The phytoene desaturase (PDS) encodes a crucial enzyme in the carotenoid biosynthesis pathway. Silencing or inhibiting PDS expression leads to appearance of mottled, chlorosis, albino leaves. In this study, CDS sequence EuPDS (Eucommia ulmoides Phytoene Desaturase) was first cloned and then silenced Nicotiana benthamiana. Result showed level leaves higher than that roots stems. N. benthamiana l...

When deprived of essential nutrients, the non-diazotrophic cyanobacterium Synechococcus sp. strain PCC 7942 undergoes a proteolytic degradation of the phycobiliproteins, its major light-harvesting pigments. This process is known as chlorosis. This paper presents evidence that the degradation of phycobiliproteins is part of an acclimation process in which growing cells differentiate into non-pig...

We previously demonstrated a specific interaction between Tomato mosaic virus (ToMV) coat protein (CP) and a tobacco protein designated IP-L that may be involved in the long-distance movement of ToMV. Here, using the yeast two-hybrid system and GST pull-down assay, we demonstrated that the N-terminal helical region (residues 3-18) of IP-L is required for the interaction, while two alpha-helical...

The cover image is based on the Original Article Tomato chlorosis virus–encoded p22 suppresses auxin signalling to promote infection via interference with SKP1-Cullin-F-boxTIR1 complex assembly by Sijia Liu et al., https://doi.org/10.1111/pce.14125.

Zinc toxicity and Zn-Fe interactions were studied in corn (Zea mays L. var. Barbecue hybrid) grown in hydroponic culture. High Zn greatly reduced the root and shoot fresh weights; increasing Fe largely, but not completely, restored normal growth. Correlation analyses of root and leaf Zn and Fe contents suggested that Zn may interfere with the translocation of Fe; however, Zn toxicity was not as...

Tentoxin, a cyclic tetrapeptide, induces chlorosis in certain plant species. It inactivated photophosphorylation and coupling factor 1 (CF(1)) ATPase in lettuce, a sensitive species. This effect was due to binding of tentoxin with CF(1) at a single site (affinity constant 1.3 to 20 x 10(7) M(-1)). Neither AMP nor adenyl-5'-yl imidodiphosphate appeared to bind to this site. In radish, an insensi...

Pathogens have evolved various strategies to overcome host immunity for successful infection. Maize chlorotic mottle virus (MCMV) can cause lethal necrosis in maize (Zea mays) when it coinfects with a the Potyviridae family. However, MCMV pathogenicity determinant remains largely unknown. Here we show that P31 protein of is important viral accumulation and essential symptom development. Ectopic...