The role of microorganisms in mediating and facilitating the uptake of plant nutrients from soil

1984 ◽  
pp. 77-91 ◽  
Author(s):  
P. B. Tinker
Keyword(s):  
Plant Nutrients

scholarly journals Organic compounds in root exudates of Miscanthus × Giganteus greef et deu and limitation of microorganisms in its rhizosphere by nutrients

2010 ◽  
Vol 58 (5) ◽  
pp. 203-208 ◽  
Author(s):  
Hana Kaňová ◽  
Joffrey Carre ◽  
Valerie Vranová ◽  
Klement Rejšek ◽  
Pavel Formánek
Keyword(s):  
Organic Acids ◽  
Organic Compounds ◽  
Respiration Rate ◽  
Root Exudates ◽  
Plant Nutrients ◽  
Rhizospheric Soil ◽  
Polluted Soils ◽  
Rhizosphere Microorganisms ◽  
Miscanthus Giganteus

This study was conducted to determine the composition of sugars and organic acids in root exudates of Miscanthus × Giganteus and to find out if microorganisms of the rhizospheric soil are limited by mi­ne­ral nutrients. The following sugars and organic acids were determined in root exudates of this plant: glucose, saccharose, and acids such as succinic, propionic, citric, tartaric, malic, oxalic, ascorbic, acetic and fumaric. Respiration of soil from rhizosphere of Miscanthus × Giganteus was found to be limited by N, K and Ca. Respiration rate after application of mineral compounds increased in following orther: nitrate > calcium > potassium > ammonium, giving approx. 165, 99, 52 and 31 % increase compared to control. Further research is necessary to determine the role of plant nutrients from the point of their limitations for rhizosphere microorganisms, to broader very rare knowledges in this topic, especially for polluted soils to stimulate efficiency of phytoremediations.

scholarly journals The Role of Nanotechnology in the Fortification of Plant Nutrients and Improvement of Crop Production

2019 ◽  
Vol 9 (3) ◽  
pp. 499 ◽  
Author(s):  
Elias Elemike ◽  
Ifeyinwa Uzoh ◽  
Damian Onwudiwe ◽  
Olubukola Babalola
Keyword(s):  
Rural Areas ◽  
Environmental Effect ◽  
Crop Production ◽  
Nutrient Deficiency ◽  
Plant Nutrients ◽  
Food Crops ◽  
Nutrient Use ◽  
Food Content ◽  
Dietary Diversification

Nutrient deficiency in food crops is seriously affecting human health, especially those in the rural areas, and nanotechnology may become the most sustainable approach to alleviating this challenge. There are several ways of fortifying the nutrients in food such as dietary diversification, use of drugs and industrial fortification. However, the affordability and sustainability of these methods have not been completely achieved. Plants absorb nutrients from fertilizers, but most conventional fertilizers have low nutrient use and uptake efficiency. Nanofertilizers are, therefore, engineered to be target oriented and not easily lost. This review surveys the effects of the addition of macro- and nanonutrients to soil, the interaction, and the absorption capability of the plants, the environmental effect and food content of the nutrients. Most reports were obtained from recent works, and they show that plants nutrients could be enriched by applying nanoparticulate nutrients, which are easily absorbed by the plant. Although there are some toxicity issues associated with the use of nanoparticles in crop, biologically synthesized nanoparticles may be preferred for agricultural purposes. This would circumvent the concerns associated with toxicity, in addition to being pollution free. This report, therefore, offers more understanding on the application of nanotechnology in biofortification of plant nutrients and the future possibilities offered by this practice. It also highlights some of the ills associated with the introduction of nanomaterials into the soil for crop’s improvement.

Reappraising the role of plant nutrients as mediators of interactions between root- and foliar-feeding insects

2009 ◽  
Vol 23 (4) ◽  
pp. 699-706 ◽  
Author(s):  
Scott N. Johnson ◽  
Cathy Hawes ◽  
Alison J. Karley
Keyword(s):  
Plant Nutrients

scholarly journals The Role of Cyanobacteria in Availability of Major Plant Nutrients and Soil Organic Matter to Rice Crop under Saline Soil Condition

2017 ◽  
Vol 33 (4) ◽  
Author(s):  
Zakirullah Jan ◽  
Shamsher Ali ◽  
Tariq Sultan ◽  
Wasiullah Wasiullah ◽  
Wiqar Ahmad
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Saline Soil ◽  
Soil Condition ◽  
Plant Nutrients ◽  
Rice Crop

Role of Silicon in Enrichment of Plant Nutrients and Protection from Biotic and Abiotic Stresses

2013 ◽  
pp. 39-56 ◽  
Author(s):  
Durgesh Kumar Tripathi ◽  
Vijay Pratap Singh ◽  
Savita Gangwar ◽  
Sheo Mohan Prasad ◽  
Jagat Narayan Maurya ◽  
...  
Keyword(s):  
Abiotic Stresses ◽  
Plant Nutrients ◽  
Biotic And Abiotic Stresses

scholarly journals Elemental Profiles in Cycas micronesica Stems

Plants ◽  
2018 ◽  
Vol 7 (4) ◽  
pp. 94 ◽  
Author(s):  
Thomas Marler
Keyword(s):  
Tree Species ◽  
Plant Nutrients ◽  
The Other ◽  
Essential Nutrients ◽  
Elemental Concentrations ◽  
Nutrient Relations ◽  
Tree Stem

Essential nutrients and metals have been quantified in stems of many tree species to understand the role of stems as storage and source organs. Little is known about stored stem resources of cycad tree species. Cycas micronesica tissue was collected from apical and basal axial regions of stems; and pith, vascular, and cortex tissues were separated into three radial regions. Leaves were also sampled to provide a comparison to stems. Minerals and metals were quantified in all tissues. Minerals and metals varied greatly among the six stem sections. Phosphorus varied more among the three radial sections than the other macronutrients, and zinc and nickel varied more than the other micronutrients. Stem carbon was less than and stem calcium was greater than expected, based on what is currently known tree stem concentrations in the literature. Elemental concentrations were generally greater than those previously reported for coniferous gymnosperm trees. Moreover, the stem concentrations were high in relation to leaf concentrations, when compared to published angiosperm and conifer data. The results indicated that the addition of more cycad species to the literature will improve our understanding of gymnosperm versus angiosperm stem nutrient relations, and that the non-woody cycad stem contains copious essential plant nutrients that can be mobilized and deployed to sinks when needed.

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