Consequence of phosphate solubilising microbes in sustainable agriculture as efficient microbial consortium: A review Verma Jay Prakash1,*, Jaiswal Durgesh Kumar1, Singh Saurabh1, Kumar Ashok2, Prakash Satya3, Curá José Alfredo4 1Department of Environment and Sustainable Development, Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi-221005, Uttar Pradesh, India 2Department of Botany, MMV, Faculty of Science, Banaras Hindu University, Varanasi-221005, Uttar Pradesh, India 3Department of Geology, Faculty of Science, Banaras Hindu University, Varanasi-221005, Uttar Pradesh, India 4Cátedra de Bioquímica, Facultad de Agronomía, UBA, Av. San Martín 4453, C1417DSE Ciudad, Autónoma de Buenos Aires, Argentina *Corresponding author E-mail id: verma_bhu@yahoo.co.in, jpv.iesd@bhu.ac.in
Online published on 17 July, 2017. Abstract Phosphorus is an essential nutrient for plant growth and yield. Currently, phosphorus fixation in soil is a major problem throughout the world as available phosphorus in soil is highly reactive with cationic elements to form complex compounds. Rock phosphate is one of the cheapest fertiliser and most abundant; however, its direct application in soils is not much effective for the availability of phosphorus to plant growth due to its low reactivity. Further, phosphorus is present as a fixed or complex form in soils, which is unavailable for plants. Phosphate solubilising microbes (PSMs) have potential to solubilise the complex form of phosphate in the available form of phosphorus to plants. PSMs have different mechanisms for solubilisation of phosphate by producing various acids and enzymes. Other mechanisms of phosphate solubilisation and mineralisation follow chelation and immobilised cell technology. All such phosphate solubilisation mechanisms by PSMs have been discussed in this article. The current need to develop genetically modified PSM as efficient PSMs strains for sustainable agricultural production is also discussed in the present review. The PSMs is known as effective biofertiliser for enhancing the plant growth, yield and nutrient content in crops as well as improve the soil fertility under sustainable agriculture. The main aim of this review was to elaborate the phosphate solubilising activities and their consequences for sustainable agriculture. Top Keywords Rock Phosphate, Phosphate Solubilisation, Genetically Modified Phosphate-Solubilising Microorganism, Sustainable Agriculture, Biofertilizer, Phosphorus, Soil Fertility. Top |