Results 91 to 100 of about 28,179 (272)

Salicylic acid mediated changes in growth, photosynthesis, nitrogen metabolism and antioxidant defense system in Cicer arietinum L.

Plant, Soil and Environment, 2012
The present study reveals that the foliar application of salicylic acid (SA), irrespective of the concentration used, generated an increase of dry mass per plant, nodule dry mass and leghemoglobin content in chickpea plants.
Q. Hayat, S. Hayat, M.N. Alyemeni, A. Ahmad   +3 more
doaj   +1 more source

An Alliance of Trifolium repens—Rhizobium leguminosarum bv. trifolii—Mycorrhizal Fungi From an Old Zn-Pb-Cd Rich Waste Heap as a Promising Tripartite System for Phytostabilization of Metal Polluted Soils

Frontiers in Microbiology, 2022
The Bolesław waste heap in South Poland, with total soil Zn concentrations higher than 50,000 mg kg–1, 5,000 mg Pb kg–1, and 500 mg Cd kg–1, is a unique habitat for metallicolous plants, such as Trifolium repens L.
Ewa Oleńska, Wanda Małek, Marzena Sujkowska-Rybkowska, Sebastian Szopa, Tadeusz Włostowski, Olgierd Aleksandrowicz, Izabela Swiecicka, Izabela Swiecicka, Małgorzata Wójcik, Sofie Thijs, Jaco Vangronsveld, Jaco Vangronsveld   +11 more
doaj   +1 more source

Transition Metal‐Based Materials for Electrochemical and Photoelectrochemical Carbon‐Free Nitrogen Cycling as H‐Carrier

Exploration, EarlyView.
This review summarizes the recent advanced progress of transition metal‐based catalysts used for electrochemical and photoelectrochemical ammonia synthesis and decomposition for hydrogen generation. The conclusion encapsulates the current challenges and prospects for the exploration of transition metal‐based materials in green ammonia conversion ...
Yuankai Li, Qian Lei, Won Tae Hong, Xinghui Liu, Chenyang Xue, Jung Kyu Kim   +5 more
wiley   +1 more source

Nitrogenase's Nascence [PDF]

Science, 2011
Evolution![Figure][1] CREDIT: DR. RACHEL A. FOSTER On early Earth, abiotic processes formed the initial supply of fixed (bioavailable) nitrogen necessary to maintain basic metabolic functions. As life began to flourish, this supply probably couldn't meet demand, and evolutionary pressures selected for a means of biological nitrogen fixation. How did
openaire   +2 more sources

How Close We Are to Achieving Commercially Viable Large-Scale Photobiological Hydrogen Production by Cyanobacteria: A Review of the Biological Aspects

Life, 2015
Photobiological production of H2 by cyanobacteria is considered to be an ideal source of renewable energy because the inputs, water and sunlight, are abundant. The products of photobiological systems are H2 and O2; the H2 can be used as the energy source
Hidehiro Sakurai, Hajime Masukawa, Masaharu Kitashima, Kazuhito Inoue   +3 more
doaj   +1 more source

Marine Algae‐Derived Bioactives: A Sustainable Resource for the Food and Agriculture Industries

Food Frontiers, EarlyView.
Algae are widely used in food and agriculture due to their bioactive compounds and are an eco‐friendly natural preservative and low carbon farming method. However, the problems regarding safety and acceptance still remain as tools like nanotechnology make improvements.
Sara Chadorshabi, Maryam Mohammadi, Ehsan Shamloo, Maryam Mahmoudzadeh   +3 more
wiley   +1 more source

Formation of NifA-PII complex represses ammonium-sensitive nitrogen fixation in diazotrophic proteobacteria lacking NifL

Cell Reports
Summary: Biological nitrogen fixation catalyzed by nitrogenase contributes greatly to the global nitrogen cycle. Nitrogenase expression is subject to regulation in response to nitrogen availability.
Yan Zeng, Lu Guo, Yongqiang Gao, Lingwei Cui, Mengmei Wang, Lu Huang, Mingyue Jiang, Ying Liu, Yaxin Zhu, Hua Xiang, De-Feng Li, Yanning Zheng   +11 more
doaj   +1 more source

Liebig Review: Legume–Rhizobium Symbiosis Under Selenium Fertilization: A Unique Dual Function in the Plant–Soil System

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background Selenium (Se) plays a vital role as a beneficial element in promoting the production of leguminous plants. It influences legume quality by improving crop nutritive value and contributing to human and animal health. Literature Review This review is timely, as there are gaps in understanding Se–rhizobia interactions in legumes, which ...
Muna Ali Abdalla, Saad Sulieman, Karl Hermann Mühling   +2 more
wiley   +1 more source

Two distinct ferredoxins are essential for nitrogen fixation by the iron nitrogenase in Rhodobacter capsulatus

mBio
Nitrogenases are the only enzymes able to fix gaseous nitrogen into bioavailable ammonia and hence are essential for sustaining life. Catalysis by nitrogenases requires both a large amount of ATP and electrons donated by strongly reducing ferredoxins or ...
Holly Addison, Timo Glatter, Georg K. A. Hochberg, Johannes G. Rebelein   +3 more
doaj   +1 more source

Interactive effects of stoichiometry and environmental variability regulate cyanobacteria toxicity in two eutrophic bays

Limnology and Oceanography, EarlyView.
Abstract Cyanobacteria blooms are a leading threat to water quality globally. Despite this, the timing and frequency of toxin production associated with harmful blooms are not well understood. Here we explore cyanobacteria bloom dynamics and cyanotoxin production in two heavily instrumented shallow, eutrophic bays of Lake Champlain through the lens of ...
Katelynn E. Warner, Andrew W. Schroth, Megan Petrine, Alex Bernich, Nicole D. Wagner, Bofan Wei, Gregory L. Boyer, Ana M. Morales   +7 more
wiley   +1 more source