scholarly journals The Allelopathic Potential of <i>Conocarpus lancifolius</i> (Engl.) Leaves on Dicot (<i>Vigna sinensis</i> L.), Monocot (<i>Zea mays</i> L.) and Soil-Borne Pathogenic Fungi

2014 ◽  
Vol 05 (19) ◽  
pp. 2889-2903 ◽  
Author(s):  
Aisha H. Al-Shatti ◽  
Amina Redha ◽  
Patrice Suleman ◽  
Redha Al-Hasan
Keyword(s):  
Zea Mays ◽  
Pathogenic Fungi ◽  
Vigna Sinensis ◽  
Allelopathic Potential

Seaweed extracts as prospective plant growth bio-stimulant and salinity stress alleviator for Vigna sinensis and Zea mays

2021 ◽  
Author(s):  
Mervat H. Hussein ◽  
Eladl Eltanahy ◽  
Alaa Fathy Al Bakry ◽  
Nesrein Elsafty ◽  
Maha M. Elshamy
Keyword(s):  
Zea Mays ◽  
Plant Growth ◽  
Salinity Stress ◽  
Vigna Sinensis ◽  
Seaweed Extracts

Kinetin regulation of growth and secondary metabolism in waterlogging and salinity treated Vigna sinensis and Zea mays

2002 ◽  
Vol 24 (1) ◽  
pp. 19-27 ◽  
Author(s):  
Mamdouh M. Nemat Alla ◽  
Mahmoud E. Younis ◽  
Omar A. El-Shihaby ◽  
Zeinab M. El-Bastawisy
Keyword(s):  
Zea Mays ◽  
Secondary Metabolism ◽  
Vigna Sinensis ◽  
Regulation Of Growth

scholarly journals Cell-cell recognition of host surfaces by pathogens. The adsorption of maize (Zea mays) root mucilage by surfaces of pathogenic fungi

1986 ◽  
Vol 233 (2) ◽  
pp. 395-405 ◽  
Author(s):  
J Gould ◽  
D H Northcote
Keyword(s):  
Zea Mays ◽  
Pathogenic Fungi ◽  
Fungal Species ◽  
Ionic Interactions ◽  
Cell Recognition ◽  
Vascular Wilt ◽  
Adsorption Capacities ◽  
Bivalent Cations ◽  
Root Mucilage ◽  
Fungal Adhesins

The adsorption of radioactive mucilage by pathogenic fungi was shown to be dependent upon time, the composition of mucilage, the type of fungal surface (conidia, hyphae, hyphal apices), fungal species, pH and bivalent cations. All fungal adhesins were inactivated by either proteinase or polysaccharase treatments. Adsorption was not inhibited by the numberous mono-, di- and oligo-saccharides that were tested individually, but it was inhibited absolutely by several polysaccharides. This suggested that adsorption of mucilage by pathogens involved conformational and ionic interactions between plant and fungal polymers but not fungal lectins bound to sugar residues of mucilage. Several fractionation schemes showed that pathogens bound only the most acidic of the variety of polymers that comprise mucilage. There was not any absolute distinction between ability to bind radioactive mucilage and type of pathogen or non-pathogen. However, there were notable differences in characteristics of adsorption between two types of pathogen. Differences were revealed by comparison of the adsorption capacities of conidia and germinant conidia and chromatography of radioactive mucilage on germinant conidia. An ectotrophic root-infecting fungus (a highly specialized pathogen) bound a greater proportion of mucilage than did a vascular-wilt fungus (of catholic host and tissue range) with more than one class of site for adsorption. In contrast with the vascular-wilt fungus, sites for adsorption on the specialized pathogen were present solely on surfaces formed by germination.

scholarly journals Allelopathic Potential of Papaver Somniferum L. on Seed Germination Against Three Different Varities of Zea Mays

