Arsenic-resistant bacteria solubilized arsenic in the growth media and increased growth of arsenic hyperaccumulator Pteris vittata L.

2011 ◽  
Vol 102 (19) ◽  
pp. 8756-8761 ◽  
Author(s):  
Piyasa Ghosh ◽  
Bala Rathinasabapathi ◽  
Lena Q. Ma
Keyword(s):  
Pteris Vittata ◽  
Resistant Bacteria ◽  
Growth Media ◽  
Arsenic Hyperaccumulator ◽  
Arsenic Resistant Bacteria ◽  
Pteris Vittata L

Characterization of arsenic-resistant bacteria from the rhizosphere of arsenic hyperaccumulatorPteris vittata

2010 ◽  
Vol 56 (3) ◽  
pp. 236-246 ◽  
Author(s):  
Anhui Huang ◽  
Max Teplitski ◽  
Bala Rathinasabapathi ◽  
Lena Ma
Keyword(s):  
Microbial Community ◽  
Osmotic Stress ◽  
Pteris Vittata ◽  
Resistant Bacteria ◽  
Bacterial Isolates ◽  
Oxidative Stresses ◽  
Arsenic Hyperaccumulator ◽  
Arsenic Detoxification ◽  
Arsenic Resistant Bacteria

Arsenic hyperaccumulator fern Pteris vittata L. produces large amounts of root exudates that are hypothesized to solubilize arsenic and maintain a unique rhizosphere microbial community. Total heterotrophic counts on rich or defined media supplemented with up to 400 mmol/L of arsenate showed a diverse arsenate-resistant microbial community from the rhizosphere of P. vittata growing in arsenic-contaminated sites. Twelve bacterial isolates tolerating 400 mmol/L of arsenate in liquid culture were identified. Selected bacterial isolates belonging to different genera were tested for their resistance to osmotic and oxidative stresses. Results showed that growth was generally better under osmotic stress generated by arsenic than under that generated by NaCl or PEG 6000, demonstrating that arsenic detoxification metabolism also cross-protected bacterial isolates from arsenic-induced osmotic stress. After 32 h of growth, all arsenate at 1 mmol/L was reduced to arsenite by strains Naxibacter sp. AH4, Mesorhizobium sp. AH5, and Pseudomonas sp. AH21, but arsenite at 1 mmol/L remained unchanged. Sensitivity to hydrogen peroxide was similar to that in broad-host pathogen Salmonella enterica sv. Typhimurium wild type, except strain AH4. The results suggested that these arsenic-resistant bacteria are metabolically adapted to arsenic-induced osmotic or oxidative stresses in addition to the specific bacterial system to exclude cellular arsenic. Both these adaptations contribute to the high arsenic resistance in the bacterial isolates.

Effects of selenium on arsenic uptake in arsenic hyperaccumulator Pteris vittata L.

2009 ◽  
Vol 100 (3) ◽  
pp. 1115-1121 ◽  
Author(s):  
Mrittunjai Srivastava ◽  
Lena Q. Ma ◽  
Bala Rathinasabapathi ◽  
Pratibha Srivastava
Keyword(s):  
Pteris Vittata ◽  
Arsenic Uptake ◽  
Arsenic Hyperaccumulator ◽  
Pteris Vittata L

Arsenic transformation in the growth media and biomass of hyperaccumulator Pteris vittata L.

2010 ◽  
Vol 101 (21) ◽  
pp. 8024-8030 ◽  
Author(s):  
Shiny Mathews ◽  
Lena Q. Ma ◽  
Bala Rathinasabapathi ◽  
Seenivasan Natarajan ◽  
Uttam K. Saha
Keyword(s):  
Pteris Vittata ◽  
Growth Media ◽  
Arsenic Transformation ◽  
Pteris Vittata L

The fronds tonoplast quantitative proteomic analysis in arsenic hyperaccumulator Pteris vittata L.

2014 ◽  
Vol 105 ◽  
pp. 46-57 ◽  
Author(s):  
Hongling Shen ◽  
Zhenyan He ◽  
Huili Yan ◽  
Zenan Xing ◽  
Yanshan Chen ◽  
...  
Keyword(s):  
Proteomic Analysis ◽  
Pteris Vittata ◽  
Quantitative Proteomic Analysis ◽  
Arsenic Hyperaccumulator ◽  
Pteris Vittata L

Arsenic uptake, arsenite efflux and plant growth in hyperaccumulator Pteris vittata: Role of arsenic-resistant bacteria

Chemosphere ◽  
2016 ◽  
Vol 144 ◽  
pp. 1937-1942 ◽  
Author(s):  
Yong-He Han ◽  
Jing-Wei Fu ◽  
Yanshan Chen ◽  
Bala Rathinasabapathi ◽  
Lena Q. Ma
Keyword(s):  
Plant Growth ◽  
Pteris Vittata ◽  
Resistant Bacteria ◽  
Arsenic Uptake ◽  
Arsenic Resistant Bacteria

Arsenic reduced scale-insect infestation on arsenic hyperaccumulator Pteris vittata L.

2009 ◽  
Vol 65 (2-3) ◽  
pp. 282-286 ◽  
Author(s):  
Shiny Mathews ◽  
Lena Q. Ma ◽  
Bala Rathinasabapathi ◽  
Robert H. Stamps
Keyword(s):  
Scale Insect ◽  
Pteris Vittata ◽  
Insect Infestation ◽  
Arsenic Hyperaccumulator ◽  
Pteris Vittata L ◽  
Reduced Scale
Sign in / Sign up

Export Citation Format

Share Document