Cobalt: An Essential Micronutrient for Plant Growth?
| العنوان: | Cobalt: An Essential Micronutrient for Plant Growth? |
|---|---|
| المؤلفون: | Jie Ling, Xiu Hu, Jianjun Chen, Xiangying Wei |
| المصدر: | Frontiers in Plant Science, Vol 12 (2021) Frontiers in Plant Science |
| بيانات النشر: | Frontiers Media S.A., 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | endophytes, Plant Science, Review, Rhizobia, SB1-1110, Symbiosis, Botany, Vitamin B12, Iron deficiency (plant disorder), cobalamin, chemistry.chemical_classification, biology, fungi, food and beverages, Plant culture, vitamin B12, Micronutrient, biology.organism_classification, essential nutrients, cobalt, symbiosis, chemistry, transporter, micronutrients, Diazotroph, Essential nutrient, Bacteria |
| الوصف: | Cobalt is a transition metal located in the fourth row of the periodic table and is a neighbor of iron and nickel. It has been considered an essential element for prokaryotes, human beings, and other mammals, but its essentiality for plants remains obscure. In this article, we proposed that cobalt (Co) is a potentially essential micronutrient of plants. Co is essential for the growth of many lower plants, such as marine algal species including diatoms, chrysophytes, and dinoflagellates, as well as for higher plants in the familyFabaceaeorLeguminosae. The essentiality to leguminous plants is attributed to its role in nitrogen (N) fixation by symbiotic microbes, primarily rhizobia. Co is an integral component of cobalamin or vitamin B12, which is required by several enzymes involved in N2fixation. In addition to symbiosis, a group of N2fixing bacteria known as diazotrophs is able to situate in plant tissue as endophytes or closely associated with roots of plants including economically important crops, such as barley, corn, rice, sugarcane, and wheat. Their action in N2fixation provides crops with the macronutrient of N. Co is a component of several enzymes and proteins, participating in plant metabolism. Plants may exhibit Co deficiency if there is a severe limitation in Co supply. Conversely, Co is toxic to plants at higher concentrations. High levels of Co result in pale-colored leaves, discolored veins, and the loss of leaves and can also cause iron deficiency in plants. It is anticipated that with the advance of omics, Co as a constitute of enzymes and proteins and its specific role in plant metabolism will be exclusively revealed. The confirmation of Co as an essential micronutrient will enrich our understanding of plant mineral nutrition and improve our practice in crop production. |
| اللغة: | English |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f241852c13c07a52f004312bff96afeTest https://www.frontiersin.org/articles/10.3389/fpls.2021.768523/fullTest |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....6f241852c13c07a52f004312bff96afe |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |