plant hormone Articles

  • Impact of biosolids on hormone metabolism in drought-stressed tall fescue

    The presence of biologically active substances (BAS) in biosolids may enhance plant stress tolerance and growth, but the underlying mechanisms are not well understood. This greenhouse study investigated the effects of untreated biosolids, containing 2.1 µg indole-3-acetic acid (IAA) g–1, and tryptophan-treated biosolids, containing 15.4 µg IAA g–1, on tall fescue [Lolium arundinaceum (Schreb.) ...

  • How plants grow and develop

    How does a complete plant with stems, leafs and flowers develop from a tiny clump of seemingly identical cells? For a very long time, the mechanism of tissue formation in plants remained unclear. The biochemists from Wageningen University also would not have come up with the answer if it wasn’t for their model building colleagues that simulated plant development with their mathematical ...

  • Implication of microRNA deregulation in the response of vertebrates to endocrine disrupting chemicals

    MicroRNAs are recently discovered small regulatory molecules that control messenger RNA (mRNA) translation in plants and animals and have been implicated in a variety of hormone‐related physiological pathways. Estrogens, thyroid hormones, and gonadotropins all are known to act on miRNA abundance to cause major shifts in cellular activity, physiology, and homeostatic control mechanisms. ...


    By John Wiley & Sons, Ltd.

  • Development of drought-tolerant canola (Brassica napus L.) Through genetic modulation of ABA-mediated stomatal responses

    Canola is one of the most important oilseed crops, and its seed yield and quality are significantly affected by environmental stresses such as drought. The phytohormone abscisic acid (ABA) is induced by drought and triggers stomatal closure to reduce transpiration, which accounts for >90% of water loss in plants. The ABA-mediated stomatal response is a dosage-dependent process that can be ...

  • Summer drought survival strategies and sustainability of perennial temperate forage grasses in mediterranean areas

    Perennial grasslands provide numerous agroenvironmental benefits due to continuous soil cover. In Mediterranean areas, chronic summer drought is expected to increase as a result of climate changes. Plant adaptations that protect meristematic tissues include dehydration delay, dehydration tolerance, and summer dormancy. Summer dormancy can only be reliably tested in plants not subjected to water ...

  • Molecular and physiological responses to titanium dioxide and cerium oxide nanoparticles in arabidopsis

    Changes in tissue transcriptomes and productivity of Arabidopsis thaliana were investigated during exposure of plants to two widely used engineered metal oxide nanoparticles, titanium dioxide (nano‐titanium) and cerium dioxide (nano‐cerium). Microarray analyses confirmed that exposure to either nanoparticle altered the transcriptomes of rosette leaves and roots, with comparatively larger ...


    By John Wiley & Sons, Ltd.

  • Cross-species hybridization with fusarium verticillioides microarrays reveals new insights into fusarium fujikuroi nitrogen regulation and the role of area and NMR

    In filamentous fungi, the GATA-type transcription factor AreA plays a major role in the transcriptional activation of genes needed to utilize poor nitrogen sources. In Fusarium fujikuroi, AreA also controls genes involved in the biosynthesis of gibberellins, a family of diterpenoid plant hormones. To identify more genes responding to nitrogen limitation or sufficiency in an AreA-dependent or ...

  • Biotechnology for Environmentally Safe Agriculture

    Issue: In Europe some uses of biotechnology are meeting vocal opposition from certain quarters. Nevertheless, the vast amount of knowledge acquired recently in biology can be used to develop and apply biotechnology for an environmentally safe agriculture. Public acceptance and a new policy impetus can serve to promote the introduction of safe and competitive agricultural technologies that have a ...

  • Clean, green and powered by cow patties

    Two dome-like structures rise out of the thick ice fog of a Prairie winter day. From a distance, a science-fiction city seems to be taking shape on the rolling grasslands of east-central Alberta. Then, as you draw near, another sensation takes hold – the oppressively pungent odour of cow manure. On this day, the enveloping fog is making the smell worse than usual, explains Bern ...


    By Himark bioGas Inc

  • Getting kids to eat green

    Kids love food, but it's not always the tasty treats that are good for them or the earth. Fatty, sugary, salty and processed foods generally have more of an environmental impact than eats of the fresh, locally produced variety. It is therefore important to teach them what is healthy to eat, and how and where their food comes from. This will help them to understand the impact of the food they eat, ...


    By green24

  • Decoding the Molecular Network that Drives Hypocotyl Elongation

    Auxin and brassinosteroid (BR) promote cell expansion through interdependent and synergistic pathways (reviewed in Hardtke et al., 2007). Although the biosynthetic pathways that produce these phytohormones have been characterized and the downstream response factors that trigger cell expansion are known (Oh et al., 2014), the transcriptional network that brings about localized changes in auxin and ...


    By H Smith Plastics LTD

  • Are Conventional Farmers Becoming Interested in Organic Practices?

    Despite the fact that farming is one of the most important human activities that brings food to our tables, it contributes significantly to global pollution. Unsustainable farm practices result in the loss of biodiversity, climate changes, erosion, and the pollution of soil and water. However, when managed in a sustainable way, farming can be a source of solutions for future demands. Organic ...


    By Agrivi Ltd

  • The number one thing each of us can do to protect biodiversity

    Reducing our consumption of animal products can go a long way toward conserving endangered habitat around the world. Agriculture expansion is the leading driver of natural habitat loss worldwide. However, most of this growth is not to produce vegetables, fruits or grains to be eaten by people. Ecosystems are destroyed overwhelmingly to feed livestock. Livestock production ...


    By Ensia

  • One Year Later · Persistent Herbicides in Compost

    ONE YEAR has passed since the Washington State University (WSU) composting facility and the Spokane Regional Compost Facility discovered traces of persistent herbicides in their composts. In Spokane, the source of contamination is a compound called clopyralid. Compost contamination at WSU initially involved the herbicide picloram, but clopyralid has since been detected in the compost also. In ...


  • The developing world is awash in pesticides. Does it have to be?

    Herbicides, insecticides and fungicides threaten the environment and human health in many parts of the world. But research is pointing to a better approach. In today’s globalized world, it is not inconceivable that one might drink coffee from Colombia in the morning, munch cashews from Vietnam for lunch and gobble grains from Ethiopia for dinner. That we can enjoy these ...


    By Ensia

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