Alterations of P Fractions and Some Biochemical Features in Rhizosphere Soil Induced by the Root Activities of Citrus Rootstocks with Different P Acquisition Efficiency

2021 ◽  
Author(s):  
Tahereh Raiesi ◽  
Bijan Moradi ◽  
Seyed Majid Mousavi
Keyword(s):  
Rhizosphere Soil ◽  
P Fractions ◽  
P Acquisition ◽  
Biochemical Features

Elevated levels of acid and alkaline phosphatase activity in roots and rhizosphere of cowpea (Vigna unguiculata L. Walp.) genotypes grown in mixed culture and at different densities with sorghum (Sorghum bicolor L.)

2010 ◽  
Vol 61 (4) ◽  
pp. 279 ◽  
Author(s):  
Joachim H. J. R. Makoi ◽  
Samson B. M. Chimphango ◽  
Felix D. Dakora
Keyword(s):  
Alkaline Phosphatase ◽  
Phosphatase Activity ◽  
Mixed Culture ◽  
Alkaline Phosphatase Activity ◽  
Inductively Coupled Plasma ◽  
Plant Density ◽  
Rhizosphere Soil ◽  
P Acquisition ◽  
Acid And Alkaline Phosphatase ◽  
High Plant Density

The aim of this study was to assess P acquisition efficiency in 5 cowpea genotypes in mixed culture and at different plant densities using assays of acid and alkaline phosphatase activity and measurement of P in organs. Five cowpea genotypes (2 improved cvv. ITH98-46 and TVu1509, and 3 farmer-selected varieties, namely Bensogla, Sanzie, and Omondaw) were grown in the field at 2 planting densities (83 333 and 166 666 plants/ha) under monoculture and mixed culture with sorghum during 2005 and 2006. Fresh plant roots and rhizosphere soils were collected during the 2 years of experimentation, and assayed for acid and alkaline phosphatase activity. P concentrations in root tissue and rhizosphere soil were also determined using inductively coupled plasma-mass spectrometry. The data for 2005 and 2006 were similar, and therefore pooled for statistical analysis. Our results showed that raising cowpea density from 83 333 to 166 666 plants/ha significantly increased both acid and alkaline phosphatase activity in the rhizosphere, just as mixed culture (or intercropping) also increased the acid and alkaline phosphatase activity in cowpea rhizosphere soil. High plant density and mixed culture (or intercropping) also raised the acid phosphatase activity in fresh roots of cowpea plants. The increased enzyme activity in roots and rhizosphere soil resulted in significantly improved P nutrition in cowpea, greater plant growth, and higher grain yield in the farmer-selected varieties, especially cv. Sanzie. This suggests that field-grown legumes can be screened for high P acquisition efficiency by assaying for acid and alkaline phosphatase activities.

The Clinical and Biochemical Features of Hepatic Insufficiency

1953 ◽  
Vol 25 (4) ◽  
pp. 471-486 ◽  
Author(s):  
Hugh R. Butt ◽  
Donald S. Amatuzio ◽  
Jesse L. Bollman ◽  
George J. Gabuzda ◽  
Button Giges ◽  
...  
Keyword(s):  
Hepatic Insufficiency ◽  
Biochemical Features

Endogenous Cushing's syndrome ( clinical and biochemical features in a large cohort of patients

2017 ◽  
Author(s):  
Lucio Vilar ◽  
Clarice Vilar ◽  
Jose Luciano Albuquerque ◽  
Erik Trovao ◽  
Ana Carolina The ◽  
...  
Keyword(s):  
Cushing’S Syndrome ◽  
Cushing's Syndrome ◽  
Large Cohort ◽  
Biochemical Features

1375-P: Acquisition of Self-Care in Youth with Type 1 Diabetes (T1D) Varies by Age and Task

