نتایج جستجو برای: toxicity to plants

تعداد نتایج: 10694236  

Journal: :Journal of experimental botany 2006
Wei Deng Keming Luo Demou Li Xuelian Zheng Xiaoyang Wei William Smith Chandra Thammina Litang Lu Yi Li Yan Pei

Aluminium (Al) toxicity is the most important limiting factor for crop production in acid soil environments worldwide. In some plant species, application of magnesium (Mg(2+)) can alleviate Al toxicity. However, it remains unknown whether overexpression of magnesium transport proteins can improve Al tolerance. Here, the role of AtMGT1, a member of the Arabidopsis magnesium transport family invo...

2017
Cheng Zhou Lin Zhu Zhongyou Ma Jianfei Wang

Without physical contact with plants, certain plant growth-promoting rhizobacteria (PGPR) can release volatile organic compounds (VOCs) to regulate nutrient acquisition and induce systemic immunity in plants. However, whether the PGPR-emitted VOCs can induce cadmium (Cd) tolerance of plants and the underlying mechanisms remain elusive. In this study, we probed the effects of Bacillus amylolique...

Journal: :International Journal of Molecular Sciences 2019

Most plant species are sensitive to high ammonium concentrations. In this experiment the sensitivity of lettuce and spinach to ammonium was investigated. In a factorial experiment with framework of a completely randomized design with two factors, nitrogen form (ammonium and nitrate) and plant species (lettuce and spinach), and three replications seeds were germinated in a mixture of perlite, sa...

1998
JAMES F. FAIRCHILD D. SHANE RUESSLER

This study determined the relative sensitivity of five species of aquatic macrophytes and six species of algae to four commonly used herbicides (atrazine, metribuzin, alachlor, and metolachlor). Toxicity tests consisted of 96-h (duckweed and algae) or 14-d (submerged macrophytes) static exposures. The triazine herbicides (atrazine and metribuzin) were significantly more toxic to aquatic plants ...

Journal: :research journal of pharmacognosy 0
a. ziaei department of traditional pharmacy, school of traditional medicine, shahid beheshti university of medical sciences, tehran, iran. s. sahranavard department of traditional pharmacy, school of traditional medicine, shahid beheshti university of medical sciences, tehran, iran. traditional medicine and materia medica research center, shahid beheshti university of medical sciences, tehran, iran. m. faizi department of pharmacology and toxicology, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran.

joint pain is one of the most common complaints with many possible causes.some medicines used for joint pain relief such as nsaids have substantial and frequent side effects. topical route possibly reduces adverse reactions by maximizing local delivery and minimizing systemic toxicity. throughout history, plants have been the most important sources of medicines for human health and iranian trad...

Journal: :علوم باغبانی ایران 0
سارا خراسانی نژاد عبدالکریم کاشی سید محمد فخر طباطبایی

some crops have been observed to posses effects of allelopathic type. it would be interesting and useful as well to study these plants' allelopathic effects on other crop plants, particularly in rotation and intercropping. so, in this study, the allelopathic potential of cucumber organs' extract on seedling growth of cucumber, eggplant, pepper, and tomato was evaluated using a randomi...

2015
Anofi Omotayo Tom Ashafa Mutiu Idowu Kazeem

Background. Dianthus basuticus is a commonly used medicinal plant in Basotho traditional medicine for the treatment of diabetes, but there is no report on its safety or toxicity. Therefore, we evaluated the toxicity profile of the hydroethanol whole plant extract of Dianthus basuticus in Wistar rats. Methods. Acute toxicity test was performed with single oral administration of 100-3200 mg/kg bo...

Journal: :Plant physiology 2001
M Tesfaye S J Temple D L Allan C P Vance D A Samac

Al toxicity is a severe impediment to production of many crops in acid soil. Toxicity can be reduced through lime application to raise soil pH, however this amendment does not remedy subsoil acidity, and liming may not always be practical or cost-effective. Addition of organic acids to plant nutrient solutions alleviates phytotoxic Al effects, presumably by chelating Al and rendering it less to...

Journal: :Chemosphere 2008
I Sampedro E Aranda R Díaz M García-Sanchez J A Ocampo I García-Romera

We studied the influence of olive mill dry residue (DOR) treated with saprobe fungi on growth of tomato and alfalfa colonized by Glomus deserticola. The application of 25g kg(-1) of dry DOR to soil decreased the shoot and root dry weight of tomato and alfalfa. Plants were more sensitive to the toxicity of DOR when colonized with the arbuscular mycorrhizal (AM) fungi. The sensitivity of both pla...

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