Habanero pepper ( Capsicum chinense Jacq.) is a very important crop in Mexico and demand for it increasing national international markets. The habanero produced on the Yucatan Peninsula considered of superior quality to that grown rest world as result its shelf life pungency. Despite importance, little research has been done cultivation conditions may affect productivity fruit quality. effect N or K fertilization development pungency was evaluated. Plants under stress (control) had high...

The pungency of chili peppers is conferred by compounds called capsaicinoids that are produced only in the fruits Capsicum genus. Accumulation these may be affected environmental conditions such as water and nutrient stresses, although effects vary even among genotypes within a species. Habanero pepper ( chinense Jacq.), grown Yucatán, especially high demand result its unique flavor, aroma, second most important commercial crop state after tomato. Although significant economic resource for...

Water stress is the main factor responsible for decreased productivity, which affects growth and development of crops. Plants respond to by accumulating compatible solutes, have a key role in osmotic adjustment, thereby resulting osmoprotection plants. The loss water can increase concentration osmolytes molecules that regulate plant metabolism. These solutes be metabolized as sugars (sucrose, fructose, trehalosa), amino acids (proline), an amphoteric quaternary amine (glycine betaine), other...

Habanero pepper (Capsicum chinense Jacq.) is a crop of economic relevance in the Peninsula Yucatan.Its fruits have high level capsaicinoids compared to peppers grown other regions world, which gives them industrial importance.Soil an important factor that affects development, nutritional quality, and capsaicinoid content.However, effect soil type on fruit development metabolism has been little understood.This work aimed compare soils with contrasting characteristics, black (BS) red (RS),...

Amino acids, a major fraction of the low-molecular-weight organic nitrogen in soil, act as signaling molecules that indicate presence nutrient-rich patches to roots. To characterize effects amino acids on root growth, we used seedlings habanero pepper ( Capsicum chinense ), one most widely cultivated annual spice crops world. We tested effect L-glutamate, L-aspartate, and glycine primary grown aseptically under different conditions pH light. L-glutamate L-aspartate did not inhibit growth...

In this work, we analysed the natural variation in mechanisms for protection against salt stress pepper varieties (Capsicum chinense Jacq. cv. Rex, Chichen-Itza and Naranja Capsicum annuum L. Padron), considering primary root growth viability of post-stressed seedlings. NaCl-induced K+ H+ efflux roots was also studied by ion-selective microelectrodes under application pharmacological agents. these varieties, magnitude leakage positively correlated with inhibition presence NaCl, Rex variety...

The characteristics of the soil in Peninsula Yucatán confer unique organoleptic properties to habanero pepper ( Capsicum chinense Jacq.), and thus this entity possesses denomination origin species, making these chilis most coveted, nationally internationally. However, extreme microtopographic variation distinguishing complicates transfer technologies successful establishment agricultural practices. Maya farmers region identify brown soils as preferable for cultivation chili, although there...

High-affinity K+ (HAK) transporters are encoded by a large family of genes and ubiquitous in the plant kingdom. These HAK-type participate low- high-affinity potassium (K+) uptake crucial for maintenance homeostasis under hostile conditions. In this study, full-length cDNA CcHAK1 gene was isolated from roots habanero pepper (Capsicum chinense). expression positively regulated starvation not inhibited presence NaCl. Phylogenetic analysis placed transporter group I HAK transporters, showing...

Abstract Proline (Pro) is a low-molecular-weight cyclic amino acid that plays an important role as source of energy and reducing power carbon nitrogen compounds for plant development. In most species, Pro considered stress marker. It also common compatible solute used cumulatively by plants under osmotic stress. The pepper genus, which includes species great economic importance distributed throughout the world, target different types stresses, both biotic abiotic, in tolerance to some these...

Capsaicinoids, the chemical compounds that confer pungency trait to peppers, are accumulated at different levels in all species of genus Capsicum . There is much evidence suggesting synthesis capsaicinoids occurs placenta interlocular septum pepper fruits; however, exact localization biosynthesis accumulation pathways still under debate. Thus, aim present work was evaluate whether plants synthesize or accumulate vegetative organs as an indirect way elucidate systemic regulation capsaicinoid...

Dynamics and distribution of K, Ca, Mg, P, Na were studied in leaves three cultivars habanero pepper ( Capsicum chinense Jacq.) at the time transplanting 8 14 weeks afterward. Most nutrients analyzed mobilized from younger to mature leaves, except for which occurred opposite direction, probably due its role synthesis nucleic acids, is more active young tissues. Information about mineral during first after transplantation could be used indicate plant nutritional status fertilizer requirements.

Capsaicinoids are responsible for the pungency in Capsicum species. These synthesized by Capsaicin synthase (CS) encoded AT3 gene, which catalyzes transference of an acyl moiety from a branched-chain fatty acid-CoA ester to vanillylamine produce capsaicinoids. Some gene copies have been identified on genome. The absence capsaicinoid some nonpungent accessions is related mutant alleles. differences between CS protein can affect tridimensional structure and affinity its substrates, this could...