The paper on isoprenoid emission under drought stress addresses a topic suitable for BG and provides some new insights. Two expert reviews are generally supportive, but at least one Reviewer has significant concerns and suggests major revisions. I concur and think the paper can be made publishable in BG after such revisions. And so I recommend Major Revisions to give the authors the opportunity to address the substantial comments, including the general and some important specific ones, of the Refs, as they outline in the responses, but perhaps go beyond the indicated "minor revisions", and with clearly implementing these revisions in the text.