What bacterial strain is isolated in the healthy 10-day-old variety of maize with a high sugar content?
Elizabethkingia endophytica Elizabethkingia endophytica is a slightly yellow Gram-stain-negative rod-shaped bacterial strain isolated from the stem of healthy 10-day-old sweet corn ("Zea mays"). A comparison of the 16S rRNA gene sequence of the isolate showed 99.1, 97.8, and 97.4% similarity to the 16S rRNA gene sequences of the type strains of "Elizabethkingia anophelis", "Elizabethkingia meningoseptica" and "Elizabethkingia miricola", respectively. DNA-DNA hybridization indicated that the strain is representative of a new species.
Piriformospora Piriformospora is a fungal genus of the order Sebacinales. It is a monotypic genus, containing the single endophytic root-colonising species Piriformospora indica, discovered from orchid plants in the Thar desert in Rajasthan, India by Prof. Ajit Verma and group, School of Life Sciences, Jawaharlal Nehru University, New Delhi. The fungus has typical pear-shaped chlamydospores, and thus, named as "P. indica ". Unlike mycorrhizal fungi, which cannot be cultured axenically, "P. indica" can be easily grown on various substrates. It has been found to promote plant growth during its mutualistic symbiotic relationship with a wide variety of plants. Experiments have shown that "P. indica" increases the resistance of colonized plants against fungal pathogens. It has also been found in experiments with barley that "P. indica"-inoculated plants are tolerant to salt stress and more resistant to root pathogens. "P. indica"-infested roots also show antioxidant capacity. The fungus also induces systemic disease resistance in plants. "P. indica" was found to require host cell death for proliferation during mutualistic symbiosis in barley. Its genome has been sequenced and was published in 2011.