Chitosan and nano-structured chitin for biobased anti-microbial treatments onto cellulose based materials

2019 ◽  
Vol 113 ◽  
pp. 328-339 ◽  
Author(s):  
Luca Panariello ◽  
Maria-Beatrice Coltelli ◽  
Marco Buchignani ◽  
Andrea Lazzeri
Keyword(s):  
Plants ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1071
Author(s):  
Minchong Shen ◽  
Jiangang Li ◽  
Yuanhua Dong ◽  
Hong Liu ◽  
Junwei Peng ◽  
...  

Microbial treatment has recently been attracting attention as a sustainable agricultural strategy addressing the current problems caused by unreasonable agricultural practices. However, the mechanism through which microbial inoculants promote plant growth is not well understood. In this study, two phosphate-solubilizing bacteria (PSB) were screened, and their growth-promoting abilities were explored. At day 7 (D7), the lengths of the root and sprout with three microbial treatments, M16, M44, and the combination of M16 and M44 (Com), were significantly greater than those with the non-microbial control, with mean values of 9.08 and 4.73, 7.15 and 4.83, and 13.98 and 5.68 cm, respectively. At day 14 (D14), M16, M44, and Com significantly increased not only the length of the root and sprout but also the underground and aboveground biomass. Differential metabolites were identified, and various amino acids, amino acid derivatives, and other plant growth-regulating molecules were significantly enhanced by the three microbial treatments. The profiling of key metabolites associated with plant growth in different microbial treatments showed consistent results with their performances in the germination experiment, which revealed the metabolic mechanism of plant growth-promoting processes mediated by screened PSB. This study provides a theoretical basis for the application of PSB in sustainable agriculture.


1994 ◽  
Vol 19 (1) ◽  
pp. 236-236
Author(s):  
W. J. Moar ◽  
R. McCollum ◽  
R. Smith

Abstract Cotton was planted 23 Apr at the Wiregrass Experiment Substation in Headland, AL, in 8 row plots (36 inch centers) × 75 ft long with 25 ft alleys. Treatments were arranged in a RCBD with 4 replications. Applications were made with a high-clearance sprayer to deliver 8 gal/acre using TeeJet TX10 hollow cone tip nozzles on 18-inch spacing at 55 psi at 5 mph. Water pH was 7.2-7.4 and Prime Oil was used as a spreader/sticker at recommended rates. Foliar treatments were applied 4 times (16, 22 Jun and 9, 13 Jul) followed by 6 weekly applications of Karate starting 21 Jul in order to preserve the results of the microbial treatments. Treatments were evaluated 4 times (21, 25 Jun and 12, 16 Jul) at 3-5 DAT for the presence of eggs, larvae, and terminal damage by sampling 25 terminals in the middle 4 rows/plot. Yields were taken by mechanically harvesting the middle 2 rows/plot on 22 Oct.


2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Rabia Badar ◽  
Shamim A. Qureshi

The present study investigated the effects of composted rice husk (5 and 26; 10 g/2 kg of soil/pot) on growth and biochemical parameters of sunflower plants at the 30th and 60th day of germination. Result showed significant improvement in growth and biochemical parameters of plants as compared to control plants treated with uncomposted organic fertilizer. However, the effects vary with the microbial treatments involved in the composting of rice husk like composted with T. hamatum (JUF1), bradyrhizobium sp-II (JUR2) alone, and JUF1 in combination with Rhizobium sp-I (JUR1) were found effective in improving the shoot and root lengths, total chlorophyll, carbohydrate, crude protein, and mineral (nitrogen and phosphorus) content of sunflower plants. It indicates that composted rice husk with improved total carbohydrate and protein contents may increase the soil fertility by improving its organic content.


2008 ◽  
Vol 53 (No. 4) ◽  
pp. 158-166 ◽  
Author(s):  
M.N. Dos Santos Utmazian ◽  
P. Schweiger ◽  
P. Sommer ◽  
M. Gorfer ◽  
J. Strauss ◽  
...  

We conducted a pot experiment to evaluate the Cd and Zn accumulation in leaves and roots of <i>Salix smithiana</i> (BOKU-03DE-001) and <i>S. caprea</i> (BOKU-01AT-004) clones grown on a metal-contaminated soil as affected by native microbes extracted from the same experimental soil, and the fungus <i>Cadophora finlandica</i>. Plant biomass production of <i>S. smithiana</i> was decreased in all the treatments compared to the sterilized control. In contrast, <i>S. caprea</i> grew best on the non-sterilized soil. Similar effects were observed for plant Zn and Cd contents. Microbial treatments affected metal accumulation differently in the two <i>Salix</i> species. The effects of the microbial treatments on biomass and metal content of leaves were not related to the degree of mycorrhization. A comparison with literature data suggests that the plant response to microbial inoculation in terms of metal accumulation may depend on the plant-internal metal concentration. Our findings also illustrate a difficulty of successful rhizosphere management using metal-tolerant microbial isolates to further enhance the phytoextraction process.


IEEE Pulse ◽  
2019 ◽  
Vol 10 (5) ◽  
pp. 3-7
Author(s):  
Sarah Campbell

1986 ◽  
Vol 28 (3) ◽  
pp. 381-386 ◽  
Author(s):  
O. Milstein ◽  
Y. Vered ◽  
A. Sharma ◽  
J. Gressel ◽  
H. M. Flowers

2020 ◽  
Vol 12 (21) ◽  
pp. 9218
Author(s):  
Nermin Adel Hussein El Semary ◽  
Mohamed Helmi Hadj Alouane ◽  
Olfa Nasr ◽  
Munirah F. Aldayel ◽  
Fatimah H. Alhaweti ◽  
...  

The harmful effect of salinity stress on crops needs to be mitigated. Therefore, the application of microbial inoculum in combination with nanomaterials and methyl salicylate was investigated. Initially, different seeds were exposed to salinity levels treated with variable microbial treatments using different modes of applications. The microbial treatments included application of cyanobacterial strain Cyanothece sp. and the rhizobacterium Enterobacter cloacae, alone or in combination with one another, and a final treatment using combined microbial inoculum supplied with methyl salicylate. Later, different nanomaterials were used, namely, graphene, graphene oxide, and carbon nanotubes in combination with biofertilizers on the highest salinity level. The nanomaterial with microbial treatment and methyl salicylate were applied partly as a mixture in soil and partly as capsules. Results showed that salinity stress had a drastic inhibitory effect on growth parameters, especially at −5 MPa level. Nonetheless, the microbial treatments significantly alleviated the deleterious effect of salinity stress, especially when combined with methyl salicylate. When the nanomaterials were added to biofertilizers at highest salinity level, the inhibitory effect of salinity was mostly alleviated. Smart use of synergistic biofertilizers alongside the right nanomaterial, both encapsulated and in soil, would allow for mitigation and alleviation of inhibitory effect of salinity.


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