scholarly journals Inoculation of tomato seedlings with Trichoderma Harzianum and Arbuscular Mycorrhizal Fungi and their effect on growth and control of wilt in tomato seedlings

2011 ◽  
Vol 42 (2) ◽  
pp. 508-513 ◽  
Author(s):  
Margaret W. Mwangi ◽  
Ethel O. Monda ◽  
Sheila A. Okoth ◽  
Joyce M. Jefwa
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Trichoderma Harzianum ◽  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal ◽  
Tomato Seedlings ◽  
And Control ◽  
Effect On Growth

scholarly journals Enhancement of clover growth by inoculation of P-solubilizing fungi and arbuscular mycorrhizal fungi

2010 ◽  
Vol 82 (3) ◽  
pp. 771-777 ◽  
Author(s):  
Edson L. Souchie ◽  
Rosario Azcón ◽  
Jose M. Barea ◽  
Eliane M.R. Silva ◽  
Orivaldo J. Saggin-Júnior
Keyword(s):  
Growth Rate ◽  
Aspergillus Niger ◽  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Trifolium Pratense ◽  
Arbuscular Mycorrhizal ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Environment Chamber ◽  
And Control

This study evaluated the synergism between several P-solubilizing fungi isolates and arbuscular mycorrhizal fungi to improve clover ( Trifolium pratense) growth in the presence of Araxá apatite. Clover was sown directly in plastic pots with 300g of sterilized washed sand, vermiculite and sepiolite 1:1:1 (v:v:v) as substrate, and grown in a controlled environment chamber. The substrate was fertilized with 3 g L-1 of Araxá apatite. A completely randomized design, in 8×2 factorial scheme (eight P-solubilizing fungi treatments with or without arbuscular mycorrhizal fungi)and four replicates were used. The P-solubilizing fungi treatments consisted of five Brazilian P-solubilizing fungi isolates (PSF 7, 9, 20, 21 and 22), two Spanish isolates ( Aspergillus niger and the yeast Yarowia lipolytica) and control (non-inoculated treatment). The greatest clover growth rate was recorded when Aspergillus niger and PSF 21 were co-inoculated with arbuscular mycorrhizal fungi. Aspergillus niger, PSF 7 and PSF 21 were the most effective isolates on increasing clover growth in the presence of arbuscular mycorrhizal fungi. Greater mycorrhizal colonization resulted in greater clover growth rate in most PSF treatments. PSF 7 was the best isolate to improve the establishment of mycorrhizal and rhizobia symbiosis.

scholarly journals Inoculation of cyclamen (Cyclamen persicum) and poinsettia (Euphorbia pulcherrima) with arbuscular mycorrhizal fungi and Trichoderma harzianum

2011 ◽  
Vol 48 (No. 2) ◽  
pp. 63-68
Author(s):  
M. Dubský ◽  
F. Šrámek ◽  
M. Vosátka
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Trichoderma Harzianum ◽  
Mycorrhizal Fungi ◽  
Biocontrol Agent ◽  
Arbuscular Mycorrhizal ◽  
Euphorbia Pulcherrima ◽  
Plant Mortality ◽  
Horticultural Crops ◽  
Positive Effect ◽  
Spontaneous Infection

Dual inoculation of peat based horticulture substrate with a mixture of four species of arbuscular mycorrhizal fungi and fungal biocontrol agent Trichoderma harzianum showed a significant positive effect on the growth and flowering of cyclamen plants. Inoculation substantially decreased plant mortality caused by spontaneous infection by the fungal pathogen Cryptocline cyclaminis. Plant mortality was also reduced by separate inoculation with arbuscular mycorrhizal fungi. Both separately inoculated agents positively affected the plant growth, although to a lesser extent. Very few significant effects of inoculation were observed on the growth of poinsettia plants cultivated from cuttings. Use of arbuscular mycorrhizal fungi together with the introduction of Trichoderma for inoculation of horticultural substrates is suggested to alleviate the inevitable effects of various stresses during the cultivation of horticultural crops.

scholarly journals Auxin is involved in arbuscular mycorrhizal fungi-promoted tomato growth and NADP-malic enzymes expression in continuous cropping substrates

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Yu Wang ◽  
Wenze Zhang ◽  
Weikang Liu ◽  
Golam Jalal Ahammed ◽  
Wenxu Wen ◽  
...  
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal ◽  
Organic Substrate ◽  
Convincing Evidence ◽  
Gene Set Enrichment Analysis ◽  
Continuous Cropping ◽  
Plant Tolerance ◽  
Tomato Seedlings ◽  
Tomato Growth

Abstract Background Despite significant limitations of growth medium reuse, a large amount of organic substrate is reused in soilless cultivation of horticultural crops in China. Arbuscular mycorrhizal fungi (AMF) can promote nutrient absorption and improve plant tolerance to biotic and abiotic stresses. However, the mechanisms governing the effects of AMF on crop growth in organic continuous cropping substrates have not been elucidated. Results In this study, we showed that the inoculation of AMF in continuous cropping substrates promoted growth and root development, and increased the root and NADP-malic enzyme (NADP-ME) activity of tomato seedlings. Root transcriptome analysis demonstrated that the plant hormone signal transduction pathway was highly enriched, and 109 genes that positively correlated with the AMF-inoculated plant phenotype were obtained by gene set enrichment analysis (GSEA), which identified 9 genes related to indole acetic acid (IAA). Importantly, the levels of endogenous IAA in tomato seedlings significantly increased after AMF inoculation. Furthermore, the application of AMF significantly increased the expression levels of NADP-ME1 and NADP-ME2, as well as the activity of NADP-ME, and enhanced the root activity of tomato seedlings in comparison to that observed without inoculation of AMF. However, these effects were blocked in plants treated with 2,3,5-triiodobenzoic acid (TIBA), a polar transport inhibitor of IAA. Conclusions These results suggest that IAA mediates the AMF-promoted tomato growth and expression of NADP-MEs in continuous cropping substrates. The study provides convincing evidence for the reuse of continuous cropping substrates by adding AMF as an amendment.

Sign in / Sign up

Export Citation Format

Share Document