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Plant Metallomics and Functional Omics - A System-Wide Perspective (Paperback, 1st ed. 2019)
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Plant Metallomics and Functional Omics - A System-Wide Perspective (Paperback, 1st ed. 2019)
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Major portion of the planet earth is covered by seas and oceans
representing 96.5% of the planet's water, playing a detrimental
role in sustaining the plant including crop diversity and
productivity for human consumption. Water resources contain both
soluble and transition metals, which are easily absorbed by plants
through roots as a first point of contact and subsequently play
important physiological and biological functions in plants.
Transition metals such as copper (Cu), iron (Fe), manganese (Mn)
and zinc (Zn) contribute to the plant productivity by playing key
functional roles in the photosynthesis. In addition, to their major
role in regulating the plant productivity, they also play an
important role by acting as homeostatic regulators in
uni-parentally inherited chloroplasts and maintains the flow of the
electron transfer. It is worthwhile to mention that they play a
critical role as transporters, which acts as electron balancing
units for managing the electrostatic potential across the
membranes. In contrast, some metals such as Cd, As play a
significant role in inducing the stress mechanism and influencing
either directly or in-directly Haber-Weiss reactions either through
the production of the reactive oxygen species (ROS) or through the
membrane damage thus leading to leakage of membrane transporters.
However, besides playing a detrimental role as transporters in
plant system, excessive accumulation of these metals due to the
increasing contamination in the marginal soil and water are posing
important threats to the plant system. Realizing the toxic effects
of the metals, several physiological evidences have been laid for
the credence of the metal toxicity and their concurrent effect on
plant productivity. Increasing effects of the metals as toxicants
can have three adverse effects on the populations: population can
move, persist via local adaptation or phenotypic plasticity, or
die. Next generation sequencing studies have revolutionized our
abilities to detect the changes in expression profiles across an
array of genes, which can in-turn help to develop early markers of
metal induced stress. Plant Metallomics and Functional Omics: A
System-Wide Perspective focuses on the applications of the system
wide understanding of the biological and functional interplay
occurring at the juncture of the metalloid induced stress and
toxicity. The main goal of this book is to familiarize the readers
with the most up-to-date information on metal-induced physiological
changes in plant species.
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