POWER OF ATTORNEY



KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned, MONSANTO COMPANY, a corporation

duly organized under the laws of the State of Delaware, United States (the "Company")

does hereby make, constitute and appoint each of MICHELLE BUSHORE, NANCY E. HAMILTON,

MATTHEW E. JOHNSON, CHRISTOPHER A. MARTIN and JENNIFER L. WOODS, acting severally, as

its true and lawful attorneys-in-fact, for him or her and to execute in its name and

on its behalf, whether the Company is acting individually or as representative of

others, any and all documents, certificates, instruments statements, other filings and

amendments to the foregoing (collectively, "documents") determined by such person to be

necessary or appropriate to comply with ownership or control-person reporting requirements

imposed by any United States or non-United States governmental or regulatory authority,

including without limitation Forms 3, 4, 5, 13D and 13G and any and all amendments to

the foregoing as may be required to be filed with the Securities and Exchange Commission,

and deliver, furnish or file any such documents with the appropriate governmental

regulatory authority, each of said attorneys-in-fact and agents to have power to act

with or without the others and to have full power to act with or without the others

and to have full power and authority to do and to perform in the name and on behalf

of the Company every act whatsoever necessary or advisable to be done in the premises

as fully and to all intents and purposes as the Company might or could do if personally

present by one of its authorized signatories, hereby ratifying and confirming all that

said attorneys-in-fact and/or any of them may lawfully do or cause to be done by

virtue hereof.  Any such determination by an attorney-in-fact named herein shall be

conclusively evidenced by such person's execution, delivery, furnishing or filing

of the applicable document.



This power of attorney shall be valid from the date hereof and shall remain in

full force and effect until either revoked in writing by the Company, or, in respect

of any attorney-in-fact named herein, until such person ceases to be an employee

of the Company or one of its affiliates.



IN WITNESS WHEREOF, the undersigned has caused this power of attorney to be

executed as of this 11th day of February 2015.



MONSANTO COMPANY





By: /s/ Pierre Courduroux

Name:  Pierre Courduroux

Title: Senior Vice President and Chief Financial Officer