Phytoremediation with Augmentation of Oxalic Acid of Toxic Metals Contaminated Saline Soil by Suaeda salsa: Effects on Metal Translocation and Plant Physiology

2021 ◽  
Author(s):  
Meng Wei ◽  
Jingkuan Sun ◽  
Nan Wu ◽  
Zhicheng Dong
Keyword(s):  
Plant Physiology ◽  
Oxalic Acid ◽  
Toxic Metals ◽  
Saline Soil ◽  
Suaeda Salsa ◽  
Metal Translocation

scholarly journals Suaeda salsa/Zea mays L. intercropping in saline soil on plant growth and rhizospheric physiological processes

2021 ◽  
Author(s):  
Shoule Wang ◽  
Zhenyong Zhao ◽  
Shaoqing Ge ◽  
Ke Zhang ◽  
Changyan Tian ◽  
...  
Keyword(s):  
Zea Mays ◽  
Saline Soil ◽  
Salt Content ◽  
Treated Group ◽  
Suaeda Salsa ◽  
Nitrogen And Phosphorus ◽  
Available Nitrogen ◽  
Physiological Processes ◽  
Soil Salt Content ◽  
Soil Salt

Abstract Background and aims Halophytes possess the capacity to uptake high levels of salt through physiological processes and their root architecture. Here, we investigated whether halophyte/non-halophyte intercropping in saline soil decreases the soil salt content and contains root-dialogue. Methods Field and pot experiments were conducted to determine the plant biomasses and salt and nutrient distributions in three suaeda (Suaeda salsa) / maize (Zea mays L.) intercropping systems. The three treatments were set up by non-barrier, nylon barrier and plastic barrier between plant roots. Results The biomass of the non-barrier-treated maize was significantly lower than that of the nylon barrier-treated maize, whereas the suaeda root biomass showed a limited increase. The soil salt content negatively affected the non-barrier group’s roots compared with those in the nylon and plastic barrier-treated groups, and it was also higher on the maize side of the nylon-barrier treatment. There were higher available nitrogen and phosphorus contents in the soil of the non-barrier- and nylon barrier-treated groups compared with the plastic barrier-treated group. In addition, the pH was lower, and the available potassium content was higher, which suggested that rhizospheric processes occurred between the two species. Conclusions The suaeda/maize intercropping would decrease the soil salt content, and they also revealed potential rhizospheric effects though the role of root, which provides an effective way for the improvement of saline-alkali land.

Effects of Trichoderma harzianum T83 on Suaeda salsa L. in coastal saline soil

2016 ◽  
Vol 91 ◽  
pp. 58-64 ◽  
Author(s):  
Li-Hua Chen ◽  
Jin-Hai Zheng ◽  
Xiao-Hou Shao ◽  
Shan-Shan Shen ◽  
Zhi-Heng Yu ◽  
...  
Keyword(s):  
Trichoderma Harzianum ◽  
Saline Soil ◽  
Suaeda Salsa ◽  
Coastal Saline Soil

scholarly journals Provide Student Knowledge About How Response On Growth Of Vetiver Seeds (Vetiveria zizanioides) In Saline Soil To Ascorbic Acid on Field Practice Learning of Plant Physiology

2021 ◽  
Vol 22 (1) ◽  
pp. 126-138
Author(s):  
Aisar Novita ◽  
Suwandi Saragih ◽  
Efrida Lubis ◽  
Abdul Rahman Gemda ◽  
Fitria Fitria ◽  
...  
Keyword(s):  
Plant Physiology ◽  
Ascorbic Acid ◽  
Plant Height ◽  
Saline Soil ◽  
Block Design ◽  
Cellular Level ◽  
Vetiveria Zizanioides ◽  
Student Knowledge ◽  
Randomized Block Design ◽  
Number Of Leaves

Vetiver root is a commodity that is tolerant enough to be planted in salty soils with a certain level of salinity. One approach to increase oxidative stress tolerance that will increase the enzyme substrate at the cellular level is ascorbic acid. The purpose of this study was to increase students' knowledge about how the response of vetiver seed (Vetiveria zizanioides) growth in salt soils to ascorbic acid through practical field learning in plant physiology courses. This research was conducted using a factorial randomized block design (RBD), the first factor was the salinity (S), namely S0: 0 dsm-1 and S1: 4 dsm-1. The second factor was ascorbic acid (A), namely A0: without treatment, A1: 50 ppm, A2: 100 ppm and A3: 150 ppm. There were 8 treatment combinations that were repeated 3 times resulting in 24 experimental units. The parameters observed were plant height, number of leaves and number of stomata. In this study, ascorbic acid had a significant effect on plant height, number of leaves and number of stomata. Saline soil had a significant effect on the number of stomata parameters. No interactions for all parameters were observed.

scholarly journals Role of Oxalic Acid Overexcretion in Transformations of Toxic Metal Minerals by Beauveria caledonica

2005 ◽  
Vol 71 (1) ◽  
pp. 371-381 ◽  
Author(s):  
M. Fomina ◽  
S. Hillier ◽  
J. M. Charnock ◽  
K. Melville ◽  
I. J. Alexander ◽  
...  
Keyword(s):  
Oxalic Acid ◽  
Toxic Metals ◽  
Toxic Metal ◽  
Local Environment ◽  
Mineral Dissolution ◽  
Mineral Matter ◽  
Crystal Deposition ◽  
Lead And Zinc ◽  
Carboxylic Groups ◽  
Copper Phosphate

