Evidence on the Indispensable Nature of Zinc and Boron for Higher Green Plants

blocked Zn-induced ERKl/2 and PKB phosphorylation, but AG1478, an inhibitor for EGFR was without effect. In CHO cells overexpressing tyrosine kinase deficient IR (CHO-1018), Zn was still able to induce the phosphorylation ERK1/2 and PKB/Akt, whereas insulin-induced ERK1/2 and PKB/Akt phosphorylation was abolished in these cells.Moreover, Zn had no effect on the tyrosine phosphorylation of IR-p-subunit and IRS-l in CHO-IR cells. Furthermore, in IGF-IR knockout cells, both IGF-l and Zn were unable to stimulate the phosphorylation ofERK1/2 and PKB. Taken together, these data suggest that Zn-induced ERK1/2 and PKB/Akt phosphorylation is independent of IR-or EGFR-PTK, but requires IGF-IR-PTK.

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“…ft took almost sixt Y years after that discovery to prove that Zn was also essential for the growth of higher fonns of plants (62)(63)(64) …”

Section: -Zinc In Biological Systemsmentioning

confidence: 99%

Insulino-mimetic and anti-diabetic effects of zinc

Vardatsikos

Pandey

Srivastava

2013

Journal of Inorganic Biochemistry

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“…The essentiality of Zn in low concentration for root and stem elongation was shown in previous researches (Mazé, 1915;Sommer & Lipman, 1926;Skoog, 1940). But at high concentrations, it is toxic for plants like cadmium, lead and copper.…”

mentioning

confidence: 99%

Comparative Genotoxicity Analysis of Heavy Metal Contamination in Higher Plants

Aras¹,

Aydin²,

Körpe³

et al. 2012

Ecotoxicology

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“…The dead terminal shoot is clearly seen in figure 3. Attention is also directed to the swollen condition FIG SOMMER (13) found in her work with monocotyledonous plants such as corn, abnormal tillering as well as withering of the growing points of the tops. This interesting growth formation is no doubt related in some way to the peculiar growth forms (see figure 4) produced in the tomato after the growing points of the stems died.…”

Section: Ca(n03)2 *---------------------------------mentioning

confidence: 99%

The Influence of Boron on the Chemical Composition and Growth of the Tomato Plant

Johnston

Dore²

1929

Plant Physiol.

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IntroductionAn investigation was undertaken by one of the writers for the purpose of determining the minimum potassium requirements of the tomato plant. It was planned to use water cultures in these studies. Although the solutions contained the so-called essential elements for normal plant growth it was soon discovered that the plants failed to grow. Since attention had been recently called to the importance of boron and manganese it was thought that a possible solution to the problem lay in adding these elements to the culture medium and a special experiment was conducted to test their effects on the growth of the tomato. Manganese (1.0 ppm.) was added to the nutrient solution as manganese sulphate and boron (0.55 ppm.) as boric acid. The four groups noted in table I consisted of nine cultures, each containing a single plant in a two-quart Mason jar.

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Evidence on the Indispensable Nature of Zinc and Boron for Higher Green Plants

Cited by 217 publications

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Insulino-mimetic and anti-diabetic effects of zinc

Insulino-mimetic and anti-diabetic effects of zinc

Comparative Genotoxicity Analysis of Heavy Metal Contamination in Higher Plants

The Influence of Boron on the Chemical Composition and Growth of the Tomato Plant

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