نتایج جستجو برای: root fractions

تعداد نتایج: 193303  

Journal: :Plant physiology 1968
P J Kuiper

Ion transport properties of grape root lipids were measured as liquid-membrane permeability. Phosphatidylcholine exchanged chloride very slowly against carbonate and bicarbonate but more rapidly against nitrate, phosphate, and sulfate. Exchange of chloride against nitrate was rather low for the phosphatidylcholine and phosphatidylethanolamine lipid fractions; monogalactose diglyceride was by fa...

Journal: :Plant physiology 1981
D A Cataldo T R Garland R E Wildung

The distribution and chemical behavior of Cd(2+) in tissues and its chemical form in xylem water of soybean plants (cv. Williams) were investigated. Following root absorption, Cd is strongly retained by roots, with only 2% of the accumulated Cd being transported to leaves; as much as 8% was transported to seeds during seed filling. In vivo xylem exudates contained two anionic Cd complexes in ad...

2001
JAMES K. NITAO SUSAN L. F. MEYER WALTER F. SCHMIDT JAMES C. FETTINGER DAVID J. CHITWOOD

A strain of the fungus Fusarium equiseti isolated from soybean cyst nematode secretes nematode-antagonistic compounds. Bioassay-guided fractionation of an extract of the culture broth was undertaken to identify the compounds. Fractions were assayed for activity against a root-knot nematode (Meloidogyne incognita), a plant pathogen that attacks the roots of numerous plant species. Two trichothec...

Journal: :Bioscience, biotechnology, and biochemistry 2009
Xiaonan Xie Kaori Yoneyama Jun-ya Kurita Yuta Harada Yoichi Yamada Yasutomo Takeuchi Koichi Yoneyama

Germination stimulants for root parasitic plants produced by flax (Linum usitatissimum L.) were purified and characterized. The root exudate of flax contained at least 8 active fractions, and liquid chromatography-tandem mass spectrometry (LC-MS/MS) and gas chromatography mass spectrometry (GC-MS) analyses suggested that there were 6 strigolactones. Two of them were identified as orobanchol and...

Journal: :Journal of agricultural and food chemistry 2013
Soumya Maity Suchandra Chatterjee Prasad Shekhar Variyar Arun Sharma Soumyakanti Adhikari Santasree Mazumder

The antioxidant property of the 70% aqueous ethanol extract of Phyllanthus amarus roots and its ether-soluble, ethyl acetate-soluble, and aqueous fractions were investigated by various in vitro assays. The root extracts showed higher DPPH, hydroxyl, superoxide, and nitric oxide radical scavenging and reducing power activity. Among all the samples, the ethyl acetate-soluble fraction demonstrated...

2014
Muhammad Imran Nasir Rasool Komal Rizwan Muhammad Zubair Muhammad Riaz Muhammad Zia-Ul-Haq Usman Ali Rana Ayman Nafady Hawa ZE Jaafar

BACKGROUND Current study has been designed to estimate the possible antioxidant, antimicrobial and hemolytic potential of Ficus benjamina different parts (leaves, stem and root). RESULTS All examined extracts and fractions were significantly rich in antioxidants and exhibited potent antimicrobial activity. GC/MS analysis of essential oil identified four compounds in stem and eight compounds i...

Journal: :Indian Journal of Pharmaceutical Sciences 2022

This study aimed to evaluate and correlate phytochemical content, antioxidant activity alpha-amylase inhibitory in aqueous acetone extract fractions derived from it (ethyl acetate fraction, watersoluble methanol fraction fraction) which are obtained Ampelocissus martini Planch. root. Ethyl had the highest total phenolic content proanthocyanidin respectively. 2,2-diphenyl-1-picrylhydrazyl, 2,2'-...

Journal: :Journal of nematology 1999
J K Nitao S L Meyer D J Chitwood

In-vitro methods were developed to test fungi for production of metabolites affecting nematode egg hatch and mobility of second-stage juveniles. Separate assays were developed for two nematodes: root-knot nematode (Meloidogyne incognita) and soybean cyst nematode (Heterodera glycines). For egg hatch to be successfully assayed, eggs must first be surface-disinfested to avoid the confounding effe...

Journal: :Phytopathology 2009
A A Bacetty M E Snook A E Glenn J P Noe N Hill A Culbreath P Timper P Nagabhyru C W Bacon

ABSTRACT Neotyphodium coenophialum, an endophytic fungus associated with tall fescue grass, enhances host fitness and imparts pest resistance. This symbiotum is implicated in the reduction of stresses, including plant-parasitic nematodes. To substantiate this implication, toxicological effects of root extracts, polyphenolic fraction, ergot, and loline alkaloids from endophyte-infected tall fesc...

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