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经过基因改造的浮萍可能是一种更可持续的生物燃料来源_我的网站

A |     这项研究是由美国能源部布鲁克海文国家实验室和纽约冷泉港实验室的研究人员进行的。    

    Chinese picture book artist Cai Gao Photo: VCGOn Saturday Beijing time, the 2026 Hans Christian Andersen Award ceremony was held in Canada. Eighty-year-old Chinese picture book artist Cai Gao attended the event in person to receive the medal and certificate, becoming the first Chinese illustrator to win this honor in the award's 60-year history.
The prize is awarded every two years by the International Board on Books for Young People (IBBY) to a living author (since 1956) and illustrator (since 1966). The award is often referred to as the "Nobel Prize for children's literature," honoring lifelong achievements that have made a lasting and important contribution to children's literature. 
During the award ceremony, IBBY President Basarat Kazim praised Cai for the elegant, unrushed style in her works, which encourages children to look closely and discover beauty in quiet corners, according to the Guangming Daily. 
Kazim said Cai's works have an unhurried elegance that encourages children to look closely and discover beauty in quiet, everyday moment.
"This year's winner, Cai Gao, is extremely special. She is as beautiful a person as the drawings she does," Kazim said.
Following author Cao Wenxuan's win of the Hans Christian Andersen Awards as a writer of children's literature in 2016, Cai's achievement means that Chinese creators have now won both the author and illustrator categories, a "double victory."
In her acceptance speech, Cai said, "The future of the world lies in children. There is no greater happiness than creating for them." She also noted that children's books are bridges, connecting cultures and hearts around the world.
Reflecting on her childhood and her years teaching in rural villages, Cai recalled that after six years working as a rural primary school teacher in the 1980s, she joined a publishing house, where she spent two decades as a children's book editor. "This job taught me the most important lesson: to see life through the eyes of a child, and to use art as a way of expressing my feelings about life," she noted.
"I feel the profound weight of this gift from life. I'm filled with mixed emotions. I'm moved and grateful for everything I've been through. Every experience has shaped me into the person I am today," she added.
Alongside her editing career, Cai kept creating original picture books. Her well-known book Yueliang Baba is based on folk songs her grandmother would sing in her native Changsha dialect. Works like Huocheng 1938 (lit: Fire City 1938) were inspired by memories of wartime in Changsha, capital of Central China's Hunan Province. The rural scenery and farming scenes in The Land of the Peach Blossom, a book which is also listed as textbooks for primary school students in Japan, all reflect her lifelong connection to the Hunan countryside and many years quietly editing books at her desk, according to the China News Service. 
Though her illustrations reflect the atmosphere of the times, Cai told the Global Times that her stories' true intentions go beyond the visual; she hopes her work can teach children that "fearlessness and love are ways to overcome hardship."
Books such as Bao'er, Hua Mulan, The Land of the Peach Blossom, and The Hundred Birds' Feather Robe have established Cai as an illustrator who skillfully interprets traditional Chinese culture. She constantly revisits the classics, striving to connect ancient stories to contemporary social and cultural themes.
Before winning the Hans Christian Andersen Award in 2026, Cai became, in 1993, the first Chinese illustrator to win the Golden Apple Award, one of the world's top international honors for children's illustration. Cai has always emphasized that these awards do not belong to her alone. 
"When I learned that I had won the award, my first thought was of all the creators of my generation. This award is not just mine, it belongs to all of us," she said.
Cai's victory fills a six-decade gap for Chinese illustrators in the award's history, Zhang Peng, an associate professor at Nanjing Normal University and also president of the university's publishing house, told the Global Times. It also shows that original picture books, rooted in Chinese tradition and told with Eastern aesthetics, are fully capable of earning global recognition, Zhang added.
Zhang noted that for a long time, the Chinese children's book market was dominated by foreign imports, and local authors often struggled with the anxiety of imitating Western works. At 80, Cai has set a striking example for the industry with her use of ink-and-wash folk art, proving that the more grounded in national culture a work is, the wider its global reach. This has inspired greater confidence among local creators and encourages more people to focus on traditional Chinese culture, while paving the way for Chinese children's books to go global.
"Cai's achievement is no accident. It marks the moment when Chinese children's books truly found their own voice on the world stage," Zhang said.
。他们从一种被称为Lemna japonica的现有浮萍开始，向其添加了多个基因，这些基因已经被认为可以驱动其他植物的燃料生产和储存。在被描述为推/拉/保护效应中，其中一个基因推动（增加）脂肪酸的生产，其中一个基因将这些脂肪酸拉（组装）成三酰甘油油，另一个基因通过在植物组织中涂抹油滴来保护它们免受环境的降解。因此，工程浮萍积累的油几乎占其干重生物量的10%，据说这比该植物的野生对应物的积累率增加了100倍。它的油产量是当今最大的生物柴油来源大豆的7倍以上。然而，与大豆不同的是，浮萍作物不会占用农田，因为它们将被种植在大型容器或池塘中。事实上，科学家们建议，浮萍作物可以种植在养猪场和家禽场的液体废物径流中，这些植物将通过从水中吸取多余的营养物质来帮助清理。一个挑战在于，通常情况下，推动脂肪酸生产的基因也会阻碍植物生长。为了解决这个问题，"推动"基因与另一个被称为启动子的基因配对，后者通过向水中添加一种特定的化学诱导剂而被激活。首席科学家，布鲁克海文生物化学家John Shanklin说：“加入这个启动子可以使推动基因保持关闭，直到我们加入诱导剂，这使得植物在我们开启脂肪酸/石油生产之前可以正常生长。”研究人员现在正在研究种植浮萍并从中提取商业规模的油的方法。关于这项研究的一篇论文最近发表在《植物生物技术杂志》上。

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