Advances in breeding for high grain Zinc in Rice

Swamy, B. P. Mallikarjuna; Rahman, Md. Mosaddequr; Inabangan-Asilo, Mary Ann; Amparado, Amery; Manito, Christine; Chadha-Mohanty, Prabhjit; Reinke, Russell; Slamet‐Loedin, Inez H.

doi:10.1186/s12284-016-0122-5

Cited by 173 publications

(162 citation statements)

References 153 publications

(164 reference statements)

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“…Another study from China found results similar to ours [78]. Rice is the main staple of Asians, but in current high-yielding rice varieties the supply of zinc is poor, as polishing and shelling cause a huge loss of zinc [81,82]. Other reason is possible that discrepancies in levels of trace elements between different countries are partly due to environmental factors, but specific reasons need to be explored further.…”

Section: Discussionsupporting

confidence: 68%

Analysis of Blood Concentrations of Zinc, Germanium, and Lead and Relevant Environmental Factors in a Population Sample from Shandong Province, China

Xu²,

Shao³

et al. 2017

IJERPH

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Trace elements, including zinc (Zn) and germanium (Ge), are essential for health; deficiency or excess levels of trace elements results is harmful. As a result of industrial and agricultural production, Pb widely exists in people’s living environment. It is absorbed mainly through the respiratory and digestive tracts, producing systemic harm. Reference values for a normal, healthy population are necessary for health assessment, prevention and treatment of related diseases, and evaluation of occupational exposures. Reference ranges for the Chinese population have not been established. From March 2009 to February 2010; we collected data and blood samples (n = 1302) from residents aged 6–60 years living in Shandong Province, China. We measured blood concentrations of Zn, Ge, and Pb using inductively coupled plasma mass spectrometry to determine reference ranges. Results were stratified by factors likely to affect the concentrations of these trace elements: sex, use of cosmetics or hair dye, age, alcohol intake, smoking habits, and consumption of fried food. The overall geometric mean (GM) concentrations (95% confidence interval) were 3.14 (3.08–3.20) mg/L for Zn, 19.9 (19.3–20.6) μg/L for Ge, and 24.1 (23.2–25.1) μg/L for Pb. Blood Zn concentrations were higher in women than in men (p < 0.001), while the opposite was found for Pb (p < 0.001) and sex did not influence Ge (p = 0.095). Alcohol use was associated with higher blood concentrations of Zn (p = 0.002), Ge (p = 0.002), and Pb (p = 0.001). The GM concentration of Zn was highest in 20–30-year-olds (p < 0.001), while Pb concentrations were highest in 12–16-year-olds (p < 0.001). Use of hair dye was associated with lower blood concentrations of Ge (p < 0.05). GM blood concentrations of Pb differed significantly between those who consumed fried foods 1–2 times/month (18.7 μg/L), 1–2 times/week (20.9 μg/L), and every day (28.5 μg/L; p < 0.001). Blood Pb concentrations were higher in subjects who used cosmetics (p < 0.05), hair dye (p < 0.05), and who smoked cigarettes (p < 0.001) than in those who did not.

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Section: Discussionsupporting

confidence: 68%

Analysis of Blood Concentrations of Zinc, Germanium, and Lead and Relevant Environmental Factors in a Population Sample from Shandong Province, China

Xu²,

Shao³

et al. 2017

IJERPH

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“…Recent progress in developing molecular markers will help facilitate mainstreaming (Babu et al, 2013, Swamy et al, 2016). As new varieties are developed and released, they should include the biofortified trait as a matter of standard practice.…”

Section: A Future Vision: Institutional Leadership To Drive and Guidementioning

confidence: 99%

Improving nutrition through biofortification: A review of evidence from HarvestPlus, 2003 through 2016

Bouis

Saltzman

2017

Global Food Security

827

606

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Biofortification is a feasible and cost-effective means of delivering micronutrients to populations that may have limited access to diverse diets and other micronutrient interventions. Since 2003, HarvestPlus and its partners have demonstrated that this agriculture-based method of addressing micronutrient deficiency through plant breeding works. More than 20 million people in farm households in developing countries are now growing and consuming biofortified crops. This review summarizes key evidence and discusses delivery experiences, as well as farmer and consumer adoption. Given the strength of the evidence, attention should now shift to an action-oriented agenda for scaling biofortification to improve nutrition globally. To reach one billion people by 2030, there are three key challenges: 1) mainstreaming biofortified traits into public plant breeding programs; 2) building consumer demand; and 3) integrating biofortification into public and private policies, programs, and investments. While many building blocks are in place, institutional leadership is needed to continue to drive towards this ambitious goal.

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“…In general, concentration of Zn such as 500 mgKg -1 may be toxic to crops resulting reduced crop yield [12]. Recent report reveals that in India and Indonesia high zinc rice lines are in advanced stages of evaluation [13,14]. These high zinc line have 18-22 mgKg -1 with acceptable yield potential, grain quality and agronomic traits.…”

Section: Introductionmentioning

confidence: 99%

Physiological impact of Zinc nanoparticle on germination of rice (Oryza sativa L) seed

Upadhyaya¹

2017

J Plant Sci Phytopathol

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Nanoparticles affects growth and development of Plant. Zinc is an important micronutrient that regulates various physiological responses in plant. Application of nanoparticles for modulating plants physiological response is a recent practice. Zinc nanoparticles has been widely used in industry for several decades. However, no signifi cant work had been made on its potential use in agriculture. Understanding physiological effect of Zn NP on rice seed germination could suggest the basis for its prospective application in agriculture to improve plant growth. In the present experiment effect of Zn NP was studied in Kmj-6-1-1 which is a commonly growing rice cultivar of Karimganj district of Assam, India. An exposure to Zn NP (0 mg/L, 5mg/L,10mg/L, 15mg/L, 20mg/L & 50mg/L) caused signifi cant changes in radicle and plumule length , mass ( fresh & dry mass) and seed moisture content in rice. Antioxidant enzymes like guaiacol peroxidase (GPx), catalase (CAT), superoxide dismutase (SOD) and gluthathione reductase (GR) also increased due to ZnNP treatment. This suggest that Zn NP may signifi cantly alters antioxidant metabolism during rice seed germination. In conclusion, Zn NP protected rice plants from ROS damage by improving levels of antioxidant enzyme activities during germination. As a consequence the Zn NP treated seeds, showed better potential for germination. Further, genomic analysis of germinating rice seeds are needed to elucidate the molecular mechanisms by which Zn NP modulates germination process in rice.

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Advances in breeding for high grain Zinc in Rice

Cited by 173 publications

References 153 publications

Analysis of Blood Concentrations of Zinc, Germanium, and Lead and Relevant Environmental Factors in a Population Sample from Shandong Province, China

Analysis of Blood Concentrations of Zinc, Germanium, and Lead and Relevant Environmental Factors in a Population Sample from Shandong Province, China

Improving nutrition through biofortification: A review of evidence from HarvestPlus, 2003 through 2016

Physiological impact of Zinc nanoparticle on germination of rice (Oryza sativa L) seed

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