In this year there is the 40th anniversary of the first publication of plant nitric oxide (NO)
emission by Lowell Klepper. In the decades since then numerous milestone discoveries …

Nitric oxide (NO), a non-charged, small, gaseous free-radical, is a signaling molecule in all
plant cells. Several studies have proposed multifarious physiological roles for NO, from seed …

Nitric oxide (NO) is a free radical molecule involved in an array of functions under
physiological and adverse environmental conditions. As other free radical molecules, NO …

A bstract Plant responses to herbivores are complex. Genes activated on herbivore attack
are strongly correlated with the mode of herbivore feeding and the degree of tissue damage …

It is now clear that hydrogen peroxide (H 2 O 2) and nitric oxide (NO) function as signalling
molecules in plants. A wide range of abiotic and biotic stresses results in H 2 O 2 generation …

Silicon (Si) is a bioactive element associated with beneficial effects on mechanical and
physiological properties of plants. Silicon alleviates abiotic and biotic stresses, and …

Transposon inactivation of Arabidopsis MAP kinase 4 produced the mpk4 mutant exhibiting
constitutive systemic acquired resistance (SAR) including elevated salicylic acid (SA) levels …

Recently nitric oxide (NO) has emerged as a key signalling molecule in plants. Here we
review the potential sources of endogenous NO, outline the biological processes likely to be …

Arsenic (As) is a toxic metalloid that adversely affects plant growth, and poses severe risks to
human health. It induces disturbance to many physiological and metabolic pathways such …

Salicylic acid (SA) plays a critical signaling role in the activation of plant defense responses
after pathogen attack. We have identified several potential components of the SA signaling …