Skip to Main Content
Endophytic bacteria in cacti seeds can improve the development of cactus seedlings.Author(s): M. Esther Puente; Ching Y. Li; Yoav Bashan
Source: Environmental and Experimental Botany. 66: 402-408
Publication Series: Scientific Journal (JRNL)
Station: Pacific Northwest Research Station
Download Publication (3.44 MB)
DescriptionA plant-bacterium association between the giant cardon cactus Pachycereus pringlei and endophytic bacteria help seedlings establish and grow on barren rock, This cactus, together with other desert plants, is responsible for weathering ancient lava flows in the Baja California Peninsula of Mexico.When cardon seeds are inoculated with endophytic bacteria, the seedlings grow in pulverized rock for at least a year without fertilization and without showing distress. The bacteria-plant association released significant amounts of necessary nutrients from the substrate. When endophytic bacteria were eliminated from the seeds by antibiotics, development of seedlings stopped. In complementary experiments of sterile seeds inoculated with the same endophytic bacteria, plant growth was restored. This study and the previous one show that, under extreme environmental conditions, a symbiotic relationship is present between endophytic bacteria and their cactus host.
- You may send email to email@example.com to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationPuente, M.E.; Li, C.Y.; Bashan, Y. 2009. Endophytic bacteria in cacti seeds can improve the development of cactus seedlings. Environmental and Experimental Botany. 66: 402-408.
KeywordsBacillus, cactus, cardon, desert, rock degradation, nitrogen fixation, Pachyereus, phosphate solubilization, rock weathering, soil formation
- The Trophic Significance of Bacteria in a Detritus-Based Stream Food Web
- Bacteria of living and dead larvae of Porthetria dispar (L.)
- Isolating metal-tolerant bacteria capable of removing copper, chromium, and arsenic from treated wood
XML: View XML