Photosynthesis and Seed Production under Water‐Deficit Conditions in Transgenic Tobacco Plants That Overexpress an Arabidopsis Ascorbate Peroxidase Gene

Crop Science ◽  
2003 ◽  
Vol 43 (4) ◽  
pp. 1477-1483 ◽  
Author(s):  
Juqiang Yan ◽  
Jing Wang ◽  
David Tissue ◽  
A. Scott Holaday ◽  
Randy Allen ◽  
...  
Keyword(s):  
Transgenic Tobacco ◽  
Water Deficit ◽  
Seed Production ◽  
Ascorbate Peroxidase ◽  
Transgenic Tobacco Plants ◽  
Tobacco Plants ◽  
Peroxidase Gene

scholarly journals Effects of salt stress on proline content, expression of delta-1-pyrroline-5-carboxylate synthetase, and activities of catalase and ascorbate peroxidase in transgenic tobacco plants

2009 ◽  
Vol 46 (2) ◽  
pp. 63-75 ◽  
Author(s):  
Roya Razavizadeh ◽  
Ali Ehsanpour
Keyword(s):  
Salt Stress ◽  
Transgenic Plants ◽  
Transgenic Tobacco ◽  
Expression Pattern ◽  
Ascorbate Peroxidase ◽  
Proline Content ◽  
35S Promoter ◽  
Transgenic Tobacco Plants ◽  
Tobacco Plants ◽  
Moth Bean

Effects of salt stress on proline content, expression of delta-1-pyrroline-5-carboxylate synthetase, and activities of catalase and ascorbate peroxidase in transgenic tobacco plantsIn arid and semiarid regions, soil salinity limits crop production. Proline accumulation in transgenic plants results in increased stress tolerance, but the underlying mechanism was unclear. To elucidate it, effects of salt stress on the expression pattern of Δ1-pyrroline-5-carboxylate synthetase (P5CS), proline content, catalase (CAT), and ascorbate peroxidase (APX) activities were analyzed in transgenic tobacco (Nicotiana tabacumcv. Wisconsin). Transgenic tobacco plants containing CaMV 35S promoter and theP5CSgene from moth bean (Vigna aconitifolia), linked to theNPTIIgene, were culturedin vitrowith or without 300 mM NaCl. The expression pattern ofP5CSwas evaluated using semiquantitative RT-PCR (reverse transcription-polymerase chain reaction). Time-course experiments showed an increase in proline content after 4 h of the treatment. The level ofP5CStranscripts was increased significantly in leaves and roots of transgenic plants after 24 and 48 h of treatment. This rise in transcripts was concomitant with the highest increase in proline content. In addition, CAT and APX activities increased under salt stress, and their highest activities were observed after 24 and 48 h of NaCl treatment. These results suggest thatP5CSis an inducible gene regulating the activities of CAT and APX and the accumulation of proline in plants subjected to salt stress.

Proline accumulation induces the production of total phenolics in transgenic tobacco plants under water deficit without increasing the G6PDH activity

2018 ◽  
Vol 30 (3) ◽  
pp. 251-260 ◽  
Author(s):  
Fláive Loyze Baldassarini Silva ◽  
Luiz Gonzaga Esteves Vieira ◽  
Alessandra Ferreira Ribas ◽  
Adriana Lima Moro ◽  
Daniel Moreira Neris ◽  
...  
Keyword(s):  
Transgenic Tobacco ◽  
Water Deficit ◽  
Total Phenolics ◽  
Proline Accumulation ◽  
Transgenic Tobacco Plants ◽  
G6pdh Activity ◽  
Tobacco Plants

scholarly journals Increased Stress Tolerance of Transgenic Tobacco Plants that Overexpress Ascorbate Peroxidase in Chloroplasts

10.1038/70419 ◽  
1999 ◽  
Vol 17 (S5) ◽  
pp. 47-47 ◽  
Author(s):  
Hironori Kaminaka ◽  
Shigeto Morita ◽  
Toru Suzuki ◽  
Hidefumi Yokoyama ◽  
Akihiro Kubo ◽  
...  
Keyword(s):  
Stress Tolerance ◽  
Transgenic Tobacco ◽  
Ascorbate Peroxidase ◽  
Transgenic Tobacco Plants ◽  
Tobacco Plants

scholarly journals Overexpression of the Wheat Expansin Gene TaEXPA2 Improved Seed Production and Drought Tolerance in Transgenic Tobacco Plants

PLoS ONE ◽  
2016 ◽  
Vol 11 (4) ◽  
pp. e0153494 ◽  
Author(s):  
Yanhui Chen ◽  
Yangyang Han ◽  
Meng Zhang ◽  
Shan Zhou ◽  
Xiangzhu Kong ◽  
...  
Keyword(s):  
Drought Tolerance ◽  
Transgenic Tobacco ◽  
Seed Production ◽  
Transgenic Tobacco Plants ◽  
Tobacco Plants ◽  
Expansin Gene
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