Diabetes ◽  
2019 ◽  
Vol 68 (Supplement 1) ◽  
pp. 1375-P ◽  
Author(s):  
REBECCA O. LA BANCA ◽  
LISA K. VOLKENING ◽  
LORI M. LAFFEL
Keyword(s):  
Type 1 Diabetes ◽  
Self Care ◽  
P Acquisition ◽  
And Task

Improved Plant Diversity as a Strategy to Increase Available Soil Phosphorus

2019 ◽  
Vol 103 (1) ◽  
pp. 43-45 ◽  
Author(s):  
Carlos Crusciol ◽  
João Rigon ◽  
Juliano Calonego ◽  
Rogério Soratto
Keyword(s):  
Crop Yields ◽  
Soil Phosphorus ◽  
Cropping System ◽  
P Availability ◽  
P Fractions ◽  
Crop Species ◽  
Soil P ◽  
Residue Decomposition ◽  
Available Soil Phosphorus ◽  
Crop Residue Decomposition

Some crop species could be used inside a cropping system as part of a strategy to increase soil P availability due to their capacity to recycle P and shift the equilibrium between soil P fractions to benefit the main crop. The release of P by crop residue decomposition, and mobilization and uptake of otherwise recalcitrant P are important mechanisms capable of increasing P availability and crop yields.

Screening and antimicrobial activity of actinomycetes isolated from the rhizosphere of Clitoria ternatea

2016 ◽  
Vol 1 (01) ◽  
Author(s):  
Vemavarapu Bhaskara Rao ◽  
Kandlagunta Guru Prasad ◽  
Krishna Naragani ◽  
Vijayalakshmi Muvva
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Candida Albicans ◽  
Calcium Carbonate ◽  
Rhizosphere Soil ◽  
Soil Samples ◽  
Antimicrobial Spectrum ◽  
Clitoria Ternatea ◽  
Primary Screening

The air dried rhizosphere soil samples pretreated with calcium carbonate was employed for the isolation of actinomycete strains. Serial dilution plate technique was used for the isolation of actinomycetes. A total of 20 actinomycete strains designated as BS1-BS20 were isolated from the rhizosphere of medicinal plant Clitoria ternatea. All the 20 strains were subjected to primary screening for antimicrobial activity. Among the 20 strains screened, 10 strains exhibited high antimicrobial spectrum against Staphylococcus aureus, Escherichia coli and Candida albicans.

KEBERADAAN BAKTERI PELARUT FOSFAT DAN AKTIVITAS ENZIM FOSFATASE TANAH DAERAH PERAKARAN TANAMAN OBAT DARI KEBUN RAYA CIBODAS

2018 ◽  
Vol 6 (3) ◽  
Author(s):  
Suliasih Suliasih
Keyword(s):  
Alkaline Phosphatase ◽  
Soil Sample ◽  
Rhizosphere Soil ◽  
Botanical Garden ◽  
Soil Enzyme ◽  
Soil Samples ◽  
Phosphate Solubilizing Bacteria ◽  
Bacillus Sp ◽  
Phosphate Solubilizing ◽  
Serratia Rubidaea

A study was undertaken to investigate to occurance of phosphate solubilizing bacteria from rhizosphere soil samples of medicine plants in Cibodas Botanical Garden. 13 soil samples of medicine plants are collected randomly The result shows that 71 isolates of phosphate solubilizing bacteria were isolated, and 10 species of these organism was identified as Azotobacter sp, Bacillus sp, Chromobacterium sp, C.violaceum, Citrobacter sp. , Enterobacter sp., E. liquefaciens. Nitrosomonas sp., Serratia rubidaea, Sphaerotillus natans. Azotobacter sp. And Bacillus sp. Are found in all of soil tested. Conversely, Serratia rubidaea is only in the sample from rhizosphere of Plantago mayor The activity of acid alkaline phosphatase in soil tested ranged from 0.78 – 60,18 ugp nitrophenole/g/h, with the higest values being recorded in soil sample from rhizosphere of “Lavender”.Keywords : phosphate solubilizing bacteria, soil enzyme phosphatase

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