Asset Details
Do you wish to reserve the book?
Host lignin composition affects haustorium induction in the parasitic plants Phtheirospermum japonicum and Striga hermonthica
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Host lignin composition affects haustorium induction in the parasitic plants Phtheirospermum japonicum and Striga hermonthica
Do you wish to request the book?
Host lignin composition affects haustorium induction in the parasitic plants Phtheirospermum japonicum and Striga hermonthica
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Host lignin composition affects haustorium induction in the parasitic plants Phtheirospermum japonicum and Striga hermonthica
2018
Overview
Summary Parasitic plants in the family Orobanchaceae are destructive weeds of agriculture worldwide. The haustorium, an essential parasitic organ used by these plants to penetrate host tissues, is induced by host‐derived phenolic compounds called haustorium‐inducing factors (HIFs). The origin of HIFs remains unknown, although the structures of lignin monomers resemble that of HIFs. Lignin is a natural phenylpropanoid polymer, commonly found in secondary cell walls of vascular plants. We therefore investigated the possibility that HIFs are derived from host lignin. Various lignin‐related phenolics, quinones and lignin polymers, together with nonhost and host plants that have different lignin compositions, were tested for their haustorium‐inducing activity in two Orobanchaceae species, a facultative parasite, Phtheirospermum japonicum, and an obligate parasite, Striga hermonthica. Lignin‐related compounds induced haustoria in P. japonicum and S. hermonthica with different specificities. High concentrations of lignin polymers induced haustorium formation. Treatment with laccase, a lignin degradation enzyme, promoted haustorium formation at low concentrations. The distinct lignin compositions of the host and nonhost plants affected haustorium induction, correlating with the response of the different parasitic plants to specific types of lignin‐related compounds. Our study provides valuable insights into the important roles of lignin biosynthesis and degradation in the production of HIFs. See also the Commentary on this article by Rich, 218: 404–406.
