Books:

Nobel, P.S. (1999) Physicochemical and Environmental Plant Physiology, 2nd. Edition. Academic Press.

Nobel, P.S., Editor (2002) Cacti: Biology and Uses. University of California Press.

Research articles:

310.- Pimienta, E., Hernandez, G., Domingues, A., and Nobel, P.S. (1998) Growth and development of the arborescent cactus Stenocereus queretaroensis in a subtropical semiarid environment, including the effects of gibberellic acid. Tree Physiol. 18:59-64.

311.- Nobel, P.S., and Castañeda, M. (1998) Seasonal, light, and temperature influences on organ initiation for unrooted cladodes of the prickly pear cactus Opuntia ficus-indica. J. Amer. Soc. Hort. Sci. 123:47-51.

312.- Wang, N., and Nobel, P.S. (1998) Phloem transport of fructans in the Crassulacean acid metabolism species Agave deserti. Plant Physiol. 116:709-714.

313.- Dubrovsky, J.G., North, G.B., and Nobel, P.S. (1998) Root growth, developmental changes in the apex, and hydraulic conductivity for Opuntia ficus-indica during drought. New Phytol. 138:75-82.

314.- Raveh, E., Wang, N., and Nobel, P.S. (1998) Gas exchange and metabolite fluctuations in green and yellow bands of variegated leaves of the monocotyledonous CAM species Agave americana. Physiol. Plant. 103:99-106.

315.- Nobel, P.S., Zhang, H., Sharifi, R., Castañeda, M., and Greenhouse, B. (1998) Leaf expansion, net CO2 uptake, Rubisco activity, and efficiency of long-term biomass gain for the common desert subshrub Encelia farinosa. Photosyn. Res. 56:67-73.

316.- Nobel, P.S., Castañeda, M., North, G., Pimienta-Barrios, E., and Ruiz, A. (1998) Temperature influences on leaf CO2 exchange, cell viability, and cultivation range for Agave tequilana. J. Arid Environ. 39:1-9.

317.- North, G.B., and Nobel, P.S. (1998) Water movement and structural plasticity along roots of a desert monocot during and after prolonged drought. Plant Cell Environ. 21:705-713.

318.- Wang, N., Zhang, H., and Nobel, P.S. (1998) Carbon flow and carbohydrate metabolism during sink-to-source transition for developing cladodes of Opuntia ficus- indica. J. Exp. Bot. 49: 1835-1843.

319.- Drennan, P., and Nobel, P.S. (1998) Root growth dependence on soil temperature for Opuntia ficus-indica: Influences of air temperature and a doubled CO2 concentration. Funct. Ecol. 12: 959-964.

320.- Pimienta-Barrios, E., and Nobel, P.S. (1998) Vegetative, reproductive, and physiological adaptations to aridity of pitayo (Stenocereus queretaroensis (Weber) Buxbaum). Econ. Bot. 52: 401-411.

321.- Raveh, E., and Nobel, P.S. (1999) CO2 uptake and water loss accompanying vernalization for detached cladodes of Opuntia ficus-indica. Int. J. Plant Sci. 160: 92-97.

322.- Nobel, P.S., and Loik, M.E. (1999) Form and function of cacti. In: R.H. Robichaux, ed. Ecology and Conservation of the Sonoran Desert Flora. University of Arizona Press, Tucson. Pp. 143-163.

323.- Graham, E.A., and Nobel, P.S. (1999) Root water uptake, leaf water storage and gas exchange of a desert succulent: Implications for root system redundancy. Ann. Bot. 84:213-223.

324.- Linton, M.J., and Nobel, P.S. (1999) Loss of water transport capacity due to xylem cavitation in roots of two CAM succulents. Amer. J. Bot. 86: 1538-1543.

325.- Nobel, P.S. (1999) Photosynthetic characteristics of CAM succulents with high productivity. In: G. Garab, ed. Photosynthesis: Mechanisms and Effects, Vol. V. Kluver Academic Publishing, Dordrecht, The Netherlands. Pp. 3955-3960.

326.- North, G.B., and Nobel, P.S. (2000) Heterogeneity in water availability alters cellular development and hydraulic conductivity along roots of a desert succulent. Ann. Bot. 85: 247-255.

327.- Nobel, P.S, and De la Barrera, E. (2000) Carbon and water balances for young fruits of platyopuntias. Physiol. Plant. 109: 160-166.

328.- Nobel, P.S. (2000) Crop ecosystem responses to climatic change: Crassulacean Acid Metabolism crops. In: K.R. Reddy and H.F. Hodges, eds. Climate Change and Global Crop Productivity. CAB International, N.Y. Pp. 315-331.

329.- Pimienta-Barrios, Eu., Zañudo, J., Yepez, E., Pimienta-Barrios, En., and Nobel, P.S. (2000) Seasonal variations of net CO2 uptake for cactus pear (Opuntia ficus-indica) and pitayo (Stenocereus queretaroensis) in a semi-arid environment. J. Arid Environ. 44: 73-83.

330.- Drennan, P.M., and Nobel, P.S. (2000) Responses of CAM species to increasing atmospheric CO2 concentrations. Plant Cell Environ. 23: 767-781.

331.- Nerd, A., and Nobel, P.S. (2000) Water relations during ripening for fruit of well-watered versus water-stressed Opuntia ficus-indica. J. Amer. Soc. Hort. Sci. 125: 653-657.

