title: Herbaspirillum sp. strain GW103 alleviates salt stress in Brassica rapa L. ssp. pekinensis.
abstract: Mutual interactions between plant and rhizosphere bacteria facilitate plant growth and reduce risks of biotic and abiotic stresses. The present study demonstrates alleviation of salt stress in Brassica rapa L. ssp. perkinensis (Chinese cabbage) by Herbaspirillum sp. strain GW103 isolated from rhizosphere soil of Phragmites australis. The strain was capable of producing plant beneficial factors, such as auxin, siderophore, and 1-aminocylopropane-1-carboxylic acid deaminase. Treatment of strain GW103 on Chinese cabbage under salt stress increased K(+)/Na(+) ratio in roots generating balance in the ratio of ion homeostasis and consequently contributed to the increase of biomass. In addition, root colonization potential of the strain was observed by green fluorescent protein (GFP)-tagging approach. These results strongly suggest the beneficial impact of strain GW103 by inducing the alleviation of salt stress and development of stress tolerance in Chinese cabbage via plant-microbe interaction.
authors.affiliation: Division of Biotechnology, Chonbuk National University, Iksan, 570-752, South Korea.|Research Division for Biotechnology, Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup, 580-185, South Korea.
authors.forename: Gun Woong
authors.initials: GW
authors.lastname: Lee
authors.affiliation: Advanced Institute of Environmental and Bioscience, Chonbuk National University, Iksan, 570-752, South Korea. kuijael@jbnu.ac.kr.|Division of Biotechnology, Chonbuk National University, Iksan, 570-752, South Korea. kuijael@jbnu.ac.kr.
authors.forename: Kui-Jae
authors.initials: KJ
authors.lastname: Lee
authors.affiliation: Advanced Institute of Environmental and Bioscience, Chonbuk National University, Iksan, 570-752, South Korea. chae@jbnu.ac.kr.|Division of Biotechnology, Chonbuk National University, Iksan, 570-752, South Korea. chae@jbnu.ac.kr.
authors.forename: Jong-Chan
authors.initials: JC
authors.lastname: Chae
mesh_terms: D029741:Brassica rapa / Q000254:growth & development / Q000382:microbiology / Q000502:physiology*; D019755:Carbon-Carbon Lyases / Q000378:metabolism; D049452:Green Fluorescent Proteins / Q000235:genetics / Q000378:metabolism; D042803:Herbaspirillum / Q000302:isolation & purification / Q000502:physiology*; D007210:Indoleacetic Acids / Q000378:metabolism; D018517:Plant Roots / Q000382:microbiology; D011188:Potassium / Q000378:metabolism; D058441:Rhizosphere; D055049:Salt Tolerance; D017262:Siderophores / Q000378:metabolism; D012964:Sodium / Q000378:metabolism; D012988:Soil Microbiology; D013312:Stress, Physiological / Q000502:physiology*; D013559:Symbiosis
chemical_list: D007210:Indoleacetic Acids; D017262:Siderophores; D049452:Green Fluorescent Proteins; D012964:Sodium; C033634:1-aminocyclopropane-1-carboxylate deaminase; D019755:Carbon-Carbon Lyases; D011188:Potassium
keywords: Chinese cabbage; Herbaspirillum; Plant-microbe interaction; Rhizosphere