Interferences of Inorganic Arsenic (III & V) on Growth and Development of Rice (Oryza sativa L.) With Special Emphasis on Root and Coleoptile Growth

Abstract A short-term phytotoxicity experiment was conducted on four varieties of rice (Oryza sativa L.) under the influence of arsenic (III & V) to evaluate the impact on root and coleoptiles growth. Four varieties (GB-1, IET-4786, IET-4094, and MTU-1010) of rice were undertaken for this study with different concentrations (0, 5, 10, 25 and 50 mg/L) of arsenic (III & V). Germination along with mean daily germination (MDG), length of root and coleoptile, water holding capacity of root and coleoptiles, fresh and dry weight, arsenic accumulation, MDA and root ion leakage were evaluated. Results highlighted that the percent germination of IET-4094 and MTU-1010 varieties of rice seed over control decreased significantly (p < 0.05) with increasing concentration of both arsenite and arsenate. However, the percent germination of GB-I and IET-4786 dose not affected on the different concentration of both arsenate and arsenite. The root and coleoptile length of all the four varieties showed remarkable decreasing trend over control with increasing concentration of both arsenite and arsenate. However, more pronounced effects were observed for arsenite than arsenate. Similarly, biomass of shoot is less affected than root under different concentration of arsenite and arsenate. The variety IET-4786 and MTU-1010, accumulated lower level of arsenic and variety GB-1 accumulate higher level of MDA level in root under both arsenite and arsenate treatments. Therefore, it can be concluded that the variety IET-4786 and MTU-1010 are the suitable varieties towards phytoremediation of both arsenite and arsenate. Moreover, farmers of arsenic contaminated area are recommended to cultivate IET-4786 and MTU-1010 varieties.

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Analysis of Arsenic Accumulation and its Effects on the Ionome Profile of Rice (Oryza sativa L.) Plants

International Journal of Plant and Environment ◽

10.18811/ijpen.v5i03.1 ◽

2019 ◽

Vol 5 (03) ◽

pp. 141-148

Author(s):

Sudhakar Srivastava

Keyword(s):

Oryza Sativa ◽

Oryza Sativa L ◽

Health And Safety ◽

Progressive Increase ◽

Health Concern ◽

Rice Seedlings ◽

Rice Plants ◽

Arsenic Accumulation ◽

Leaves And Roots ◽

The Impact

The accumulation of arsenic (As), a toxic carcinogenic element, in rice plants is a matter of significant environmental and human health concern. This study was performed to analyze the impact of As on ionome profile of rice (Oryza sativa L.) plants. The rice seedlings were subjected either to fixed concentration of 20 μM arsenite [As(III)] for different durations (1, 3, 7, 15 and 30 d) or to different concentrations of As(III) (0, 3, 5, 10, 20, and 50 μM) for fixed duration of 15 d. In both concentration- and duration-dependent experiments, As concentration in leaves and roots was found to increase progressively. The maximum As level was observed at 50 μM in concentration dependent experiment (185 μg g-1 dw in leaves and 9027 μg g-1 dw in roots) and at 30 d in duration dependent experiment (78 μg g-1 dw in leaves and 6175 μg g-1 dw in roots). In concentration dependent experiment, Ni showed a progressive increase while Cu (at all concentrations) and Mn (beyond 5 μM) a decline in both leaves and roots. Zn and Co showed an increase in leaves while a decline in roots. A similar trend of different element concentration was recorded in duration dependent experiment. The present analyses thus highlight that As exposure has profound influence on elemental composition of rice seedlings. Therefore, the health and safety aspects of As impacted rice plants must also be assessed from the perspective of other elemental concentrations.

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The impact of iron plaque on La and Nd uptake and translocation in rice ( Oryza sativa L.)

Acta Ecologica Sinica ◽

10.1016/j.chnaes.2017.11.002 ◽

2018 ◽

Vol 38 (3) ◽

pp. 210-215 ◽

Cited By ~ 1

Author(s):

Zhongjun Hu ◽

Shulan Jin ◽

Yizong Huang ◽

Ying Hu ◽

Wei Cheng ◽

...

Keyword(s):

Oryza Sativa ◽

Oryza Sativa L ◽

Iron Plaque ◽

The Impact

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Image analysis based on color, shape and texture for rice seed ( Oryza sativa L. ) germination evaluation

Agriculture and Natural Resources ◽

10.1016/j.anres.2017.12.002 ◽

2017 ◽

Vol 51 (5) ◽

pp. 383-389 ◽

Cited By ~ 7

Author(s):

Benjamaporn Lurstwut ◽

Chomtip Pornpanomchai

Keyword(s):

Image Analysis ◽

Oryza Sativa ◽

Oryza Sativa L ◽

Rice Seed

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Transfer of Arsenic from Groundwater and Paddy Soil to Rice (Oryza sativa L.) Grain: A Micro Level Study in Chandina, Comilla

The Agriculturists ◽

10.3329/agric.v12i2.21734 ◽

2015 ◽

Vol 12 (2) ◽

pp. 74-82 ◽

Cited By ~ 1

Author(s):

Md. Habibur Rahman ◽

Md. Mohashin Farazi ◽

Kohinoor Begum ◽

Md. Serazul Islam

Keyword(s):

Oryza Sativa ◽

Irrigation Water ◽

Agricultural Soil ◽

Oryza Sativa L ◽

Arsenic Concentration ◽

Dry Weight ◽

Permissible Limit ◽

Arsenic Content ◽

Soil Arsenic ◽

Micro Level

Rice (Oryza sativa L.) is one of the major food crops in many countries. As the cultivation of rice requires huge volume of water, long term use of Arsenic contaminated groundwater for irrigation may result in the increase of arsenic concentration in the agricultural soil and eventually accumulation in rice grains. A micro level study was conducted to investigate the transfer of arsenic from irrigation water and soil to rice plants in the arsenic affected 8 unions of Chandina upazilla, Comilla district. The level of arsenic in irrigation water (0.12±0.08 and 0.67±0.07 mg l-1) was much above the WHO permissible limit of 0.01 mg l-1 for drinking water and FAO permissible limit of 0.10 mg l-1 for irrigation water. The total soil arsenic concentrations ranged from 3.21±0.80 to 8.74±2.83 mg kg-1 dry weight of soil, which was below the maximum acceptable limit for agricultural soil of 20.0 mg kg-1 as recommended by the European Community. The accumulation of arsenic in the grain ranged from 0.12±0.04 to 0.58±0.06 mg kg-1 in Boro and 0.16±0.04 to 1.06±0.20 mg kg-1 in T. Aman. Except grain sample (T. Aman) of one union, the grains in both Boro and T. Aman of all unions did not exceed 1.0 mg kg-1 dry weight of arsenic (the permissible limit of arsenic in rice according to WHO recommendation). Thus, till now rice has remained harmless for consumption in the study area. The results clearly showed that the arsenic content in the grains of Boro rice is correlated to the intensity of arsenic contamination of irrigation water and soil. The Agriculturists 2014; 12(2) 74-82

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