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Funding support was provided from USDA-NIFA Multistate Project W4147, the New Jersey Agricultural Experiment Station, and from a Cooperative Ecosystems Studies Unit CESU G16AC00433 grant between Rutgers University and the U.S. Geological Survey for control of invasive Phragmites australis , and Rey Juan Carlos University, grant DR & Iacute;ADES-2020/00006/009. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

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Endophytic bacteria in grass crop growth promotion and biostimulation

Publicado en:Grass Research. 1 0005- - 2021-01-01 1(), DOI: 10.48130/GR-2021-0005

Autores: White, James F; Chang, Xiaoqian; Kingsley, Kathryn L; Zhang, Qiuwei; Chiaranunt, Peerapol; Micci, April; Velazquez, Fernando; Elmore, Matthew; Crane, Sharron; Li, Shanjia; Lu, Jiaxin; Molina, Maria Carmen; Gonzalez-Benitez, Natalia; Beltran-Garcia, Miguel J; Kowalski, Kurt P

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Resumen

Plants naturally carry microbes on seeds and within seeds that may facilitate development and early survival of seedlings. Some crops have lost seed-vectored microbes in the process of domestication or during seed storage and seed treatment. Biostimulant microbes from wild plants were used by pre-modern cultures to re-acquire beneficial seed microbes. Today some companies have developed or are developing the use of microbes obtained from soils or plant sources to stimulate plant development and growth. Many of these biostimulant microbes are endophytic in plants. Biostimulant products also include humic substances, which appear to function as signal molecules in plants, triggering increased internalization of soil microbes into root cells and tissues. In addition, protein coatings on seeds fuel the growth of seed surface-vectored microbes, increasing microbial activity around and within roots. In this article, we provide evidence of the endophytic nature of many biostimulant microbes, and suggest that many of the beneficial effects of microbial biostimulants stem from their action as endophytes or as participants or stimulants of rhizophagy cycle activity.

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