Studies on Root-Breaking in Certain Crop Plants Caused by the Formation of IcicIe-Layer in the Ground and on Protection Methods against Them : 3. Formation of Ground-Cavity and Its Relation to the Plant Roots

1955 ◽  
Vol 23 (4) ◽  
pp. 283-284
Author(s):  
Iwao NIKKI
Keyword(s):  
Crop Plants ◽  
Plant Roots ◽  
Ground Cavity

PHOSPHATE-DISSOLVING MICROORGANISMS ON SEED AND IN THE ROOT ZONE OF PLANTS

1962 ◽  
Vol 40 (9) ◽  
pp. 1181-1186 ◽  
Author(s):  
H. Katznelson ◽  
E. A. Peterson ◽  
J. W. Rouatt
Keyword(s):  
Strong Evidence ◽  
Root Zone ◽  
Red Clover ◽  
Crop Plants ◽  
Plant Roots ◽  
Selective Effect ◽  
Cereal Seed ◽  
Percentage Incidence

A high proportion (40–70%) of the bacteria on most of the seed tested solubilized phosphate precipitated in agar; flax and red clover were two striking exceptions with 11% and 24% respectively. The percentage incidence of these bacteria was considerably lower on the roots and in the rhizosphere of four out of the five crop plants studied than on their seed, being in the order of 10%. There was no strong evidence of a selective effect of plant roots on these organisms although barley appeared to favor them and oats to repress them somewhat.Phosphate-dissolving fungi were readily isolated from seed and plant roots. Cereal seed carried surprisingly few such fungi whereas grasses and clover had greater numbers. The phosphate-dissolving fungi isolated most frequently were species of Penicillium, Aspergillus, and Rhizopus; in addition, Candida, Oidiodendron, and Pseudogymnoascus species were isolated from roots and root-free soil.

Metabolic signalling and the partitioning of resources in plant storage organs

1999 ◽  
Vol 133 (3) ◽  
pp. 243-249 ◽  
Author(s):  
NIGEL G. HALFORD
Keyword(s):  
Dry Weight ◽  
Wild Relatives ◽  
Crop Plants ◽  
Wild Plants ◽  
Young Plant ◽  
Carbon And Nitrogen ◽  
Cultivated Potato ◽  
Metabolic Signalling ◽  
Storage Organs ◽  
Plant Storage

The most important harvested organs of crop plants, such as seeds, tubers and fruits, are often described as assimilate sinks. They play little or no part in the fixation of carbon through the production of sugars through photosynthesis, or in the uptake of nitrogen and sulphur, but import these assimilated resources to support metabolism and to store them in the form of starch, oils and proteins. Wild plants store resources in seeds and tubers to later support an emergent young plant. Cultivated crops are effectively storing resources to provide us with food and many have been bred to accumulate much more than would be required otherwise. For example, approximately 80% of a cultivated potato plant's dry weight is contained in its tubers, ten times the proportion in the tubers of its wild relatives (Inoue & Tanaka 1978). Cultivation and breeding has brought about a shift in the partitioning of carbon and nitrogen assimilate between the organs of the plant.

Stimulatory effects of smoke and smoke-derived butenolide on crop plants

Planta Medica ◽  
2008 ◽  
Vol 74 (09) ◽  
Author(s):  
J Van Staden ◽  
MG Kulkarni ◽  
GD Ascough ◽  
ME Light
Keyword(s):  
Crop Plants

Toxic Substances in Crop Plants

1991 ◽  
Author(s):  
J. P. F. D'Mello ◽  
Carol M. Duffus ◽  
John H. Duffus
Keyword(s):  
Crop Plants ◽  
Toxic Substances

Acute and chronic toxicity studies on Polygonum glabrum in experimental animals

2020 ◽  
Vol 3 (1) ◽  
pp. 7-10
Author(s):  
Saravanakumar A ◽  
Gandhimathi R
Keyword(s):  
Chronic Toxicity ◽  
Clinical Stage ◽  
Herbal Medicines ◽  
Plant Roots ◽  
Root Extract ◽  
Experimental Animals ◽  
Toxicity Studies ◽  
Acute And Chronic Toxicity ◽  
Diuretic Agents

Polygonum glabrum is being used in traditional and folklore medicine to treat pneumonia and jaundice. Plant roots are used in ayurvedic preparations to treat fever and colic. The leaves are used as diuretic agents and process vermifuge action. Plant decoction is also used in the treatment of Rheumatism. Besides having many uses and folklore claims, herbal medicines are to be thoroughly investigated for their toxicity also. Therefore this work is being carried out to examine the toxicity of the drug and established dose is safe to use in the clinical stage. The current research studied the acute and chronic toxicity of Polygonum glabrum root extract in rats. It is proved that there was no change in any parameter tested both in acute and chronic toxicity, which means the extract is safe and non-toxic at the dose of 2g/kg also.

Management of root rot fungi by Grewia asiatica L. leaves and on the growth of crop plants

2019 ◽  
Vol 52 (2) ◽  
Author(s):  
Shahnaz Dawar ◽  
Asma Hanif ◽  
Rukkiya Siddique
Keyword(s):  
Root Rot ◽  
Crop Plants

Effect of 24-epibrassinolide on localization of ABA, AZP, and dehydrins in wheat plant roots during dehydration

Biomics ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 329-336
Author(s):  
A.R. Lubyanova ◽  
F.M. Shakirova ◽  
M.V. Bezrukova
Keyword(s):  
Triticum Aestivum ◽  
Wheat Germ ◽  
Wheat Plant ◽  
Triticum Aestivum L ◽  
Immunohistochemical Localization ◽  
Plant Roots ◽  
Wheat Roots ◽  
Wheat Seedlings ◽  
Apoplastic Barrier ◽  
Protective Proteins

We studied the immunohistochemical localization of abscisic acid (ABA), wheat germ agglutinin (WGA) and dehydrins in the roots of wheat seedlings (Triticum aestivum L.) during 24-epibrassinolide-pretreatment (EB-pretreatment) and PEG-induced dehydration. It was found coimmunolocalization of ABA, WGA and dehydrins in the cells of central cylinder of basal part untreated and EB-pretreated roots of wheat seedlings under normal conditions and under osmotic stress. Such mutual localization ABA and protective proteins, WGA and dehydrins, indicates the possible effect of their distribution in the tissues of EB-pretreated wheat roots during dehydration on the apoplastic barrier functioning, which apparently contributes to decrease the water loss under dehydration. Perhaps, the significant localization of ABA and wheat lectin in the metaxylem region enhances EB-induced transport of ABA and WGA from roots to shoots under stress. It can be assumed that brassinosteroids can serve as intermediates in the realization of the protective effect of WGA and wheat dehydrins during water deficit.

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