Toxic metal accumulation, responses to exposure and mechanisms of tolerance in plants

S Clemens - Biochimie, 2006 - Elsevier
Over the past 200 years emissions of toxic heavy metals have risen tremendously and
significantly exceed those from natural sources for practically all metals. Uptake and …

[HTML][HTML] Molecular aspects of Cu, Fe and Zn homeostasis in plants

N Grotz, ML Guerinot - Biochimica et Biophysica Acta (BBA)-Molecular Cell …, 2006 - Elsevier
Proper metal transport and homeostasis are critical for the growth and development of
plants. In order to potentially fortify plants pre-harvest with essential metals in aid of human …

Plant responses to potassium deficiencies: a role for potassium transport proteins

MK Ashley, M Grant, A Grabov - Journal of experimental botany, 2006 - academic.oup.com
The availability of potassium to the plant is highly variable, due to complex soil dynamics,
which are strongly influenced by root–soil interactions. A low plant potassium status triggers …

Put the metal to the petal: metal uptake and transport throughout plants

EP Colangelo, ML Guerinot - Current opinion in plant biology, 2006 - Elsevier
Compared to other organisms, plants have expanded families of transporters that are
involved in the uptake and efflux of metals. Fortunately, in many cases, the examination of …

Zinc-dependent global transcriptional control, transcriptional deregulation, and higher gene copy number for genes in metal homeostasis of the hyperaccumulator …

IN Talke, M Hanikenne, U Krämer - Plant physiology, 2006 - academic.oup.com
The metal hyperaccumulator Arabidopsis halleri exhibits naturally selected zinc (Zn) and
cadmium (Cd) hypertolerance and accumulates extraordinarily high Zn concentrations in its …

Alkali cation exchangers: roles in cellular homeostasis and stress tolerance

JM Pardo, B Cubero, EO Leidi… - Journal of experimental …, 2006 - academic.oup.com
Uptake and translocation of cations play essential roles in plant nutrition, signal
transduction, growth, and development. Among them, potassium (K+) and sodium (Na+) …

A Ca2+ signaling pathway regulates a K+ channel for low-K response in Arabidopsis

L Li, BG Kim, YH Cheong… - Proceedings of the …, 2006 - National Acad Sciences
Nutrient sensing is critical for plant adaptation to the environment. Because of extensive
farming and erosion, low content of mineral nutrients such as potassium (K+) in soils …

High-affinity potassium and sodium transport systems in plants

A Rodríguez-Navarro, F Rubio - Journal of experimental botany, 2006 - academic.oup.com
All living cells have an absolute requirement for K+, which must be taken up from the
external medium. In contrast to marine organisms, which live in a medium with an …

Root development and nutrient uptake

H Wang, Y Inukai, A Yamauchi - Critical reviews in plant sciences, 2006 - Taylor & Francis
Root system formation proceeds in close coordination with shoot growth. Accordingly, root
growth and its functions are regulated tightly by the shoot through materials cycling between …

Arabidopsis thaliana Cyclic Nucleotide Gated Channel 3 forms a non-selective ion transporter involved in germination and cation transport

A Gobert, G Park, A Amtmann, D Sanders… - Journal of …, 2006 - academic.oup.com
The Arabidopsis thaliana genome contains 20 cyclic nucleotide gated channel (CNGC)
genes encoding putative non-selective ion channels. Classical and reverse genetic …