Copper and cobalt accumulation in plants: a critical

Sep 14, 2016· This review synthesizes contemporary understanding of copper–cobalt (Cu–Co) tolerance and accumulation in plants. Accumulation of foliar Cu and Co to > 300 μg g −1 is exceptionally rare globally, and known principally from the Copperbelt of Central Africa. Cobalt accumulation is also observed in a limited number of nickel (Ni) hyperaccumulator plants occurring on ultramafic soils

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Nitric oxide mediates iron‐induced ferritin accumulation

May 30, 2002· NO, by acting downstream of iron in the induction of ferritin transcript accumulation is therefore a key signaling molecule for regulation of iron homeostasis in plants. Introduction Iron may bind to heme groups, iron‐sulfur clusters, or directly associate with proteins and is essential for many cellular functions.

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Exogenous Melatonin Improves Plant Iron Deficiency

Melatonin has recently been demonstrated to play important roles in the regulation of plant growth, development, and abiotic and biotic stress responses. However, the possible involvement of melatonin in Fe deficiency responses and the underlying mechanisms remained elusive in Arabidopsis thaliana. In this study, Fe deficiency quickly induced melatonin synthesis in Arabidopsis plants.

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Promotion and Inhibition of Iron Accumulation in Soybean

Efficient plants had little or no effect on the accumulation of iron by inefficient plants. On the other hand, iron accumulation in efficient plants was less in mixed culture than when grown alone (Fig. 1). The maximum effect was observed with 4 plants of opposite efficiency, and

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Managing Iron Deficiency Chlorosis in Soybean

This increases pH in leaf sap and decreases the rate of reduction of Fe III to Fe II that is necessary for leaf cells to have usable Fe. Iron in leaflets can be greater in the chlorotic plants than non-chlorotic plants because of an accumulation of iron in the leaves and the plant's inability to reduce the iron III into an available form.

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Iron deficiency - IRRI Rice Knowledge Bank

Iron (Fe) deficiency affects photosynthesis and leads to reduced yield and dry matter production. Why and where it occurs. Fe deficiency is relatively rare, especially in irrigated rice systems. Soils particularly prone to Fe deficiency include: neutral, calcareous, and alkaline upland soils

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Role of Mineral Elements in Plants - Biology Discussion

Role of Mineral Elements in Plants. Furthermore, the specific ions in contact with the cell also influence the mechanism of accumulation of ions in plant cells. Ions of many mineral elements have a toxic effect on protoplasm, causing its disintegration even in very dilute concentrations. Certain minerals like iron, copper and zinc take

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Accumulation of Pb, Zn, Cu and Fe in plants and

Accumulation of Pb, Zn, Cu and Fe in plants and hyperaccumulator choice in Galali iron mine area, Iran Mahtab Asgari Nematian 1*, Fatemeh Kazemeini 2 1. Laboratory of Plant Cell Biology, Department of Biology, Payame-Noor University, Hamedan Branch, Po Bo19395-3697 Tehran, Iran 2.

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Directed plant cell-wall accumulation of iron: embedding

Directed plant cell-wall accumulation of iron: embedding co-catalyst for efficient biomass conversion Biotechnology for Biofuels, Oct 2016 Angus S. Murphy, Bryon S. Donohoe, Chien-Yuan Lin, Haibing Yang, Hui Wei, Joseph E. Jakes, Maureen C. McCann, Melvin P. Tucker, Michael E. Himmel, Peter N. Ciesielski, et al.

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ROS Are Good: Trends in Plant Science

Reactive oxygen species (ROS) are thought to play a dual role in plant biology. They are required for many important signaling reactions, but are also toxic byproducts of aerobic metabolism. Recent studies revealed that ROS are necessary for the progression of several basic biological processes including cellular proliferation and differentiation.

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Ion Absorption in Plants– Passive and Active Uptake

Ion accumulation is inhibited when the metabolic activity of the plant is inhibited by low temperatures, low oxygen tension, metabolic inhibitors, and so on. Many workers like Steward (1932), Hopkins (1956) and others have found a parallel curve for salt accumulation and

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SL353/SS555: Iron (Fe) Nutrition of Plants

Iron is a required plant nutrient for normal plant growth and reproduction. Iron is required in small amounts and is called a "micronutrient." Iron is a challenging plant nutrient to work with because of its reactions in the soil and its plant physiology. Iron is typically highly insoluble in the soil used for most plant production systems.

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8 Key Signs of Cannabis Plant Deficiencies | Seedsman Blog

Aug 23, 2017· Too much P can lead to iron deficiency. Purpling: accumulation of anthocyanin pigments; causes an overall dark green color with a purple, red, or blue tint, and is the common sign of phosphate deficiency. Some plant species and varieties respond to phosphate deficiency by yellowing instead of purpling. Purpling is natural to some healthy

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How to Water Plants with Alkaline Water or Tap Water

Dec 09, 2018· How to Water Plants with Alkaline Water or Tap Water. Tap water can be a problem for plants. It is frequently alkaline -- "hard" or high in calcium --

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Iron accumulation and enhanced growth in transgenic

IRP is a carrier and metallo protein, which could enhance iron accumulation and plant growth (Goto et al., 2000). In addition, Serine/arginine rich splicing factor were also found to be related to

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Communications in Soil Science and Plant Analysis

The influence of sulfur (S) (0, 30, 60, and 120 mg S kg −1 soil) supply on iron (Fe) accumulation in rice was investigated in a soil (soil/sand = 4:1) culture experiment. Results showed that Fe concentration in brown rice stem/leaf increased initially and then decreased with the increase in S concentration from 30 to 120 mg kg −1.The greatest Fe concentration was achieved at 60 mg S kg

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Plant responses to sulphur deficiency and the genetic

Plant responses to sulphur deficiency and the genetic manipulation of sulphate transporters to improve S‐utilization efficiency the accumulation of greater reserves of S and improved mechanisms for the remobilization of these reserves are required. It is an inability to over‐accumulate S and subsequently, effectively remobilize S

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IRON ACCUMULATION IN TRANSGENIC PLANTS EXPRESSING

The iron content of transgenic plants was higher than that of control plants. The highest iron content of leaves from transformed tobacco and lettuce, in which the exogenous ferritin gene was expressed constitutively, was approximately 30% and 70% higher than leaves from control plant, respectively. IRON ACCUMULATION IN TRANSGENIC PLANTS

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Role of the iron transporter OsNRAMP1 in cadmium uptake

staple for Asians, the accumulation of Cd in rice grains is an increasingly significant agricultural issue. Although the mecha-nism underlying the uptake and translo-cation of Cd in plants is not completely understood, some iron (Fe) transporters reported to take up Cd as well as Fe.1 Fe deficiency in plants induces expression of

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Environmental Factor - December 2012: Guerinot discusses

Iron accumulation in plants and nutrition. Guerinot's group analyzes plant iron content to search for mutants that can more readily absorb iron, and to determine the genes associated with iron uptake.

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