi6 29-06-2020 18 1   Download

The rhizosphere of Momordica charantia (Bitter gourd) has a significant effect on the aerobic bacteria, anaerobic bacteria and actinomycetes population compared to the respective barren soil. Rhizospheric soils (0–25 cm depth) along the roots were processed at surface (0-1 cm) and also at 5 cm interval in the spring season. Bacterial population significantly differed in each transect with a maximum at 1–5 cm depth, and decreased with the increase in the root length. Rhizosheric region (20–25 cm) exhibited maximum R/S ratio (rhizospheric effect).

10p nguaconbaynhay6 24-06-2020 8 0   Download

Plant growth promoting rhizobacteria (PGPR) are beneficial bacteria that colonize plant roots and enhance plant growth by a wide variety of mechanisms. The isolate of PGPR designated as Pseudomonas aeruginosa strain (2CpS1) was successfully isolated from the soil and rhizosphere of roots of plants growing in fields, Almora district.

6p nguathienthan5 04-06-2020 13 1   Download

Anthurium andraeanum, an important ornamental flower, has to go through a growth-delaying period after transfer from tissue culture to soil, which requires time and extra costs.

10p viharuno2711 24-04-2020 4 0   Download

Crop improvement is significantly enhanced by the application of beneficial microbes. Progress in understanding the biology of mycorrhizal fungi is hampered by the limited number of species that can be successfully propagated and studied in vitro using resting spores. VAM spores were isolated from the rhizosphere soil and were cultivated in-vitro using Cooke Rose Bengal medium. In pot culture experiment, the plants treated with VAM isolates exhibited enhancement in growth than the control ones. After using mycorrhizal inoculum, the root colonization of crop plants was greatly affected.

11p trinhthamhodang1212 06-04-2020 29 1   Download

Endophytes are microorganisms mostly bacteria and fungi that lives partially or completely its life cycle inside living plant tissue without causing adverse negative symptoms. Endophytes play a major role in structuring shaping processes of plant such as colonization, competition, coexistence and soil nutrient dynamics. Some endophytes promote growth of their host plants by enhancing the host‟s ability to take up nitrogen and phosphorus.

9p cothumenhmong3 22-02-2020 18 0   Download

Arbuscular Mycorrhizal Fungi (AMF) from the small phylum Glomeromycota forms symbiotic association with the roots of higher plants. The AMF appears to benefit by improving the uptake of phosphate and other nutrients from soil and also increases the disease tolerance to the host plant. Mycorrhizal plants produce certain substances that have been indicated as copartners in resistance to the attack of root pathogens.

6p chauchaungayxua3 07-02-2020 14 0   Download

Phosphorus and zinc are two essential nutrients which are required for normal plant growth. These nutrients are mutually antagonistic in certain circumstances which can cause yield reductions in many crops due to either P or Zn deficiencies. Deficiencies typically happen when a nutrient is available in small amounts. In this phenomenon, the nutrient is present in marginal to normal levels but the antagonizing nutrient is available in such a large amount that it induces the deficiency of the other.

6p quenchua2 15-12-2019 16 0   Download

An experiment was designed to assess the response of Sulphur to different Chickpea cultivars at Agriculture farm of Mahatma Gandhi Chitrakoot Gramodaya Vishwavidyalaya, Chitrakoot, Satna (M.P.). Three varieties (DCP 92-03, JG-16, JG-11) Seed Treatment in Chickpea with Rhizobium and three Sulphur levels (10, 20, 30 and 40 kg S /ha) along with all possible interactions were used. Experimental design fallowing split plot design in three replications was employed data was collected on yield parameters.

9p kethamoi2 15-12-2019 20 0   Download

Use of biocontrol agent to increase the growth of crop has been an alternative source to meet the demand of growing population. Plant growth promoting rhizobacteria (PGPR) are the soil bacteria inhabiting around/on the root surface and are directly or indirectly involved in promoting plant growth and development via production and secretion of various regulatory chemicals in the locality of rhizosphere. These bacteria competitively colonize the roots of plants and can act as biofertilizers and/or antagonist (biopesticides) or simultaneously both.

7p cothumenhmong1 08-12-2019 17 0   Download

Arbuscular mycorrhizal status of Pippali a medicinal plant species in the Jorhat district of Assam, India were surveyed during 2018. Percent colonization, spore density and diversity of arbuscular mycorrhizal fungi associated with the rhizospheric soil and roots of pippali growing wild as well as under cultivated conditions were investigated. It was found that 100% of the surveyed sample was of mycorrhizal infestation. The spore colonization per cent of AMF ranged from 30.80 to 66.50% spores per 100 g of soil. The maximum spore population (185.

9p nguaconbaynhay1 04-12-2019 33 0   Download

This study aimed to establish the colonization behavior and proliferation potential of three endophytes and one pathogen Ganoderma boninense (Gb) introduced into oil palm ramets (host model). The endophytes selected were Diaporthe phaseolorum (WAA02), Trichoderma asperellum (T2), and Penicillium citrinum (BTF08). Ramets were first inoculated with 100 mL of fungal cells (106 cfu mL 1 ) via soil drenching. For the next 7 days, ramets were sampled and subjected to three different assays to detect and identify fungal colonization, and establish their proliferation potential in planta.

9p kequaidan1 16-11-2019 14 0   Download

We studied the arbuscular mycorrhizal (AM) and dark septate endophyte (DSE) fungal associations in five species of potgrown Asparagus (A. aethiopicus, A. densiflorus, A. setaceus, A. racemosus, and A. umbellatus). Root colonization by AM and DSE fungi and AM spore numbers in the soil were assessed. AM fungal diversity indices like species richness, Shannon–Weiner index, Simpson’s index, evenness, and Jaccard’s index were determined.

14p vikimsa 22-02-2019 8 0   Download

Avenacins are a mixture of 4 major (avenacin A-1, B-1, A-2 and B-2) autofluorescent compounds that are accumulated in the roots of oats (Avena spp.), especially root tips, and that have antimicrobial properties.

8p masterbarista 14-01-2019 14 1   Download

What are Trichoderma? Trichoderma spp. are fungi that are present in nearly all soils and other diverse habitats. In soil, they frequently are the most prevalent culturable fungi. They are favored by the presence of high levels of plant roots, which they colonize readily. Some strains are highly rhizosphere competent, i.e., able to colonize and grow on roots as they develop.

6p hanh001 01-10-2010 217 54   Download