Comparison of Agronomic and Physiological Traits of Rice Genotypes Differing in Cadmium-Tolerance

Huang, Dong-Fen; Xi, Ling-Lin; Yang, Li-Nian; Wang, Zhiqin

doi:10.1016/s1875-2780(08)60030-9

Cited by 6 publications

(5 citation statements)

References 22 publications

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“…Application of RSC did not increase plant biomass from pre-tillering to booting and there was a significant decline in heavy metal concentrations in the soil solution. Huang et al (2008) reported that the sensitive stages when heavy metals affect the growth of rice plants are the tillering and booting stages. Application of RSC can lower heavy metal concentrations in the soil solution at these sensitive stages and this may increase the biomass of rice plants and increase the grain yield.…”

Section: Discussionmentioning

confidence: 99%

Influence of Rapeseed Cake on Heavy Metal Uptake by a Subsequent Rice Crop After Phytoextraction UsingSedum plumbizincicola

Zhou¹,

Wu²,

Zhu³

et al. 2014

International Journal of Phytoremediation

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A glasshouse pot experiment was conducted to study the effects of phytoextraction by Sedum plumbizincicola and application of rapeseed cake (RSC) on heavy metal accumulation by a subsequent rice (Oryza sativa L.) crop in a contaminated paddy soil collected from east China. After phytoextraction by S. plumbizincicola the soil and brown rice Cd concentrations effectively declined. After phytoextraction, RSC application reduced brown rice Cd concentrations in the subsequent rice crop to 0.23-0.28 mg kg −1 , almost down to the standard limit (0.2 mg kg −1 ). After phytoextraction and then application of RSC, the soil solution pH, dissolved organic carbon (DOC) and dissolved organic nitrogen (DON) concentrations increased during early stages of rice growth resulting directly and indirectly in lowering the bioavailability of the heavy metals. Thus the grain yield of the subsequent rice crop increased and the heavy metals in the brown rice declined significantly. In this contaminated acid soil, growing the hyperaccumulator S. plumbizincicola and rice in rotation together with RSC application may therefore be regarded as a viable strategy for safe grain production and bioremediation.

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Section: Discussionmentioning

confidence: 99%

Influence of Rapeseed Cake on Heavy Metal Uptake by a Subsequent Rice Crop After Phytoextraction UsingSedum plumbizincicola

Zhou¹,

Wu²,

Zhu³

et al. 2014

International Journal of Phytoremediation

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“…Stunted growth, perturbation of biological membrane particularly cell membrane, denaturation of enzymes and proteins are the primary effects of Cd toxicity in plants . In rice, a substantial reduction in grain yield (38.3–47.1%) and dry matter weight (40.2–45.1%) has been observed under Cd stress as compared to control . In Arachis hypogaea plants, Cd toxicity inhibited the net photosynthetic rate due to decreased stomatal conductance and photosynthetic pigment contents .…”

Section: Introductionmentioning

confidence: 99%

Morpho‐Physiological Growth and Yield Responses of Two Contrasting Maize Cultivars to Cadmium Exposure

Anjum

Tanveer

Hussain

et al. 2015

CLEAN Soil Air Water

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Increasing soil contamination by cadmium (Cd) has emerged one of the gravest threats to environmental sustainability and global food security. Maize, a major staple food, is supposed as the conspicuous source for intake of Cd by human beings. The present study investigated the morpho‐physiological growth and yield responses of two contrasting maize cultivars (Run Nong 35 and Wan Dan 13) to different Cd toxicity levels (0, 75, 150, 225, 300, and 375 μM). A considerable reduction in the growth and yield performance of both maize cultivars were noticed upon exposure to Cd stress and such a reduction governed by Cd was concentration dependent. Therefore, an increase in Cd concentration resulted in a proportional decrease in all growth (plant height, number of leaves per plant, leaf area, and ear length) and yield attributes (number of kernels per row, number of kernels per cob, and 100‐kernel weight). Osmolytes accumulation (soluble proteins, soluble sugar, and proline contents) also varied in the response to different Cd toxicity levels and maximum values for these attributes were recorded at 375 μM Cd in both cultivars. Furthermore, pronounced reduction in gas exchange attributes (photosynthesis, stomatal conductance, transpiration rate, and water use efficiency), relative water contents and chlorophyll contents were observed in Cd‐stressed plants. Cultivar variations were also apparent and Wan Dan 13 outperformed the Run Nong 35 for all studied attributes. Wan Dan 13 appeared a promising maize cultivar manifesting Cd tolerance that was related to higher osmolytes accumulation and better photosynthetic activity.

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“…Lanthanum (La) shoot contents exceeding the toxicity value result in a decline in plant growth and chlorophyll a/b, while peroxidase activity, cell membrane permeability, and proline content in the leaves increase [ 34 , 35 , 36 , 37 ]. Tables S1 and S2 report more effects of TMs on the apparent indexes and body composition of rice [ 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 ].…”

Section: Effects Of Tms On Ricementioning

confidence: 99%

“…The regularity effect of TMs on an enzyme is a function of the TM type. For example, Pb, Hg, Cd, and Zn can decrease the superoxide dismutase activity of rice [ 23 , 43 , 45 , 46 ], while the opposite has been reported for Cd and Pb [ 44 , 47 ]. Peroxidase is more sensitive to Pb and Cd stress than superoxide dismutase [ 71 ].…”

Section: Effects Of Tms On Ricementioning

confidence: 99%

Toxic Metals in a Paddy Field System: A Review

Duan¹,

Li²,

Zhang³

et al. 2022

Toxics

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The threat of toxic metals to food security and human health has become a high-priority issue in recent decades. As the world’s main food crop source, the safe cultivation of rice has been the focus of much research, particularly the restoration of toxic metals in paddy fields. Therefore, in this paper, we focus on the effects of toxic metals on rice, as well as the removal or repair methods of toxic metals in paddy fields. We also provide a detailed discussion of the sources and monitoring methods of toxic metals pollution, the current toxic metal removal, and remediation methods in paddy fields. Finally, several important research issues related to toxic metals in paddy field systems are proposed for future work. The review has an important guiding role for the future of heavy metal remediation in paddy fields, safe production of rice, green ecological fish culture, and human food security and health.

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Comparison of Agronomic and Physiological Traits of Rice Genotypes Differing in Cadmium-Tolerance

Cited by 6 publications

References 22 publications

Influence of Rapeseed Cake on Heavy Metal Uptake by a Subsequent Rice Crop After Phytoextraction UsingSedum plumbizincicola

Influence of Rapeseed Cake on Heavy Metal Uptake by a Subsequent Rice Crop After Phytoextraction UsingSedum plumbizincicola

Morpho‐Physiological Growth and Yield Responses of Two Contrasting Maize Cultivars to Cadmium Exposure

Toxic Metals in a Paddy Field System: A Review

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