Field microenvironments regulate crop diel transcript and metabolite rhythms

Field microenvironments regulate crop diel transcript and metabolite rhythms

© 2021 The Authors. New Phytologist © 2021 New Phytologist Foundation.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 232(2021), 4 vom: 27. Nov., Seite 1738-1749
1. Verfasser: Dantas, Luíza Lane Barros (VerfasserIn)
Weitere Verfasser: Dourado, Maíra Marins, de Lima, Natalia Oliveira, Cavaçana, Natale, Nishiyama, Milton Yutaka Jr, Souza, Glaucia Mendes, Carneiro, Monalisa Sampaio, Caldana, Camila, Hotta, Carlos Takeshi
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Saccharum hybrid circadian clock crops field experiments microenvironments shading sugarcane
Beschreibung
Zusammenfassung:© 2021 The Authors. New Phytologist © 2021 New Phytologist Foundation.
Most research in plant chronobiology has been done in laboratory conditions. However, laboratories usually fail to mimic natural conditions and their slight fluctuations, highlighting or obfuscating rhythmicity. High-density crops, such as sugarcane (Saccharum hybrid), generate field microenvironments with specific light and temperature regimes resulting from mutual shading. We measured the metabolic and transcriptional rhythms in the leaves of 4-month-old (4 mo) and 9 mo field-grown sugarcane. Most of the assayed rhythms in 9 mo sugarcane peaked >1 h later than in 4 mo sugarcane, including rhythms of the circadian clock gene, LATE ELONGATED HYPOCOTYL (LHY). We hypothesized that older sugarcane perceives dawn later than younger sugarcane as a consequence of self-shading. As a test, we measured LHY rhythms in plants on the east and the west sides of a field. We also tested if a wooden wall built between lines of sugarcane plants changed their rhythms. The LHY peak was delayed in the plants in the west of the field or beyond the wall; both shaded at dawn. We conclude that plants in the same field may have different phases resulting from field microenvironments, impacting important agronomical traits, such as flowering time, stalk weight and number
Beschreibung:Date Completed 27.10.2021
Date Revised 27.10.2021
published: Print-Electronic
GENBANK: GSE129543, GSE171222
Citation Status MEDLINE
ISSN:1469-8137
DOI:10.1111/nph.17650