Zinc nutrition and levels of endogenous lndole‐3‐acetic acid in radish shoots

Hossain, Belayet; Hirata, Norihiro; Nagatomo, Yasuhiro; Suiko, Masahito; Takaki, Hiroshi

doi:10.1080/01904169809365470

Cited by 8 publications

(8 citation statements)

References 18 publications

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“…Synchronization of visual Zn deficiency symptoms and stem height shortening in control and low Zn foliar spray concentrations (0.03% and 0.07%) supported the physiological mediating function of Zn in the metabolism of growth regulators as indole 3 acetic acid and gibberellic acid (Cakmak, Marshner, & Bangerth, 1988;Balal et al, 1998). The leaf area was also enhanced by Zn foliar spray; a result which was reported by Chaab, Savaghebi, and Motesharezadeh (2011) on maize due to Zn soil supply.…”

Section: Plant Growth Silage Yield and Shoot Dry Matter Partitioningsupporting

confidence: 65%

Corn Silage (Zea mays L.) Response to Zinc Foliar Spray Concentration When Grown on Sandy Soil

Drissi¹,

Houssa²,

Bamouh³

et al. 2015

JAS

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The objective of this study is to identify an adequate zinc (Zn) foliar spray concentration which corrects Zn deficiency without disrupting other plant mineral contents, enhances plant growth, and thereby corn silage yield when grown on sandy soil. A field experiment was conducted using five Zn foliar spray concentrations (w/v): 0.03%, 0.07%, 0.10%, 0.14% and 0.18%. Zn sulfate (ZnSO 4 . 7H 2 O) was used as a source of Zn. Zn foliar application was realized at two growth stages (6-7 and 9-10 leaf stages). A treatment without Zn foliar spray was maintained as control. The results showed a quadratic response of corn silage towards Zn foliar spray concentrations, in which 0.09% was the optimum value for overcoming Zn deficiency. Such level increased shoot Zn concentration at harvest from 15 mg kg -1 to 21.8 mg kg -1 , didn't decrease plant mineral content below critical levels, enhanced plant growth and raised silage yield by 49.4% compared to control. On the other hand, Zn foliar spray concentration up to 0.10% induced visible leaf damage, growth inhibition and a decrease of 26% in silage yield compared to Zn foliar applications at 0.09%.

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Section: Plant Growth Silage Yield and Shoot Dry Matter Partitioningsupporting

confidence: 65%

Corn Silage (Zea mays L.) Response to Zinc Foliar Spray Concentration When Grown on Sandy Soil

Drissi¹,

Houssa²,

Bamouh³

et al. 2015

JAS

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“…A normal level of IAA was found in zinc-deficient radishes (Raphanus sativus cv. Akamaru-Hatsukadaikon) by means of thin layer chromatography, gas-liquid chromatography, and gas chromatography-mass spectrometry (Hossain et al 1998). These reports suggest the possibility that zinc not only participates in auxin biosynthesis, but also plays multiple roles in plant development induced by auxin.…”

Section: Introductionmentioning

confidence: 97%

Methylmalonate-semialdehyde dehydrogenase is induced in auxin-stimulated and zinc-stimulated root formation in rice

et al. 2004

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Proteins induced in rice by auxin and zinc were determined by proteome analysis. Cultured suspension cells of rice were treated with 2,4-dichlorophenoxyacetic acid and ZnSO4 and then proteins were separated by two-dimensional polyacrylamide gel electrophoresis; seven proteins were found to be induced by auxin and zinc. Of these seven, methylmalonate-semialdehyde dehydrogenase (MMSDH) was elevated by treatment with auxin alone. MMSDH was detected in cultured suspension cells, root and leaf sheath, but not in leaf blades. MMSDH responded to auxin and gibberellin, but did not respond to brassinolide and cytokinin. Furthermore, the amount of MMSDH in slr1, a constitutive gibberellin response mutant, was 2-fold that of wild type. MMSDH mRNA and protein were stimulated in root formation induced by auxin and/or zinc over a 4-week period. These results suggest that MMSDH may be necessary for root formation in rice induced by auxin and/or zinc.

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“…Using an immunoassay technique, Cakmak et al (1989) detected decreased levels of IAA, and increased contents of tryptophan and other amino acids in zinc‐deficient Phaseous vulgaris L. In contrast, a normal level of IAA was found in zinc‐deficient radish ( Raphanus sativus cv. Akamaru‐Hatsukadaikon) by means of thin layer chromatography, gas‐liquid chromatography and gas chromatography/mass spectrometry (Domingo et al 1992,Hossain et al 1998). In roots, auxin is transported acropetally towards the tip where it is present in high concentrations.…”

Section: Introductionmentioning

confidence: 99%

Characterization of NADPH‐dependent oxidoreductase induced by auxin in rice

Oguchi

Tanaka

Komatsu

et al. 2004

Physiologia Plantarum

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An NADPH-dependent oxidoreductase (NADPH-DO) with an isoelectric point of 5.2 and a molecular mass of 35 kDa was isolated from suspension-cultured rice cells. NADPH-DO was inducible by auxin and gibberellin. NADPH-DO mRNA was expressed in roots and leaf sheaths of rice seedlings, but not in leaf blades. The levels of NADPH-DO mRNA and protein in suspension-cultured cells were increased by auxin; they were further raised by the application of zinc. In contrast, NADPH-DO mRNA and protein accumulation in intact roots was stimulated by auxin, but in this case the stimulation was inhibited by zinc. Auxin-induced callus growth and root formation in intact rice plants were further enhanced by zinc. These results indicate that high levels of NADPH-DO are necessary for auxin- and zinc-induced callus formation, and imply that zinc plays a role in the regulation of NADPH-DO induction by auxin.

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Zinc nutrition and levels of endogenous lndole‐3‐acetic acid in radish shoots

Cited by 8 publications

References 18 publications

Corn Silage (Zea mays L.) Response to Zinc Foliar Spray Concentration When Grown on Sandy Soil

Corn Silage (Zea mays L.) Response to Zinc Foliar Spray Concentration When Grown on Sandy Soil

Methylmalonate-semialdehyde dehydrogenase is induced in auxin-stimulated and zinc-stimulated root formation in rice

Characterization of NADPH‐dependent oxidoreductase induced by auxin in rice

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