Yanyan Fan
Research Subjects
Research Interests
Yanyan Fan has a total of 6 co-authors. Here are the top co-authors by number of shared publications:
- Hada Wuriyanghan
School of Life Science, Inner Mongolia University, Hohhot 010030, China
1 shared publication - Lele Li
School of Life Science, Inner Mongolia University, Hohhot 010030, China
1 shared publication - Rui Xu
School of Life Science, Inner Mongolia University, Hohhot 010030, China
1 shared publication - Ruixuan Zhao
School of Life Science, Inner Mongolia University, Hohhot 010030, China
1 shared publication - Runyao Bai
School of Life Science, Inner Mongolia University, Hohhot 010030, China
1 shared publication - Yannan Li
School of Life Science, Inner Mongolia University, Hohhot 010030, China
1 shared publication
Latest Publications
- Open Access
A Fructan 6-Exohydrolase from Orobanche cumana Boosts Waterlogging Tolerance in Parasitic and Root Tissues
Plants adapt to abiotic stresses by a variety of physiological and molecular mechanisms, among which the root plays important roles via responding to underground and soilborne signals. Fructan is a polysaccharide involved in energy metabolism and stress adaptation. Orobanche cumana is a holo-parasitic plant that mainly attaches to the root of the host sunflower (Helianthus annuus). Oc6-FEH, a fructan 6-exohydrolase from O. cumana, is involved in both fructan metabolism and flooding responses. Expression of Oc6-FEH is induced by flooding and indole-3-acetic acid (IAA). Oc6-FEH possesses fructan catabolism activity and is associated with fructose release. Overexpression of Oc6-FEH in the host sunflower reduces malondialdehyde (MDA) and hydrogen peroxide (H2O2) accumulation, boosts the activities of antioxidant enzymes, including peroxidase (POD) and superoxide dismutase (SOD), and enhances photosynthetic performance. The expression level of Oc6-FEH was found to be positively associated with the flooding tolerance of invading O. cumana, which is connected to the host root. Furthermore, IAA treatment also improved the flooding tolerance of O. cumana. In summary, the metabolism of fructan and the activity of Oc6-FEH were demonstrated to ameliorate waterlogging stress. Oc6-FEH provides a promising genetic target for the improvement of flooding tolerance in crops.
Open AccessA Fructan 6-Exohydrolase from Orobanche cumana Boosts Waterlogging Tolerance in Parasitic and Root Tissues
Plants adapt to abiotic stresses by a variety of physiological and molecular mechanisms, among which the root plays important roles via responding to underground and soilborne signals. Fructan is a polysaccharide involved in energy metabolism and stress adaptation. Orobanche cumana is a holo-parasitic plant that mainly attaches to the root of the host sunflower (Helianthus annuus). Oc6-FEH, a fructan 6-exohydrolase from O. cumana, is involved in both fructan metabolism and flooding responses. Expression of Oc6-FEH is induced by flooding and indole-3-acetic acid (IAA). Oc6-FEH possesses fructan catabolism activity and is associated with fructose release. Overexpression of Oc6-FEH in the host sunflower reduces malondialdehyde (MDA) and hydrogen peroxide (H2O2) accumulation, boosts the activities of antioxidant enzymes, including peroxidase (POD) and superoxide dismutase (SOD), and enhances photosynthetic performance. The expression level of Oc6-FEH was found to be positively associated with the flooding tolerance of invading O. cumana, which is connected to the host root. Furthermore, IAA treatment also improved the flooding tolerance of O. cumana. In summary, the metabolism of fructan and the activity of Oc6-FEH were demonstrated to ameliorate waterlogging stress. Oc6-FEH provides a promising genetic target for the improvement of flooding tolerance in crops.