Alleviation of chromium toxicity in maize by Fe fortification and chromium tolerant ACC deaminase producing plant growth promoting rhizobacteria

Danish, Subhan; Kiran, Sidra; Fahad, Shah; Ahmad, Niaz; Ali, Muhammad Arif; Tahir, Fayyaz Ahmad; Rasheed, Muhammad; Shahzad, Khurram; Li, Xiuling; Wang, Depeng; Mubeen, Muhammad; Abbas, Sunaina; Munir, Tariq Muhammad; Hashmi, Muhammad Zaffar; Adnan, Muhammad; Saeed, Beena; Saud, Shah; Khan, Mohammad Nauman; Ullah, Abid; Nasim, Wajid

doi:10.1016/j.ecoenv.2019.109706

Cited by 107 publications

(55 citation statements)

References 53 publications

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“…Ardakani et al [ 58 ] reported a significant enhancement in rice yield when PGPR i.e., Azospirillum lipoferum and Pseudomonas fluorescens were inoculated with fertilizer. The findings of Danish et al [ 21 ] also supported our results regarding the alleviation of heavy-metals stress by ACC deaminase-producing rhizobacteria.…”

Section: Discussionsupporting

confidence: 90%

“…Both PGPR can secrete ACC deaminase that cleaves ethylene. Findings of many scientists also support our above argument [ 12 , 21 , 29 , 34 , 35 , 44 , 45 , 46 , 47 ]. According to Glick et al [ 40 ] ACC deaminase breaks ethylene into α-ketobutyrate and ammonia.…”

Section: Discussionsupporting

confidence: 79%

“…It has been observed that Cd also shows an antagonistic relationship with calcium, manganese, magnesium, and potassium [ 19 , 20 ]. Furthermore, imbalance of water, alteration in membrane permeability, and instability of lipid membrane in plants play an imperative role in the reduction of growth and yield attributes in stress conditions [ 21 , 22 , 23 ].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Cadmium-Tolerant Rhizobacteria on Growth Attributes and Chlorophyll Contents of Bitter Gourd under Cadmium Toxicity

Zafar-ul-Hye

Naeem

Danish

et al. 2020

Plants

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Cadmium (Cd) is one of the heavy metals that negatively affects the growth of plants. High solubilization in water leads Cd to enter into plants quite easily, thus decreasing seed germination, photosynthesis, and transpiration. It also shows an antagonistic effect with many of the plants’ nutrients like Mn, Ca, K, Mg and Fe. Nowadays, inoculation of plants with ACC deaminase (ACCD) rhizobacteria to mitigate Cd’s adverse effects has drawn the attention of environmental microbiologists. The rhizobacteria secrete organic compounds that can immobilize Cd in soil. Therefore, this study was accomplished to investigate the effect of ACCD plant growth promoting rhizobacteria (PGPR) on the bitter gourd under Cd stress. There were six treatments consisting of two ACCD PGPR (Stenotrophomonas maltophilia and Agrobacterium fabrum) strains and inorganic fertilizers at two levels of Cd, i.e., 2 (Cd2) and 5 mg kg−1 soil (Cd5). The results showed A. fabrum with the recommended NPK fertilizer (RNPKF) significantly increased the vine length (48 and 55%), fresh weight (24 and 22%), and contents of chlorophyll a (79 and 50%), chlorophyll b (30 and 33%) and total chlorophyll (61 and 36%), over control at the two Cd levels i.e., Cd2 and Cd5, respectively. In conclusion, the recommended NPK fertilizer + A. fabrum combination is a very effective treatment with which to immobilize Cd in soil for the improvement of bitter gourd growth.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionsupporting

confidence: 79%

Section: Introductionmentioning

confidence: 99%

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Effect of Cadmium-Tolerant Rhizobacteria on Growth Attributes and Chlorophyll Contents of Bitter Gourd under Cadmium Toxicity

Zafar-ul-Hye

Naeem

Danish

et al. 2020

Plants

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“…To overcome this problem, organic amendments, bio-fertilizers and foliar fertilization are widely used practices that can increase phosphorus uptake in plants [ 16 , 17 , 18 , 19 , 20 , 21 , 22 ]. Among the different techniques, foliar fertilization has better potential to correct nutritional deficiencies in plants caused by the improper supply of nutrients to roots [ 23 , 24 , 25 ]. This practice is usually more economical and effective under certain conditions [ 26 ] and is generally considered efficient to supply nutrients quickly to a target organ.…”

Section: Introductionmentioning

confidence: 99%

Phosphorus Nutrient Management through Synchronization of Application Methods and Rates in Wheat and Maize Crops

