Rhizosphere properties of rice genotypes as influenced by anoxia and availability of zinc and iron

Hajiboland, Roghieh; Beiramzadeh, Naier

doi:10.1590/s0100-204x2008000500009

Cited by 3 publications

(3 citation statements)

References 24 publications

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“…Genotypic differences in grain Zn concentrations were significant in all but severely Zn deficient soil, with genotypic means ranging from 11 to 24 mg kg -1 in a Zn deficient soil and from 34 to 46 mg kg -1 in a high-Zn upland soil (Wissuwa et al 2008). Rhizosphere properties of rice genotypes as affected by anoxia and the availability of zinc and iron (Hajiboland and Beiramzadeh 2008). Fertilization with high quantities of N reduced the concentrations of Al and other elements (Ca, K, Mg, Mn, and P) in young tea shoots and mature leaves (Ruan et al 2006).…”

Section: Discussionmentioning

confidence: 97%

Genotypic variation in element concentrations in brown rice from Yunnan landraces in China

Zeng

Zhang

Wang

et al. 2009

Environ Geochem Health

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The mineral elements present in brown rice play an important physiological role in global human health. We investigated genotypic variation of eight of these elements (P, K, Ca, Mg, Fe, Zn, Cu, and Mn) in 11 different grades of brown rice on the basis of the number and distance coefficients of 282 alleles for 20 simple sequence repeat (SSR) markers. Six-hundred and twenty-eight landraces from the same field in Yunnan Province, one of the largest centers of genetic diversity of rice (Oryza sativa L.) in the world, formed our core collection. The mean concentrations (mg kg(-1)) of the eight elements in brown rice for these landraces were P (3,480) > K (2,540) > Mg (1,480) > Ca (157) > Zn (32.8) > Fe (32.0) > Cu (13.6) > Mn (13.2). Mean P concentrations in brown rice were 6.56 times total soil P, so the grains are important in tissue storage of P, but total soil K is 7.82 times mean K concentrations in brown rice. The concentrations of the eight elements in some grades of brown rice, on the basis of the number and distance coefficients of alleles for 20 SSR markers for the landraces, were significantly different (P < 0.05), and further understanding of the relationship between mineral elements and gene diversity is needed. There was large variation in element concentrations in brown rice, ranging from 2,160 to 5,500 mg P kg(-1), from 1,130 to 3,830 mg K kg(-1), from 61.8 to 488 mg Ca kg(-1), from 864 to 2,020 mg Mg kg(-1), from 0.40 to 147 mg Fe kg(-1), from 15.1 to 124 mg Zn kg(-1), from 0.10 to 59.1 mg Cu kg(-1), and from 6.7 to 26.6 mg Mn kg(-1). Therefore, germplasm evaluations for Ca, Fe, and Zn concentrations in rice grains have detected up to sevenfold genotypic differences, suggesting that selection for high levels of Ca, Fe, and Zn in breeding for mass production is a feasible approach. Increasing the concentrations of Ca, Fe, and Zn in rice grains will help alleviate chronic Ca, Zn, and Fe deficiencies in many areas of the world.

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Section: Discussionmentioning

confidence: 97%

Genotypic variation in element concentrations in brown rice from Yunnan landraces in China

Zeng

Zhang

Wang

et al. 2009

Environ Geochem Health

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“…One mechanism by which plants extrude H + into the rhizosphere for decreasing soil pH under metal-limiting is called proton extrusion (Santi and Schmidt 2009) and thus, it increases Zn solubility (Hajiboland and Beiramzadeh 2008;Palmer and Guerinot 2009). At molecular level, Zn homeostasis in plants is tightly regulated by Zn sensors and metal chelators involved in Zn acquisition and sequestration (Clemens 2001).…”

Section: Introductionmentioning

confidence: 99%

Biochemical and molecular mechanisms associated with Zn deficiency tolerance and signaling in rice (Oryza sativa L.)

Kabir

Hossain

Khatun

et al. 2017

Journal of Plant Interactions

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In this study, zinc (Zn) deficiency caused a significant reduction in growth parameters and tissue Zn concentrations in BRRI 33 (sensitive) but not in Pokkali (tolerant). The increase of proton extrusion in both genotypes under high pH suggests that it gets triggered as a common consequence of reducing pH and solubilization of Zn. Real-time PCR showed pronounced upregulation of OsZIP4, OsDMAS1, OsNAS2 and OsPCS1 in Zn-deficient roots of Pokkali, and to a lesser extent in BRRI 33 only for OsZIP4 and OsPCS1. This suggests that OsDMAS1, OsNAS2 and OsPCS1 functions as secondary consequences leading to higher chelation and uptake of Zn under Zn deficiency in Pokkali. Further, a major increase in CAT, POD, SOD, GR and key metabolites suggests that high antioxidant defense plays a critical role in Zn deficiency tolerance in Pokkali. Further, Pokkali selfgrafts and plants having Pokkali rootstock combined with BRRI 33 scion showed no significant decline in plant height, root dry matter and Zn concentration along with upregulation of Zn transporters (OsZIP4 and OsIRT1) under Zn deficiency, suggesting that signal driving mechanisms for Zn deficiency tolerance mechanisms are generated in the root and Zn-inefficient BRRI 33 is not capable of producing signals or sensing them. ARTICLE HISTORY

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“…Zinc has an important microelement role for the rice crop (Smith & Hamel, 2006) and its deficient may cause significant decrease of the rice yield in flooding lands (Hajiboland & Beiramzadeh, 2008). Zinc foliar application can be substituted by soil application of Zn fertilizer in rice and lead to increase in yield of the rice (Rahman et al, 2008).…”

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confidence: 99%

Response of Rice Yield and Yield Components as well as Grain Quality to Number and Levels of Zinc Foliar Spraying Application

Fergany

2018

Egypt. J. Agron.

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Inroduction Rice (Oryzae sativa, L.) is staple food for more than 60% of world population (Parthipan & Ravi, 2016), it is one of the most important cereal crops in Egypt, it plays an important role in the strategy to overcome food shortage and improve selfsufficiency. It is grown in Egypt in area of 1.216 million faddan with an annual production of about 4.82 million tones and with an average yield of 3.96tons per faddan during the year 2015 growing season (CLAC, 2015). Zinc is one of the most important essential nutrients required for plant growth. It acts as an activator of several enzymes in plants and is directly involved in the biosynthesis of growth substances such as auxin which is involved in plant growth and cell division. Where, zinc represented in all six enzyme classes (oxidoreductases, transferases, hydrolases, lyases, isomerases and ligases) (Auld, 2001). Zinc's function in cell membrane integrity will also be discussed especially for root cells along with its role in suppressing free

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Rhizosphere properties of rice genotypes as influenced by anoxia and availability of zinc and iron

Cited by 3 publications

References 24 publications

Genotypic variation in element concentrations in brown rice from Yunnan landraces in China

Genotypic variation in element concentrations in brown rice from Yunnan landraces in China

Biochemical and molecular mechanisms associated with Zn deficiency tolerance and signaling in rice (Oryza sativa L.)

Response of Rice Yield and Yield Components as well as Grain Quality to Number and Levels of Zinc Foliar Spraying Application

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