Nitrogenase divarication with histological attributes distinctive for glycosylated aerial stem nodules and nitrosylated root nodules of sesbania

Autor:	T. R. Ansman, J. Q. Lynd
Rok vydání:	1992
Předmět:	Root nodule biology Physiology food and beverages Sesbania Nitrogenase Nodule (medicine) biology.organism_classification Sesbania rostrata Botany medicine Nitrogen fixation Rhizobium medicine.symptom Soil fertility Agronomy and Crop Science
Zdroj:	Journal of Plant Nutrition. 15:275-292
ISSN:	1532-4087 0190-4167
DOI:	10.1080/01904169209364319
Popis:	Exceptional symbiotic nitrogen fixation with Sesbania has provided high soil fertility for many past centuries of paddy rice production. Unique stem nodulation results in high nitrogenase activity levels of S. rostrata, Brem, during rapid growth in continuously flooded rice fields that greatly disfavor legume root nodulation and this functional development. The objective of this study was to determine plant nutrient interactions that influence contrasting root and aerial stem nodule histology governing effective nitrogenase activity levels and nitrogen fixation. Top growth, nodulation, and nitrogenase activity levels were significantly increased with increased available soil P. Response to K levels and Ca additions resulted only when soil P was adequate in all treatment combinations. However, there was no significant correlation between fresh nodule weight, nitrogenase activity, and nodules plant‐1 for both root nodules and aerial stem nodules. Nodule histology was highly contrastive with nodule ...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::01c134a981dfc8c7a9442dd907cbd17d https://doi.org/10.1080/01904169209364319 Zobrazit plný text záznamu