Rafiullah

Khan

Muhammad

et al. 2020

Plants

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Management of inorganic fertilizer is very important to obtain maximum crop yield and improved nutrient use efficiency in cereal crops. Fixation of phosphatic fertilizers in alkaline soils due to calcareousness is one of the major hurdles. It induces phosphorus nutritional stress that can decrease the yield of maize and wheat. Selection of a suitable application method and proper stage of crop for phosphorus (P) fertilizer has prime importance in better uptake of P and crop production. Among different application methods, soil and foliar application are widely adopted. In wheat and maize, knee height + tasseling and stem elongation + booting are critical stages towards P deficiency. That is why field trials were conducted to evaluate the supplemental effect of foliar P on maize and wheat yields. For that, 144 mM KH2PO4 was applied as foliar at knee height + tasseling and stem elongation + boot stages in maize and wheat, respectively. Soil application of 0, 20, 40 and 60 kg P ha−1 was done through broadcast and band methods. Results showed that foliar spray of 144 mM KH2PO4 at knee height + tasseling and stem elongation + boot stages in wheat and maize significantly enhanced grains yield and phosphorus use efficiency (PUE) where P was applied as banding or broadcast at the time of sowing. A significant decreasing trend in response to increasing soil P levels validated the efficacious role and suitability of foliar P. In conclusion, the use of P as foliar at knee height + tasseling and stem elongation + boot stages is an efficacious way to manage P fertilizer.

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“…The roots of chickpea bear nodules in which symbiotic bacteria (e.g., rhizobia) convert atmospheric nitrogen to plant-available forms, which subsequently increases crop yields. In addition, the nodulated roots contribute a substantial amount of N to the soil [1,2].…”

Section: Introductionmentioning

confidence: 99%

Soil Fertility, N2 Fixation and Yield of Chickpea as Influenced by Long-Term Biochar Application under Mung–Chickpea Cropping System

et al. 2020

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A research study was established at the research farm of the University of Agriculture, Peshawar during winter 2018–2019. Commercial biochars were given to the experimental site from 2014 to summer 2018 and received 0.95, 130 and 60 tons ha−1 of biochar by various treatments viz., (Biochar1) BC1, (Biochar2) BC2, (Biochar3) BC3 and (Biochar4) BC4, respectively. This piece of work was conducted within the same study to find the long-term influence of biochar on the fertility of the soil, fixation of N2, as well as the yie1d of chickpea under a mung–chickpea cropping system. A split plot arrangement was carried out by RCBD (Randomized Complete Block Design) to evaluate the study. Twenty-five kilograms of N ha−1 were given as a starter dosage to every plot. Phosphorous and potassium were applied at two levels (half (45:30 kg ha−1) and full (90:60 kg ha−1) recommended doses) to each of the four biochar treatments. The chickpea crop parameters measured were the numbers and masses of the nodules, N2 fixation and grain yield. Soil parameters recorded were Soil Organic Matter (SOM), total N and mineral N. The aforementioned soil parameters were recorded after harvesting. The results showed that nodulation in chickpea, grain yield and nutrient uptake were significantly enhanced by phosphorous and potassium mineral fertilizers. The application of biochar 95 tons ha−1 significantly enhanced number of nodules i-e (122), however statistically similar response in terms of nodules number was also noted with treatment of 130 tons ha−1. The results further revealed a significant difference in terms of organic matter (OM) (%) between the half and full mineral fertilizer treatments. With the application of 130 tons ha−1 of biochar, the OM enhanced from 1.67% in the control treatment, to 2.59%. However, total and mineral nitrogen were not statistically enhanced by the mineral fertilizer treatment. With regard to biochar treatments, total and mineral N enhanced when compared with the control treatment. The highest total N of 0.082% and mineral nitrogen of 73 mg kg−1 in the soil were recorded at 130 tons ha−1 of biochar, while the lowest total N (0.049%) and mineral nitrogen (54 mg kg−1) in the soil were recorded in the control treatment. The collaborative influence of mineral fertilizers and biochars was found to be generally non-significant for most of the soil and plant parameters. It could be concluded that the aforementioned parameters were greater for treatments receiving biochar at 95 tons or more per hectare over the last several years, and that the combination of lower doses of mineral fertilizers further improved the performance of biochar.

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Alleviation of chromium toxicity in maize by Fe fortification and chromium tolerant ACC deaminase producing plant growth promoting rhizobacteria

Cited by 107 publications

References 53 publications

Effect of Cadmium-Tolerant Rhizobacteria on Growth Attributes and Chlorophyll Contents of Bitter Gourd under Cadmium Toxicity

Effect of Cadmium-Tolerant Rhizobacteria on Growth Attributes and Chlorophyll Contents of Bitter Gourd under Cadmium Toxicity

Phosphorus Nutrient Management through Synchronization of Application Methods and Rates in Wheat and Maize Crops

Soil Fertility, N2 Fixation and Yield of Chickpea as Influenced by Long-Term Biochar Application under Mung–Chickpea Cropping System

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