Abstract
The uptake and transport of iron (Fe) in plants are both important for plant growth and human health. However, little is known about the mechanism of Fe transport in plants, especially for crops. In the present study, the function of yellow stripe-like 13 (YSL13) in rice was analyzed. OsYSL13 was highly expressed in leaves, especially in leaf blades, whereas its expression was induced by Fe deficiency both in roots and shoots. Furthermore, the expression level of OsYSL13 was higher in older leaves than that in younger leaves. OsYSL13 was located in the plasma membrane. Metal measurement revealed that Fe concentrations were lower in the youngest leaf and higher in the older leaves of the osysl13 mutant under both Fe sufficiency and deficiency conditions, compared with the wild type and two complementation lines. Moreover, the Fe concentrations in the brown rice and seeds of the osysl13 mutant were also reduced. Opposite results were found in OsYSL13 overexpression lines. These results suggest that OsYSL13 is involved in Fe distribution in rice.
Highlights
Iron (Fe) is one of the essential microelements for both plants and humans
The results showed that Fe concentrations in the seeds and brown riceofof osysl13 mutant reduced, while these were inincreased in overexpression the OsYSL13 brown rice osysl13 mutant were were reduced, while these were increased the OsYSL13 overexpression with their wild corresponding wild
Vacuolar iron transporter 1 (VIT1) and VIT2 are localized to the vacuolar membrane and translocation [33]
Summary
Iron (Fe) is one of the essential microelements for both plants and humans. It exists in multiple redox states and has vital roles in diverse physiological processes such as the photosynthesis, respiration, chlorophyll biosynthesis, production, and scavenging of reactive oxygen species [1,2].Plant growth will be inhibited and the yield will be reduced under Fe deficiency [1,3]. Iron (Fe) is one of the essential microelements for both plants and humans. It exists in multiple redox states and has vital roles in diverse physiological processes such as the photosynthesis, respiration, chlorophyll biosynthesis, production, and scavenging of reactive oxygen species [1,2]. Plant growth will be inhibited and the yield will be reduced under Fe deficiency [1,3]. Fe deficiency is one of the most common forms of micronutrient malnutrition (MNM) in the world, and it results in around 0.8 million deaths (1.5% of the total) each year (WHO publications, http://www.who.int/nutrition/publications/micronutrients). In order to keep Fe at a suitable concentration in plants, multiple transporters, including the yellow stripe-like (YSL) transporter family, are involved in
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
