Leaf shape is mutable, changing in ways modulated by both development and environment within genotypes. A complete model of leaf phenotype would incorporate the changes during juvenile-to-adult phase transitions ontogeny each leaf. Here, we provide a morphometric description >33,000 leaflets from set tomato (Solanum spp) introgression lines grown under controlled conditions. We first compare these leaves, arising vegetative development, with >11,000 previously published field setting wild...

In the north and center of Chile, there has been a significant environmental contamination by copper due to natural factors, mining activities use agricultural fertilizers pesticides. Copper (Cu) soil is important concern in agriculture, food safety, human health. Soil concentrations higher than 100–150 mg/kg can be toxic for plants other organisms. Therefore, identification copper-tolerant crops great interest sustainable cultivation purposes. Quinoa promising candidate as crop, owing its...

Summary Heteroblasty, the temporal development of meristem, can produce diverse leaf shapes within a plant. Gevuina avellana , tree from South American temperate rainforest shows strong heteroblasty affecting shape, transitioning juvenile simple leaves to highly pinnate adult leaves. Light availability forest canopy also modulates its size and complexity. Here we studied how interaction between light environment heteroblastic progression is coordinated in this species. We used RNA ‐seq on...

Salinity has extensive adverse effects on plant growth and the development of new agronomic strategies to improve crop salt tolerance is becoming necessary. Currently, use promoting rhizobacteria (PGPR) mitigate abiotic stress in crops increasing interest. The most analyzed mechanism based ACC deaminase activity, an enzyme that decreases ethylene synthesis, important phytohormone response. We aimed identify other PGPR mediated mechanisms involved regulation plant. used three strains (ESL001,...

Throughout evolution, plants have developed different strategies of responses and adaptations that allow them to survive in conditions abiotic stress. Aloe vera (L.) Burm.f. is a succulent CAM plant can grow warm, semi-arid, arid regions. Here, we tested the effects preconditioning treatments water availability (100, 50, 25% soil field capacity, FC) on response A. prolonged drought growing hyper-arid core Atacama Desert. We studied leaf biomass, biochemical traits, photosynthetic traits...

Chenopodium quinoa Willd. is a native species that originated in the High Andes plateau (Altiplano) and its cultivation spread out to south of Chile. Because different edaphoclimatic characteristics both regions, soils from Altiplano accumulated higher levels nitrate (NO3-) than Chile, where favor ammonium (NH4+) accumulation. To elucidate whether C. ecotypes differ several physiological biochemical parameters related their capacity assimilate NO3- NH4+, juvenile plants Socaire (from...

Traditional pastures in temperate regions face limitations such as reduced growth and nutritional quality during the summer season. Plantain ( P . lanceolata L.) offers advantages like increased yield decreased nitrogen losses from grazing ruminants. Effective management is essential for pasture health, defoliation frequency intensity play a pivotal role. This study aimed to evaluate plantain’s regrowth, yield, morpho-physiological chemical responses under different frequencies intensities,...

"Memory imprint" refers to the process when prior exposure stress prepares plant for subsequent episodes. Seed priming is a strategy change performance of seedlings cope with stress; however, mechanisms associated metabolic response are fragmentary. Salinity one major abiotic stresses that affect crop production in arid and semiarid areas. Chenopodium quinoa Willd. (Amaranthaceae) promising sustain food security possesses wide genetic diversity salinity tolerance. To elucidate if memory...

Abstract Background Filmy-ferns (Hymenophyllaceae) are poikilohydric, homoiochlorophyllous desiccation-tolerant (DT) epiphytes. They can colonize lower and upper canopy environments of humid forest. desiccate rapidly (hours), contrasting with DT angiosperms (days/weeks). It has been proposed that desiccation tolerance in filmy-ferns would be associated mainly constitutive features rather than induced responses during dehydration. However, we hypothesize the inter-specific differences...

Induced systemic resistance (ISR) is one of the most studied mechanisms plant−microbe interaction and considered a very promising alternative for integrated pest management programs. In our study, we explored plant defense response induced by Bacillus velezensis BBC047 in relation to its application before or after Botrytis cinerea infection tomato plants. The inoculation did not considerably alter gene expression tissues, whereas with B. BBC047-primed plants LRR NBS-LRR receptors, which are...

