{"id":576397,"date":"2026-07-31T01:18:18","date_gmt":"2026-07-31T01:18:18","guid":{"rendered":"https:\/\/www.newsbeep.com\/ie\/576397\/"},"modified":"2026-07-31T01:18:18","modified_gmt":"2026-07-31T01:18:18","slug":"upstream-biotech-raises-seed-funds-for-on-demand-crop-defense","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/ie\/576397\/","title":{"rendered":"Upstream Biotech raises seed funds for \u2018on-demand\u2019 crop defense"},"content":{"rendered":"

Plants already have the tools to respond to a range of biotic and abiotic threats. The problem, says North Carolina-based startup Upstream Biotechnology<\/a>, is that genes conferring disease resistance can also impose a yield penalty.<\/p>\n

Put another way, if a plant is constantly producing proteins to tackle threats, it\u2019s expending energy that could otherwise go into growth.<\/p>\n

Founded on research into plant immunity out of Professor Xinnian Dong\u2019s Lab at Duke University<\/a>, Upstream introduces a molecular gate or \u201cSwitchBlade\u201d that activates defenses only when and where they are needed,<\/p>\n

As a result, Upstream can \u201caddress one of the central tradeoffs in crop biotechnology: improving disease resistance without imposing the yield penalties often associated with constitutive defense activation,\u201d claims cofounder and CEO George H. Greene PhD.<\/p>\n

\u201cThe platform regulates trait activation at the level of protein translation, enabling plants to activate resistance traits in response to disease or stress while maintaining normal growth under non-stress conditions,\u201d adds Greene, who has just raised a seed round led by LeVert Ventures<\/a>, with participation from Corteva Catalyst<\/a>, Silver Blue<\/a>, VTC Ventures<\/a>, and others.<\/p>\n

During normal conditions, the gene\u2019s instructions may be present, but the SwitchBlade tech largely prevents them from being translated into defensive proteins, says Greene. When disease or other stressors are detected, however, the gate is released, allowing the plant to produce the protein and activate its defenses only when needed.<\/p>\n

\u201cUpstream is developing a differentiated platform that could become an enabling technology for disease resistance and crop resilience across multiple crops. The company\u2019s science is rooted in world-class plant immunity research, and its partnership-driven model aligns well with how major seed companies evaluate and deploy new trait technologies.\u201d Karen LeVert, managing partner, LeVert Ventures<\/p>\n

Switching defenses on only when they are needed<\/p>\n

The new tranche of capital will be used to advance the SwitchBlade platform, expand validation across more crops, strengthen IP, and support collaborations with seed industry partners, Greene tells AgFunderNews.<\/p>\n

While plants have evolved to develop defense mechanisms to tackle threats, there is no particular evolutionary advantage in doing that on a selective basis, points out Greene. \u201cPlants don\u2019t really care if you\u2019re getting 40 bushels an acre versus 20. The job for the plant is to simply survive to the next generation.<\/p>\n

\u201cWe\u2019re using the plant\u2019s natural [disease resistance] traits and adding a new control layer on top to improve how those traits perform. Our tech controls when an existing genetic message is translated into protein, which means in normal conditions trait activation is low, but when the plant needs to respond to stress, it turns on and increases the trait activation at the appropriate time. So you\u2019re really controlling when and where the defense response is triggered in the plant so you get the benefit with none of that metabolic drag.\u201d<\/p>\n

The defensive response is also localized, which further prevents yield drag, he added. \u201cThat is another key component of what we\u2019re doing. Other approaches focus on systemic activation, asking the whole plant to defend itself, even though the whole plant isn\u2019t experiencing the stress. Our technology is really focused at the site of the infection or abiotic stress.\u201d<\/p>\n

Tech can be deployed across multiple crops<\/p>\n

According to Greene, the tech can be applied to multiple crops from soy, corn, and rice to tomatoes. It can also be used on multiple pests from Asian soybean rust and other fungal foliar pathogens to abiotic stress (drought, heat etc) or bacterial pathogens.<\/p>\n

\u201cThere is some customizing that would need to be done for each switch, but we\u2019re not starting from scratch each time,\u201d he explains. \u201cIt\u2019s more about tweaking, adapting, and refining the system when we look at a different crop target or indication.\u201d<\/p>\n

\u2018We are the control layer, not the finished product\u2019<\/p>\n

How the tech is regulated depends on the application and would be worked through with seed companies Upstream is partnering with, says Greene. In some cases, for example, partners might introduce a disease resistance gene in tandem with Upstream Bio\u2019s SwitchBlade tech.<\/p>\n

\u201cWe are the control layer and expression system, not the finished product. The SwitchBlade platform translation control doesn\u2019t necessarily care what background gene you\u2019re using.\u201d<\/p>\n

The business model<\/p>\n

Historically, regulating where and when messenger RNA is used to make a particular protein \u201chas been difficult,\u201d says Greene. \u201cBut this is where the 30 years of research at Duke [University] has de-risked the platform. Where we see ourselves as unique is the ability to use translational control to respond to environmental challenges.\u201d<\/p>\n

He added: \u201cTo date, we\u2019ve demonstrated efficacy across multiple row crop systems and we\u2019re advancing programs across row crops and specialty crops for biotic and abiotic stress.\u201d<\/p>\n

The business model is to license the tech to seed companies although the firm could also potentially develop traits in-house and license those, he says.<\/p>\n

\u201cWe\u2019re not doing gene discovery [for disease resistance]. These seed companies have their own sets of traits that they know are valuable, but they need to be perfected based on timing and performance. We\u2019re providing the ability to fine-tune translational control for precise trait activation, which could drive real value.\u201d<\/p>\n

Further reading:<\/p>\n

\ud83c\udfa5 Can editing the \u2018dark genome\u2019 make crops more heat tolerant?<\/a><\/p>\n

Resurrect Bio expands Series A to $10.3m to scale tech helping plants to defend themselves<\/a><\/p>\n

Phytoform partners with major seed breeders to bring AI-powered plant design to corn crops<\/a><\/p>\n

\ud83c\udfa5 Digital twins: Heritable Ag combines AI, genomics and environmental data to slash R&D timelines<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"Plants already have the tools to respond to a range of biotic and abiotic threats. The problem, says…\n","protected":false},"author":2,"featured_media":576398,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[61,60,80],"class_list":["post-576397","post","type-post","status-publish","format-standard","has-post-thumbnail","category-technology","tag-ie","tag-ireland","tag-technology"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts\/576397","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/comments?post=576397"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts\/576397\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/media\/576398"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/media?parent=576397"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/categories?post=576397"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/tags?post=576397"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}