Plant physiology - Chapter 25 Stress Physiology doc

... primary factors distinguishing flooding-sensitive from flooding-tol- erant species. Stress Physiology 617 PP i ADP ATP ATP ADP NADH Sucrose UDP-glucose Glucose-1-P Glucose-6-P Anoxia Pyruvate Lactate Ethanol Acetaldehyde Lactate dehydrogenase Alcohol dehydrogenase TCA ... osmotic stress are sim- ilarly associated with salinity stress. Keep in mind, how- ever, that in addition to acclim...

Ngày tải lên: 16/03/2014, 22:20

... polypeptide chain. ▲ Plant Cells 11 CAG AAA AGG tRNA rRNA mRNA mRNA tRNA tRNA mRNA Translation Transcription Processing Cap Cap Cap Poly-A Poly-A Poly-A Poly-A Cap Poly-A Cap Cap Poly-A Poly-A DNA RNA ... nomenclature for plant A-, B- and D-type cyclins based on sequence organization. Plant Mol. Biol. 32: 1003–1018. Robards, A. W., and Lucas, W. J. (1990) Plasmodesmata. Annu. Rev. Pla...

Ngày tải lên: 20/02/2014, 01:20

... [L] (Leu) Isoleucine [I] (Ile) - COO - COO - COO - COO - COO - COO C CH 2 C - COO - COO - COO - COO - COO - COO - COO - COO - COO - COO - COO - COO - COO - COO - COO H 3 N + H 3 N + H 3 N + + + H 3 N + H 3 N + H 3 N + H 3 N + H 3 N + H 3 N + H 3 N + H 3 N + H 3 N + H 3 N + H 3 N + H 3 N + H 3 N + H 3 N + H 3 N...

Ngày tải lên: 20/02/2014, 01:20

... of the water stress the plant is experiencing (see Chapter 25) . Figure 3.12 also shows representative values for Y w at various stages of water stress. In leaves of well-watered plants, Y w ranges ... expansion Water potential (MPa) Well-watered plants Pure water Plants under mild water stress Plants in arid, desert climates –1–0 –2 –3 –4 FIGURE 3.12 Water potential of plants under...

Ngày tải lên: 20/02/2014, 01:20

... may influence the boundary layer, they are not char- acteristics that can be altered on an hour-to-hour or even day-to-day basis. For short-term regulation, control of stomatal apertures by the ... transpiration ratio for C 4 plants is about 250 . Desert- adapted plants with CAM (crassulacean acid metabolism) photosynthesis, in which CO 2 is initially fixed into four-car- bon organic acids a...

Ngày tải lên: 20/02/2014, 01:20

... hypersensitive to UV-B irradiation. Plant Cell 5: 171–179. Lichtenthaler, H. K. (1999) The 1-deoxy-D-xylulose-5-phosphate pathway of isoprenoid biosynthesis in plants. Annu. Rev. Plant Physiol. Plant Mol. ... in plant cells. Annu. Rev. Plant Physiol. Plant Mol. Biol. 46: 189–214. Bradley, D. J., Kjellbom, P., and Lamb, C. J. (1992) Elicitor- and wound-induced oxidative cross-link...

Ngày tải lên: 07/03/2014, 20:20

... auxin turnover and distri- bution within the plant. The Principal Auxin in Higher Plants Is Indole-3-Acetic Acid In the mid-1930s it was determined that auxin is indole- 3- acetic acid (IAA). Several ... (F) Wild-type alf-1 The first plant hormone we will consider is auxin. Auxin deserves pride of place in any discussion of plant hor- mones because it was the first growth hormone to...

Ngày tải lên: 16/03/2014, 22:20

... light-grown plants would contain less GA 1 than dark-grown plants. However, light-grown plants turned out to contain more GA 1 than dark-grown plants—indicating that de-etiolation is a com- plex ... indole-3-acetic acid, West- ern plant scientists tried to ascribe the regulation of all developmental phenomena in plants to auxin. However, as we will see in this and sub- sequent chapters, p...

Ngày tải lên: 16/03/2014, 22:20

... auxin. The principal cytokinin of higher plants—zeatin, or trans- 6-( 4-hydroxy-3-methylbut-2-eny- lamino)purine—is also present in plants as a riboside or ribotide and as glycosides. These forms ... isolated from many plant and bac- CH 2 OH N N H N CC H N HN CH 3 CH 2 OH CH 2 N N H N CC H N HN CH 3 CH 2 trans-Zeatin 6-( 4-Hydroxy-3-methylbut-2-enylamino)purine cis-Zeatin N C C O C C...

Ngày tải lên: 16/03/2014, 22:20

... soil, plants encounter salt stress. Whereas many plants are affected adversely by the presence of rel- atively low levels of salt, other plants can survive high lev- els (salt-tolerant plants) ... nitrogen-fixing microorganisms. Thus cobalt deficiency blocks the devel- opment and function of nitrogen-fixing nodules. Nonethe- less, plants that do not fix nitrogen, as well as nitrogen-fix- ing...

Ngày tải lên: 20/02/2014, 01:20