2021 ◽  
Author(s):  
Muntaha Tul Sidra ◽  
SAYEDA SARAH MUBARAK ◽  
FATIMA KHAN SHERWANI ◽  
NAZMA AZEEM
Keyword(s):  
Zea Mays ◽  
Aqueous Extract ◽  
Water Extract ◽  
Inhibitory Effect ◽  
Papaver Somniferum ◽  
Hot Water ◽  
Allelopathic Effect ◽  
Inhibitory Effects ◽  
Allelopathic Potential ◽  
Hot Water Extract

Abstract Aims To evaluate the allelopathic effect of Papaver somniferum against the 3 varieties of Zea mays seeds cv. Azam, Pahari and Iqbal. Methods Aqueous extracts were made by soaking the powder of dried leaves of Papaver somniferum. For the aqueous extract treatment, the extract was soaked in distilled water for 24 and 48 hours separately. For mulching treatment, the seeds were sowed in soil and sprinkled powder of leaves. For litter, the petri dishes were grounded with randomly cut pieces of filter paper wetted with extract. For hot water treatment the water was boiled for 5 minutes. The powder was then mixed in boil water. Results Azam got effected in 24h extract in aqueous extract treatment while Pahari in 48h treatment. In mulching all the three varieties got inhibited by extract. Azam showed resistance toward the inhibitory effect of extract in litter experiments. Iqbal was affected in hot water extract. Conclusion It is concluded that the extracts obtained from Papaver somniferum showed inhibitory effects on all the three varieties except few exceptions of maize. The plumule and radical growth got affected the most.

Effect of Kinetin on Photosynthetic Activity and Carbohydrate Content in Waterlogged or Seawater Treated Vigna sinensis and Zea mays

2001 ◽  
Vol 1 (10) ◽  
pp. 918-924 ◽  
Author(s):  
Mamdouh M. Nemat All . ◽  
Mahmoud E. Younis . ◽  
Omar A. El-shihaby . ◽  
Zeinab M. El-Bastawi .
Keyword(s):  
Zea Mays ◽  
Photosynthetic Activity ◽  
Carbohydrate Content ◽  
Vigna Sinensis

scholarly journals Suppression of Maize (Zea mays) Seedling Growth by Invasive Alligatorweed (Alternanthera philoxeroides) Residues

2018 ◽  
Vol 35 (0) ◽  
Author(s):  
M. NADEEM ◽  
A. TANVEER ◽  
A. KHALIQ ◽  
G. MURTAZA
Keyword(s):  
Zea Mays ◽  
Seedling Growth ◽  
Water Soluble ◽  
Alternanthera Philoxeroides ◽  
Control Treatment ◽  
Plant Residues ◽  
Seedling Vigor ◽  
Maize Crop ◽  
Allelopathic Potential ◽  
Vigor Index

ABSTRACT: To investigate the allelopathic influence of soil incorporated plant residues of alligatorweed on emergence and seedling growth of maize (Zea mays), an experiment was conducted under laboratory conditions in the 2014-15 period. The effect of soil amended with whole plant residues of alligatorweed at different concentrations (1, 2, 3, 4 and 5% on w/w basis) was compared with residue free soil (control). Emergence traits, such as emergence percentage, time to 50% emergence, mean emergence time and emergence index were negatively influenced by weed residue incorporation as compared with weed residue free soil. Alligatorweed residues also exerted a pronounced negative influence on root and shoot lengths, root and shoot dry weights and seedling vigor index of the maize crop. The results revealed that the inhibitory effect was directly proportional to the increasing concentrations (1, 2, 3, 4 and 5%) of the weed residues as compared to control treatment. It was observed that soil infested with 4% and 5% residues of alligatorweed caused a maximum reduction in emergence (76-87%), root and shoot lengths (58-73% and 42-61%), root and shoot dry weights (49-58% and 40-48%) and seedling vigor index (87-95%) of the maize crop. Chlorogenic acid, ferulic acid, 4-hydroxy-3-methoxybenzoic acid, trans-4-hydroxy 3-methoxy cinnamic acid, gallic acid, p-coumaric acid, querceitin and syringic acid were identified as water soluble phenolics in alligatorweed residue soil saturated solution. This study indicates that the allelopathic potential of alligatorweed may play an important role in suppressing maize seedling growth.

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