We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Covering Soybean Leaves With Cellulose Nanofiber Changes Leaf Surface Hydrophobicity and Confers Resistance Against Phakopsora pachyrhizi.
- Authors
Saito, Haruka; Yamashita, Yuji; Sakata, Nanami; Ishiga, Takako; Shiraishi, Nanami; Usuki, Giyu; Nguyen, Viet Tru; Yamamura, Eiji; Ishiga, Yasuhiro
- Abstract
Asian soybean rust (ASR) caused by Phakopsora pachyrhizi , an obligate biotrophic fungal pathogen, is the most devastating soybean production disease worldwide. Currently, timely fungicide application is the only means to control ASR in the field. We investigated cellulose nanofiber (CNF) application on ASR disease management. CNF-treated leaves showed reduced lesion number after P. pachyrhizi inoculation compared to control leaves, indicating that covering soybean leaves with CNF confers P. pachyrhizi resistance. We also demonstrated that formation of P. pachyrhizi appressoria, and also gene expression related to these formations, such as chitin synthases (CHSs), were significantly suppressed in CNF-treated soybean leaves compared to control leaves. Moreover, contact angle measurement revealed that CNF converts soybean leaf surface properties from hydrophobic to hydrophilic. These results suggest that CNF can change soybean leaf surface hydrophobicity, conferring resistance against P. pachyrhizi , based on the reduced expression of CHSs , as well as reduced formation of pre-infection structures. This is the first study to investigate CNF application to control field disease.
- Subjects
PHAKOPSORA pachyrhizi; CELLULOSE; DISEASE management; CONTACT angle; CHITIN synthase; SOYBEAN; SOYBEAN diseases &; pests
- Publication
Frontiers in Plant Science, 2021, Vol 12, p1
- ISSN
1664-462X
- Publication type
Article
- DOI
10.3389/fpls.2021.726565