Plant growth-promoting bacteria and desert re-vegetation

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Increase in the volume of cardon cactus, grown in an eroded area, and inoculated with Azospirillum brasilense Increase in volume (%) 35 30 25 20 15 10 5 0 1 3 5 Inoculated Naturally grown Bashan et. al. 1999. Can. J. Microbiol. 7 Noninoculated 9 13 17 21 25 29 33 37 41 11 15 19 23 27 31 35 39 Months
Increase in proton extrusion from roots and acidification of the rhizosphere of inoculated cacti • Cacti inoculated with Azospirillum extrude more protons • The pH of the rhizosphere is lower • Adsorption of minerals increased { Rhizosphere pH 7.4 7.3 7.2 7.1 7 6.9 6.8 Carrillo et al. Naturwissenshften, 2002 Bulk soil Soil + ammonium Soil + Ammonium + Azospirillum
Page 1 and 2: Plant growth-promoting bacteria and
Page 3 and 4: DESERT REFORESTATION AIDED BY PLANT
Page 5 and 6: U N U DISTURBED DESERT OF THE FLATL
Page 7 and 8: THREE YEARS AFTER CLEAR-CUTTING OF
Page 9 and 10: TYPICAL SOIL EROSION ON MODERATE SL
Page 11 and 12: CITY OF LA PAZ. EARLY SUNDAY MORNIN
Page 13 and 14: DUST CLOUD ABOVE THE CITY OF LA PAZ
Page 15 and 16: Our proposal for an environmental s
Page 17 and 18: THE MAIN PROBLEMS OF USING CACTI AR
Page 19 and 20: Possible microbial solutions? Artif
Page 21: EFFECT OF INOCULATION WITH AZOSPIRI
Page 25 and 26: Log cfu/g (roots or soil) 7 6 5 4 3
Page 27 and 28: Distribution of small roots in the
Page 29 and 30: Distribution of small roots in the
Page 31 and 32: CONCLUSIONS OF THIS STUDY Natural V
Page 33 and 34: What had happened to the What happe
Page 35 and 36: CARDON CACTI GROWING IN ROCKS IN TH
Page 37 and 38: 1 M WILD FIG TREES GROWING IN CLIFF
Page 39 and 40: COLONIZATION OF ROOT SURFACE OF CAR
Page 41 and 42: What kinds of microbial communities
Page 43 and 44: USING PGPBs FOR DESERT REFORESTATIO

Plant growth-promoting bacteria and desert re-vegetation

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