Nematode

Pro domain peptide of HGCP-Iv cysteine proteinase inhibits nematode cysteine proteinases

F. B. Silva, Batista, J. A. N., Marra, B. M., Fragoso, R. R., Monteiro, A. Carolina S., Figueira, E. L. Z., and Grossi-de-Sá, M. Fátima, Pro domain peptide of HGCP-Iv cysteine proteinase inhibits nematode cysteine proteinases, vol. 3, pp. 342-355, 2004.

Cysteine proteinases (CPs) are synthesized as zymogens and converted to mature proteinase forms by proteolytic cleavage and release of their pro domain peptides. A cDNA encoding a papain-like CP, called hgcp-Iv, was isolated from a Heterodera glycines J2 cDNA library, expressed and utilized to assess the ability of its propeptide to inhibit proteinase in its active form.

Inheritance of resistance to the root-knot nematode Meloidogyne javanica in lettuce

W. Roberto Maluf, Azevedo, S. Márcio, Gomes, L. Antonio Au, and de Oliveira, A. Cláudia B., Inheritance of resistance to the root-knot nematode Meloidogyne javanica in lettuce, vol. 1, pp. 64-71, 2002.

Resistance to the root-knot nematodes Meloidogyne spp. would be a valuable attribute of lettuce Lactuca sativa L. cultivars grown in tropical regions. The looseleaf lettuce ‘Grand Rapids’ is resistant to both M. incognita and M. javanica. Resistance to M. incognita has a high heritability, under the control of a single gene locus, in which the ‘Grand Rapids’ allele, responsible for resistance (Me), has predominantly additive gene action, and has incomplete penetrance and variable expressivity.

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