Item 2.02 Results of Operations and Financial Condition.

On April 30, 2007, Diversa Corporation (the "Company") issued a press release announcing the Company's financial results for the quarter ended March 31, 2007. The information in Item 2.02 of this Current Report on Form 8-K and Exhibit 99.1 attached hereto shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934 (the "Exchange Act") or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933 or the Exchange Act, regardless of any general incorporation language in such filing.

Item 8.01 Other Events.

On March 19, 2007, the Company filed with the Securities and Exchange Commission a registration statement on Form S-4 that includes a proxy statement/prospectus and other relevant documents in connection with the proposed merger between the Company and Celunol Corp. and related transactions. Investors and security holders of the Company and Celunol are urged to read the proxy statement/prospectus (including any amendments or supplements to the proxy statement/prospectus) and other relevant materials, because they contain important information about the Company, Celunol, and the proposed merger and related transactions. Investors may obtain a free copy of these materials and other documents filed with the Securities and Exchange Commission at the SEC's website at http://www.sec.gov. A free copy of the proxy statement/prospectus may also be obtained from the Company by directing a request to: Diversa Corporation, 4955 Directors Place, San Diego, CA 92121, Attn. Investor Relations. In addition, investors may access copies of the documents filed with the SEC by the Company on the Company's website at http://www.diversa.com.

The Company and its executive officers and directors and Celunol and its executive officers and directors may be deemed to be participants in the solicitation of proxies from the stockholders of the Company in connection with the proposed merger between the Company and Celunol and related transactions. Information regarding the special interests of these executive officers and directors in the proposed merger and related transactions as well as additional information regarding these individuals is included in the proxy statement/prospectus referred to above. This document is available free of charge at the SEC's website (http://www.sec.gov) and from Investor Relations at the Company at the address described above.

Item 9.01 Financial Statements and Exhibits.

99.1 Press Release of Diversa Corporation dated April 30, 2007.

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