332.- Bobich, E.G., and Nobel, P.S. (2001) Biomechanics and anatomy of cladode junctions for two Opuntia (Cactaceae) species and their hybrid. Am. J. Bot. 88: 391-400.

333.- Bobich, E.G., and Nobel, P.S. (2001) Vegetative reproduction as related to biomechanics, morphology and anatomy of four cholla cactus species in the Sonoran Desert. Ann. Bot. 87: 485-493.

334.- Martre, P., North, G.B. and Nobel, P.S. (2001) Hydraulic conductance and mercury-sensitive water transport for roots of Opuntia acanthocarpa in relation to soil drying and rewetting. Plant Physiol. 126: 352-362.

335.- Linton, M.J., and Nobel, P.S. (2001) Hydraulic conductance, hylem cavitation and water potential for succulent leaves of Agave deserti and A. tequilana. Int. J. Plant Sci. 162: 747-754.

336.- Pimienta-Barrios, E., Robles-Murguia, C., and Nobel, P.S. (2001) Net CO2 uptake for Agave tequilana in a warm and a temperate environment. Biotropica 33: 312-318.

337.- Nobel, P.S. (2001) Ecophysiology of Opuntia ficus-indica In: C. Mondragon-Jacobo and S. Perez-Gonzalez, eds, Cactus (Opuntia spp) as forage, FAO Plant Production and Protection Paper 169, FAO, Rome, Pp. 13-20

338.- Pimienta-Barrios, E., González del Castillo-Aranda, M.E., and Nobel, P.S. (2002) Ecophysiology of a wild platyopuntia exposed to prolonged drought Environ. Exp. Bot. 47:77-86.

339.- Nobel, P.S., and Bobich, E.G. (2002) Plant frequency, stem and root characteristics, and CO2 uptake for Opuntia acanthocarpa: elevational correlates in the northwestern Sonoran Desert. Oecologia 130: 165-172.

340.- Nobel, P.S. (2001) Ecophysiology of roots of desert plants, with special reference to agaves and cacti. In: Y. Waisel, A. Eshel, and U. Kafkafi, eds. Plant Roots: The Hidden Half, 3rd Ed. Marcel Dekker, New York. In press.

341.- Nobel, P.S., Pimienta-Barrios, E., Zañudo Hernández, J., and Ramírez-Hernández B. (2002) Historical aspects and net CO2 uptake for cultivated Crassulacean acid metabolism plants in Mexico Ann. Appl. Biol. 140: 133-142.

342.- Pimienta-Barrios, Eu., Pimienta-Barrios, En., Salas-Galván, M.E., Zañudo-Hernández J., and Nobel, P.S. (2002) Growth and reproductive characteristics of the columnar cactus Stenocereus queretaroensis and their relationships with environmental factors and colonization by arbuscular mycorrhizae Tree Physiol. 22:667-374.

343.- Nobel, P.S. and Bobich, E.G. (2002) Environmental biology. In: P.S. Nobel, ed. Cacti: Biology and Uses, University of California Press, Berkeley, California. In press.

344.- Nobel, P.S. and De la Barrera, E. (2002) High temperatures and net CO2 uptake, growth, and stem damage for the hemiepiphytic cactus Hylocereus undatus Biotropica 32:225-231.

345.- Bobich, E.G., and Nobel, P.S. (2002) Cladode junction regions and their biomechanics for arborescent platyopuntias Int. J. Plant Sci. 163: 507-517.

346.- Nobel, P.S. (2001) Physiological ecology of columnar cacti. In: T.H. Fleming and A. Valiente-Banuet, eds. Evolution, Ecology and Conservation of Columnar Cacti and Their Mutualists, University of Arizona Press, Tucson, Atizona. In press.

347.- Nobel, P.S. and De la Barrera, E. (2002) Stem water relations and net CO2 uptake for a hemiepiphytic cactus during short-term drought Environ. Exp. Bot. 48:129-137.

348.- Nobel, P.S. and Bobich, E.G. (2002) Initial net CO2 uptake responses and root growth for a CAM community placed in a closed environment Ann. Bot. 90:593-598.

349.- Nobel, P.S. (2002) Cactus physiological ecology, emphasizing gas exchange of cactus fruits Acta Hort 581:143-150

350.- Martre, P., North, G.B., Bobich, E.G., and Nobel, P.S. (2002) Root deployment and shoot growth for two desert species in response to soil rockiness Amer. J. Bot. 89:1933-1939.

351.- Nobel, P.S. and De la Barrera, E. (2002) Nitrogen relations for net CO2 uptake by the cultivated hemiepiphytic cactus, Hylocereus undatus Sci. Hort. 96:281-292.

352.- Martre, P., Morillon, Raphael, Barrieu, F., North, G.B., Nobel, P.S., and Chrispeels, M. (2002) Plasma membrane aquaporins play a significant role during recovery from water deficit Plant Physiol. 130:2101-2110.

353.- Nobel, P.S., De la Barrera, E., Beilman, D.W., Doherty, J.H., and Zutta, B.R. (2002) Temperature limitations for cultivation of edible cacti in California. Madroño 49:228-236.

351.- De la Barrera, E. and Nobel, P.S. (2003) Physiological ecology of seed germination for the columnar cactus Stenocereus queretaroensis J. Arid Environ. 53: 297-306.

355.- Nobel, P.S. and De la Barrera, E. (2003) Tolerances and acclimation to low and high temperatures for cladodes, fruits, and roots of a widely cultivated cactus, Opuntia ficus-indica New Phytol. 157:271-279.