Premise of research. Heteroblastic species are those that show an abrupt change in shape and/or size among individual metamers during ontogeny. Gevuina avellana Mol. (Proteaceae) is a typical tree the temperate rain forests Chile and Argentina. This shows drastic heteroblasty, changing from simple leaves at seedling stage to pinnate development. It regenerates mostly shady understories, but juveniles can be found growing under wide range light conditions (5%–50% canopy openness). Thus,...

Hymenoglossum cruentum (Hymenophyllaceae) is a poikilohydric, homoiochlorophyllous desiccation-tolerant (DT) epiphyte fern. It can undergo fast and frequent dehydration-rehydration cycles. This fern highly abundant at high-humidity/low-light microenvironments within the canopy, although rapid changes in humidity light intensity are frequent. The objective of this research to identify genes associated desiccation-rehydration cycle transcriptome H. better understand genetic dynamics behind its...

Summary Gevuina avellana (Proteaceae) is a typical tree from the South American temperate rainforest. Although this species mostly regenerates in shaded understories, it exhibits an exceptional ecological breadth, being able to live under wide range of light conditions. Here we studied genetic basis that underlies physiological acclimation photosynthetic responses G. contrasting We analyzed carbon assimilation and energy used for photochemical processes plants acclimated Also,...

Abstract Background Early seed germination and a functional root system development during establishment are crucial attributes contributing to nutrient competence under marginal soil conditions. Chenopodium quinoa Willd (Chenopodiaceae) is rustic crop, able grow in areas. Altiplano Coastal/Lowlands two representative zones of cultivation South America with contrasting fertility edaphoclimatic In the present work, we hypothesize that ecotypes Quinoa from (landrace Socaire) Coastal/Lowland...

Desert shrubs are keystone species for plant diversity and ecosystem function. Atriplex clivicola deserticola (Amaranthaceae) native from the Atacama that show contrasting altitudinal distribution (A. clivicola: 0–700 m.a.s.l.; A. deserticola: 1500–3000 m.a.s.l.). Both possess a C4 photosynthetic pathway Kranz anatomy, traits adaptive to high temperatures. Historical records projections near future trends in increasing air temperature frequency of heat wave events these species’ habitats....

Plants have developed various strategies to deal with abiotic stresses throughout their lifetimes. However, environmental can long-lasting effects, positively modifying plant physiological responses subsequent stress episodes, a phenomenon known as preconditioning or memory. Intriguingly, this memory even be transmitted offspring, referred "inter- transgenerational memory". Chenopodium quinoa is pseudocereal that withstand several stresses, including nitrogen (N) limitation. This research...

Abstract Background: Early seed germination and a functional root system development during establishment are crucial attributes contributing to nutrient competence under marginal soil conditions. Chenopodium quinoa Willd (Chenopodiaceae) is rustic crop, able grow in areas. Altiplano Coastal/Lowlands two representative zones of cultivation South America with contrasting fertility edaphoclimatic conditions.In the present work, we hypothesize that ecotypes Quinoa from (landrace Socaire)...

Abstract Background: Early seed germination and a functional root system development during establishment are crucial attributes contributing to nutrient competence under marginal soil conditions. Chenopodium quinoa Willd (Chenopodiaceae) is rustic crop, able grow in areas. Altiplano Coastal/Lowlands two representative zones of cultivation South America with contrasting fertility edaphoclimatic In the present work, we hypothesize that ecotypes Quinoa from (landrace Socaire) Coastal/Lowland...

Fog is an important water resource for ecosystems in arid zones, where plants play a key role fog harvest. Studies on adaptive traits interception have been addressed mainly terms of forest tree species, considering stand distribution, shoot architecture, and leaf inclination angle, with less emphasis surface traits. Moreover, xerophytic shrubs, whose capture only recently being recognized, barely studied this regard. We analyzed traits, throughfall 11 12 species two sites (xeric mesic)...

ABSTRACT Ferns from the Hymenophyllaceae family are one of main components epiphytic species diversity in Chilean temperate rain forest. Having membranous fronds a single layer cells, they show poikilohydric strategy most typical bryophytes. Although shows ability to tolerate desiccation, there interspecific differences their water loss kinetic. Counter-intuitively, those that have rapid desiccation kinetic able reach higher host height and light exposure vapor pressure deficit. Therefore,...