ABSTRACT The fungus Beauveria caledonica was highly tolerant to toxic metals and solubilized cadmium, copper, lead, and zinc minerals, converting them into oxalates. This fungus was found to overexcrete organic acids with strong metal-chelating properties (oxalic and citric acids), suggesting that a ligand-promoted mechanism was the main mechanism of mineral dissolution. Our data also suggested that oxalic acid was the main mineral-transforming agent. Cadmium, copper, and zinc oxalates were precipitated by the fungus in the local environment and also in association with the mycelium. The presence of toxic metal minerals often led to the formation of mycelial cords, and in the presence of copper-containing minerals, these cords exhibited enhanced excretion of oxalic acid, which resulted in considerable encrustation of the cords by copper oxalate hydrate (moolooite). It was found that B. caledonica hyphae and cords were covered by a thick hydrated mucilaginous sheath which provided a microenvironment for chemical reactions, crystal deposition, and growth. Cryo-scanning electron microscopy revealed that mycogenic metal oxalates overgrew parental fungal hyphae, leaving a labyrinth of fungal tunnels within the newly formed mineral matter. X-ray absorption spectroscopy revealed that oxygen ligands played a major role in metal coordination within the fungal biomass during the accumulation of mobilized toxic metals by B. caledonica mycelium; these ligands were carboxylic groups in copper phosphate-containing medium and phosphate groups in pyromorphite-containing medium.

scholarly journals Effects of biochar application on Suaeda salsa growth and saline soil properties

2016 ◽  
Vol 75 (8) ◽  
Author(s):  
Junna Sun ◽  
Fuhong He ◽  
Hongbo Shao ◽  
Zhenhua Zhang ◽  
Gang Xu
Keyword(s):  
Soil Properties ◽  
Saline Soil ◽  
Suaeda Salsa

scholarly journals The Effects of Suaeda salsa/Zea mays L. Intercropping on Plant Growth and Soil Chemical Characteristics in Saline Soil

Agriculture ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 107
Author(s):  
Shoule Wang ◽  
Zhenyong Zhao ◽  
Shaoqing Ge ◽  
Ke Zhang ◽  
Changyan Tian ◽  
...  
Keyword(s):  
Zea Mays ◽  
Plant Growth ◽  
Zea Mays L ◽  
Root Zone ◽  
Saline Soil ◽  
Nutrient Content ◽  
Suaeda Salsa ◽  
Available N ◽  
Physiological Processes ◽  
Set Up

Halophytes possess the capacity to uptake high levels of salt through physiological processes and their root architecture. Here, we investigated whether halophyte/non-halophyte intercropping in saline soil benefits plant growth and contains root-dialogue between interspecific species. Field and pot experiments were conducted to determine the plant biomasses and salt and nutrient distributions in three suaeda (Suaeda salsa)/maize (Zea mays L.) intercropping systems, set up by non-barrier, nylon-barrier, and plastic-barrier between plant roots. The suaeda/maize intercropping obviously transferred more Na+ to the suaeda root zone and decreased salt and Na+ contents. However, the biomass of the non-barrier-treated maize was significantly lower than that of the nylon and plastic barrier-treated maize. There was lower available N content in the soil of the non-barrier treated groups compared with the plastic barrier-treated groups. In addition, the pH was lower, and the available nutrient content was higher in the nylon barrier, which suggested that rhizospheric processes might occur between the two species. Therefore, we concluded that the suaeda/maize intercropping would be beneficial to the salt removal, but it caused an adverse effect for maize growth due to interspecific competition, and also revealed potential rhizospheric effects through the role of roots. This study provides an effective way for the improvement of saline land.

Ectodesmata as Revealed By Freeze-Etch Preparations of Plant Epidermal Cell Walls

1973 ◽  
Vol 31 ◽  
pp. 468-469
Author(s):  
N.C. Lyon ◽  
W. C. Mueller
Keyword(s):  
Electron Microscopy ◽  
Acetic Acid ◽  
Nitric Acid ◽  
Oxalic Acid ◽  
Light Microscopy ◽  
Epidermal Cell ◽  
Cell Walls ◽  
Plant Viruses ◽  
Plant Leaves ◽  
Thin Sections

Schumacher and Halbsguth first demonstrated ectodesmata as pores or channels in the epidermal cell walls in haustoria of Cuscuta odorata L. by light microscopy in tissues fixed in a sublimate fixative (30% ethyl alcohol, 30 ml:glacial acetic acid, 10 ml: 65% nitric acid, 1 ml: 40% formaldehyde, 5 ml: oxalic acid, 2 g: mecuric chloride to saturation 2-3 g). Other workers have published electron micrographs of structures transversing the outer epidermal cell in thin sections of plant leaves that have been interpreted as ectodesmata. Such structures are evident following treatment with Hg++ or Ag+ salts and are only rarely observed by electron microscopy. If ectodesmata exist without such treatment, and are not artefacts, they would afford natural pathways of entry for applied foliar solutions and plant viruses.

Sign in / Sign up

Export Citation Format

Share Document