Crop Improvement Through Plant Tissue Culture - Crop Improvement: New Approaches and Modern Techniques - page 138

Table 3.2 (continued )
Gene and gene product Plant Resistance to Reference

Cnb1 (Calcineurin) Tobacco Salt Pardo et al ( 1998 )

DnaK (Heat shock proteins) Tobacco Salt Sugino et al. ( 1999 )

AtHsp 17.6A (Small heat
shock protein)

Arabidopsis Drought and salt Sun et al ( 2001 )

AtGSK1 Arabidopsis Drought and Salt Piao et al ( 2001 )

AtNDPK2 (Nucleotide
diphosphate kinase)

Arabidopsis Salt, cold, methyl

viologen

Moon et al. ( 2002 )

AtNHX1 (Vacuolar Na + /H +
antiporter)

Tomato Salt Zhang and Blumwald

( 2001 )

AtNHX1 (Vacuolar Na + /H +
antiporter)

Mustard Salt Zhang et al. ( 2001 )

AtNHX1 (Vacuolar Na + /H +
antiporter)

Rice Salt Ohta et al. ( 2002 )

SOS1 (Plasma membrane
Na + /H + antiporter)

Arabidopsis Salt Shi et al. ( 2003 )

AVP1 (K + /Na + transport
regulation)

Arabidopsis Drought and salt Gaxiola et al. ( 2001 )

CaXTH3 (Xyloglucan
endotransglucosylase)

Arabidopsis Drought and salt Cho et al. ( 2006 )

ZmOPR1 (12-Oxo-Phytodie-
noic acid reductases)

Arabidopsis Osmotic and salt

stress

Gu et al. ( 2008 )

SPCP2 (papain-like cysteine
protease)

Arabidopsis Salt and drought Chen et al. ( 2010 )

W6 (Ethylene responsive fac-
tor gene)

Tobacco Salt tolerance Lu et al. ( 2010 )

TSRF1 (Ethylene responsive
factor)

Rice Drought Quan et al. ( 2010 )

TERF2/LeERF2 (Ethylene
responsive factor)

Tomato
tobacco

Freezing Zhang and Huang

( 2010 )

StPUB17 (UND/PUB/ARM)
repeat type gene

Potato Salt tolerance Ni et al. ( 2010 )

developing technology which holds promise of restructuring agricultural, horticul-
tural and forestry practices. Cultured explants undergo frequent genetic changes
which are expressed at biochemical or molecular level. The genetic variability ex-
pressed in regenerated plants can be transmitted to the progeny through sexual or
vegetative propagation. Rapid advances in plant genetic engineering have made it
possible to improve endogenous metabolic pathways and/or bestow foreign func-
tions. Utilization of plants, however, is disturbed by environmental stresses such as
drought, high salinity, low temperature, and pathogens, which either directly cause
cell death or inhibit growth by disarranging the intracellular water balance. The
application of tissue culture technology as a central tool or as an adjunct to other
methods, including recombinant DNA techniques, is at the vanguard in plant modi-
fication and improvement for agriculture, horticulture and forestry.