Impacts of Arbuscular Mycorrhizal fungi and Pseudomonas putida on distribution of some heavy metals in soils and faba bean plants

Attia, M.

Impacts of Arbuscular Mycorrhizal fungi and Pseudomonas putida on distribution of some heavy metals in soils and faba bean plants [electronic resource]. تأثير فطريات الميكوريزا وبكتريا Pseudomonas putida على توزيع العناصر الثقيلة فى الارض ونباتات الفول البلدى. - P.155-167.

Includes references.

Field experiment was carried out to examine the interactions between Ps. putida and arbuseular mycorrhizal (AM) fungi and their effects on nodulation and elements distribution in faba bean plants and soil in the presence of 25 or 50% mineral fertilizers (NPK). The soil before cultivation have noticeable amounts of copper and zinc in total form also Cu and Zn in available form. During the plant growth, the soil pollution rate increased with the investigated elements except Cu which decreased. The best treatment led to decrease the soil pollution lead is to inoculation plants with AM fungi plus Ps. putida and in combination with 50% NPK. Stimulation of AM fungi colonization by a Ps. putida was noted. AM fungi alone were significantly enhanced nodulation. Significantly more nodules had developed on the root systems of faba bean plants inoculation with Ps. putida + AM fungi compared to AM alone or uninoculated control. Plant inoculation with both organisms increased the population of Pseudomonas spp. The best treatments to decrease Cu pollution are those inoculated with AM fungi + 25% NPK followed by AM fungi+Ps.+50%NPK in mature stage. All plant parts contained Pb and in mature stage the beast treatment to decrease Pb pollution is to use 25% NPK+ AM fungi. The concentration of zinc in all young plant parts are higher than 400 mg/kg then decreased when the plant growth reached mature stage. The use 50% NPK +AM fungi is the best treatment to decrease Zn content in the tested plant.


Summary in Arabic.


Fava bean--Fertilzers.
Soils--Heavy metal content--Analysis.
Mycorrhizal fungi.
Soil pollution--Environmental aspects.
Pseudomonas putida.

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