Table 5.5 (continued)
Mineral
Form
available/
uptake
Transporter and
phytohormones
Comments
References
complex
7. H+/Cu2+
antiporters are
involved in both
influx and efflux of
Cu2+ and other
divalent cations
Fe
Fe
3+ , Fe
2+
(Fe
2+ is more
soluble and
thus readily
taken up)
1. IRT (member of
a ZIP; ZRT-IRT
like ZIP)
2. Uptake via
chelation of Fe
3+
to mugineic acid
(MA) family of
phytosiderophores
(PS-MA)
3. Yellow-stripe
1 (YS1) of the
OPT family are
Fe-PS/MA
transporters
4. Multidrug and
toxin efflux
(MATE) family is
involved in long
distance transport
of Fe through
xylem
5. Fe transport
protein (ITP)
6. Nicotinamine, a
phytosiderophore
(NA) complexes
with Fe2+ (Fe2+NA complex) and
may be involved in
long distance
transport via
phloem
7. VIT1 (Vacuolar
Iron Transporter
1),
8. Nramp (natural
resistance
associated
macrophage
proteins)
1. Ferric reductase
(FRO) converts Fe3
+
to Fe2
+ in soil
2. IRT1 is the major
transporter of Fe
(along with Zn, Mn,
Co, Cd) from soil into
the root
3. 2’-deoxymugineic
acid (DMA), 3pi-hydroxymugineic
acid (epi-HMA), and
3-epihydroxy
2’-deoxymugineic
acid (epi-HDMA) are
the major PS-MA
involved in uptake of
Fe
3+ through the YS1
encoded transporter
4. YS1 also
transportsFe2+-PS/
NA complex
5. MATE transporter
is encoded by FRD
(ferric reductase
defective) gene
6. ITP is involved in
transport through
phloem
7. VIT1 (Vacuolar
Iron Transporter 1), an
Fe2+ functions in
vacuolar Fe storage
8. Nramp play a role
in Fe remobilization
into the cytosol during
Fe-deficiency
Tsai and Schmidt
(2017), Green and
Rogers (2004),
Durrett et al.
(2007), Krüger
et al. (2002), Kim
et al. (2006), Kim
and Guerinot
(2007), and
Kobayashi and
Nishizawa (2012)
(continued)
5 Plant Roots and Mineral Nutrition: An Overview of Molecular Basis of Uptake and. . . 157
Mineral
Form
available/
uptake
Transporter and
phytohormones
Comments
References
complex
7. H+/Cu2+
antiporters are
involved in both
influx and efflux of
Cu2+ and other
divalent cations
Fe
Fe
3+ , Fe
2+
(Fe
2+ is more
soluble and
thus readily
taken up)
1. IRT (member of
a ZIP; ZRT-IRT
like ZIP)
2. Uptake via
chelation of Fe
3+
to mugineic acid
(MA) family of
phytosiderophores
(PS-MA)
3. Yellow-stripe
1 (YS1) of the
OPT family are
Fe-PS/MA
transporters
4. Multidrug and
toxin efflux
(MATE) family is
involved in long
distance transport
of Fe through
xylem
5. Fe transport
protein (ITP)
6. Nicotinamine, a
phytosiderophore
(NA) complexes
with Fe2+ (Fe2+NA complex) and
may be involved in
long distance
transport via
phloem
7. VIT1 (Vacuolar
Iron Transporter
1),
8. Nramp (natural
resistance
associated
macrophage
proteins)
1. Ferric reductase
(FRO) converts Fe3
+
to Fe2
+ in soil
2. IRT1 is the major
transporter of Fe
(along with Zn, Mn,
Co, Cd) from soil into
the root
3. 2’-deoxymugineic
acid (DMA), 3pi-hydroxymugineic
acid (epi-HMA), and
3-epihydroxy
2’-deoxymugineic
acid (epi-HDMA) are
the major PS-MA
involved in uptake of
Fe
3+ through the YS1
encoded transporter
4. YS1 also
transportsFe2+-PS/
NA complex
5. MATE transporter
is encoded by FRD
(ferric reductase
defective) gene
6. ITP is involved in
transport through
phloem
7. VIT1 (Vacuolar
Iron Transporter 1), an
Fe2+ functions in
vacuolar Fe storage
8. Nramp play a role
in Fe remobilization
into the cytosol during
Fe-deficiency
Tsai and Schmidt
(2017), Green and
Rogers (2004),
Durrett et al.
(2007), Krüger
et al. (2002), Kim
et al. (2006), Kim
and Guerinot
(2007), and
Kobayashi and
Nishizawa (2012)
(continued)
5 Plant Roots and Mineral Nutrition: An Overview of Molecular Basis of Uptake and. . . 157