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Heterodera glycines (soybean cyst nematode, SCN) is one of the most devastating pathogens of soybean worldwide. The compatible and in compatible interactions between soybean and SCN have well documented. Nevertheless, the molecular mechanism of a nonhost resistant response in soybean against SCN infection remains obscure. Toward this end, a global transcriptional comparison was conducted between susceptible and resistant reactions of soybean roots infected by taking advantage of finding a new pathotype of SCN (SCNT). The soybean cultivar Lee, which exhibits resistant to SCNT and susceptible to HG 1.2.3.4.7 (SCNs) was utilized in the expriments. The results highlighted a nonhost resistant response of soybean. Transcriptome analysis indicated that the number of differentially expressed genes (DEGs) in the resistant interaction (3746) was much larger than that in the susceptible interaction (602). A great number of genes acting as intrinsic component of membrane, integral component of membrane, cell periphery and plasma membrance were remarkably enriched only in the resistant interaction, while the taurine and hypotaurine, phenylpropanoid pathway, plant-pathogen interaction and transcript factors were modulated in both interactions. This is the first study to examine genes expression patterns in a soybean genotype in response to invasion by a virulent and avirulent SCN population at the transcriptional level, which will provide insights into the complicate molecular mechanism of the nonhost resistant interaction. [ABSTRACT FROM AUTHOR]

Two trinuclear zinc(II) complexes, [Zn3(PhCH=CHCO2)6 (L)2]H2O (L=2,2′-bipyridine for 1 and 1,10-phenanthroline for 2), have been synthesized and structurally characterized by single-crystal X-ray diffraction methods. Their crystal structures are featured by the linear arrangement of three zinc atoms linked by six cinnamate anions with the aromatic ligands residing outside. In the crystal structure of 1, the [Zn3(PhCH=CHCOO)6(bpy)2] complex molecules are interlinked by C–H⋯O weak hydrogen-bonding interactions into one-dimensional chains parallel to [110] direction; and in 2, the [Zn3(PhCH=CHCOO)6(phen)2] complex molecules are held together by C–H⋯O weak hydrogen-bonding interactions and π–π stacking interactions between the 1,10-phenanthroline groups of neighbouring complex molecules into one-dimensional chains parallel to [110] direction. Compounds 1 and 2 both exhibit stronger fluorescence compared to that of the free ligands in solid state at room temperature. [Copyright &y& Elsevier]