Plant growth-promoting bacterium Acinetobacter calcoaceticus P23 increases the chlorophyll content of the monocot Lemna minor (duckweed) and the dicot Lactuca sativa (lettuce).
Acinetobacter calcoaceticus P23 is a plant growth-promoting bacterium that was isolated from the surface of duckweed (Lemna aoukikusa). The bacterium was observed to colonize on the plant surfaces and increase the chlorophyll content of not only the monocotyledon Lemna minor but also the dicotyledon Lactuca sativa in a hydroponic culture. This effect on the Lactuca sativa was significant in nutrient-poor (×1/100 dilution of H2 medium) and not nutrient-rich (×1 or ×1/10 dilutions of H2 medium) conditions. Strain P23 has the potential to play a part in the future development of fertilizers and energy-saving hydroponic agricultural technologies.
Graduate School of Environmental Science, Hokkaido University, N10-W5, Kita-ku, Sapporo 060-0810, Japan.
Wakako
W
Suzuki
Graduate School of Environmental Science, Hokkaido University, N10-W5, Kita-ku, Sapporo 060-0810, Japan; Advanced Low Carbon Technology Research and Development Program (ALCA), Department of Green Innovation, Japan Science and Technology Agency, K's Gobancho, Chiyoda-ku, Tokyo 102-0076, Japan.
Masayuki
M
Sugawara
Creative Research Institution, N21-W10, Kita-ku, Sapporo 001-0021, Japan; Advanced Low Carbon Technology Research and Development Program (ALCA), Department of Green Innovation, Japan Science and Technology Agency, K's Gobancho, Chiyoda-ku, Tokyo 102-0076, Japan.
Kyoko
K
Miwa
Graduate School of Environmental Science, Hokkaido University, N10-W5, Kita-ku, Sapporo 060-0810, Japan; Advanced Low Carbon Technology Research and Development Program (ALCA), Department of Green Innovation, Japan Science and Technology Agency, K's Gobancho, Chiyoda-ku, Tokyo 102-0076, Japan. Electronic address: morikawa@ees.hokudai.ac.jp.
Masaaki
M
Morikawa
D016954:Acinetobacter calcoaceticus / Q000502:physiology*; D029064:Araceae / Q000378:metabolism* / Q000382:microbiology; D002734:Chlorophyll / Q000378:metabolism*; D018527:Hydroponics; D018545:Lactuca / Q000378:metabolism* / Q000382:microbiology
D002734:Chlorophyll
Acinetobacter calcoaceticus P23; Chlorophyll content; Lactuca sativa; Lemna minor; Plant growth-promoting bacteria