4.8 Article

The digestive systems of carnivorous plants

期刊

PLANT PHYSIOLOGY
卷 190, 期 1, 页码 44-59

出版社

OXFORD UNIV PRESS INC
DOI: 10.1093/plphys/kiac232

关键词

-

资金

  1. Sofja Kovalevskaja Program of the Alexander von Humboldt Foundation
  2. Deutsche Forschungsgemeinschaft (DFG) Individual Research Grants [454506241]
  3. Human Frontier Science Program (HFSP) Young Investigators Grant [RGY0082/2021]
  4. US National Science Foundation [DEB-2030871]
  5. DFG Reinhart Koselleck grant [415282803]
  6. US Department of Agriculture National Institute of Food and Agriculture Postdoctoral Research Fellowship [2019-67012-29872]
  7. JEOL [JSM-7500F]
  8. DFG [218894895, INST 93/761-1 FUGG]

向作者/读者索取更多资源

To survive in nutrient-poor environments, carnivorous plants have developed traps analogous to animal digestive systems to capture and digest small organisms. These traps modify plant-specific organs, such as leaves, to acquire the ability to break down and absorb nutrients. Digestive glands in carnivorous plants secrete enzymes and other substances to digest prey, while absorbing the released compounds for nutrient uptake.
To survive in the nutrient-poor habitats, carnivorous plants capture small organisms comprising complex substances not suitable for immediate reuse. The traps of carnivorous plants, which are analogous to the digestive systems of animals, are equipped with mechanisms for the breakdown and absorption of nutrients. Such capabilities have been acquired convergently over the past tens of millions of years in multiple angiosperm lineages by modifying plant-specific organs including leaves. The epidermis of carnivorous trap leaves bears groups of specialized cells called glands, which acquire substances from their prey via digestion and absorption. The digestive glands of carnivorous plants secrete mucilage, pitcher fluids, acids, and proteins, including digestive enzymes. The same (or morphologically distinct) glands then absorb the released compounds via various membrane transport proteins or endocytosis. Thus, these glands function in a manner similar to animal cells that are physiologically important in the digestive system, such as the parietal cells of the stomach and intestinal epithelial cells. Yet, carnivorous plants are equipped with strategies that deal with or incorporate plant-specific features, such as cell walls, epidermal cuticles, and phytohormones. In this review, we provide a systematic perspective on the digestive and absorptive capacity of convergently evolved carnivorous plants, with an emphasis on the forms and functions of glands. A comparison of the forms and functions of digestive and absorptive glands in carnivorous plants sheds light on their convergent evolution.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.8
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据