We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Fe2+ Ions Alleviate the Symptom of Citrus Greening Disease.
- Authors
Inoue, Haruhiko; Yamashita-Muraki, Sakiko; Fujiwara, Kanako; Honda, Kayoko; Ono, Hiroki; Nonaka, Takamasa; Kato, Yuichi; Matsuyama, Tomoya; Sugano, Shoji; Suzuki, Motofumi; Masaoka, Yoshikuni
- Abstract
Citrus greening (CG) is among the most devastating citrus diseases worldwide. CG-infected trees exhibit interveinal chlorotic leaves due to iron (Fe) deficiency derived from CG; thus, Fe content is lower in infected leaves than in healthy leaves. In this study, we demonstrated that the foliar application of Fe2+ relieves the symptom of CG infection in citrus trees. We applied Fe2+ and citrate to the leaves of infected rough lemon plants. Following this treatment, a reduction in the number of yellow symptomatic leaves was observed, and their growth was restored. Using chlorophyll content as an index, we screened for effective Fe complexes and found that a high ratio of citrate to Fe2+ in the applied solution led to effects against CG in Shikuwasa trees. A high proportion of Fe2+ to total Fe was another key factor explaining the effectiveness of the solution in CG infection, indicating the importance of Fe2+ absorption into plant cells. We confirmed the proportion of Fe2+ to total Fe through the high correlation of reflectometry data via a triazine reaction and X-ray absorption fine structure analysis. These results demonstrate that the foliar application of a high-Fe2+ citrate solution can restore the growth of CG diseased trees.
- Subjects
CITRUS greening disease; CITRATES; X-ray absorption; IONS
- Publication
International Journal of Molecular Sciences, 2020, Vol 21, Issue 11, p4033
- ISSN
1661-6596
- Publication type
Article
- DOI
10.3390/ijms21114033