Results 131 to 140 of about 42,350 (345)
Existence of periodic orbits for geodesible vector fields on closed 3-manifolds
, 2009 In this paper we deal with the existence of periodic orbits of geodesible vector fields on closed 3-manifolds. A vector field is geodesible if there exists a Riemannian metric on the ambient manifold making its orbits geodesics.
Rechtman, Ana
core +1 more source
Portulaca eggliana (Portulacaceae), a new species from the Brazilian Amazonian savannas
Nordic Journal of Botany, EarlyView.A new species of Portulacaceae from the Amazonian savannas of northern Brazil is herein described and illustrated. Portulaca eggliana is morphologically related to P. umbraticola, but differs in the number of involucral leaves, sepal morphology, bracteole shape, and seed surface.
José Roberto Ferraz +4 more
wiley +1 more source
New Plant Protection, EarlyView.ToLCNDV is typically transmitted by the whitefly Bemisia tabaci, but the efficiency of transmission varies among different cryptic species. The retention and circulation of viruses in insect vectors are crucial determinants of successful transmission to new plants.
Hongwei Shan +8 more
wiley +1 more source
Cotton transgenics with Antisense AC1 gene for resistance against cotton leaf curl virus [PDF]
Electronic Journal of Plant Breeding, 2010 Cotton leaf curl virus is a devastating pest in the North India and in small pockets of Southern states. Cotton leaf curldisease (CLCuD) is caused by a Geminivirus, transmitted by whitefly Bemisia tabaci vector.
J.Amudha, G.Balasubramani, V.G.Malathi, D.Monga, K.C.Bansal and K.R.Kranthi
doaj
Plant defense strategies: The dual armor of disease resistance and tolerance
New Plant Protection, EarlyView.Plants employ dual strategies against pathogens: Resistance limits invasion via immune responses, whereas tolerance mitigates damage to sustain growth—together enhancing survival under infections. Abstract Pathogen infections pose a significant threat to plant health, global food security, and ecosystems.
Zhijuan Tang +3 more
wiley +1 more source
Frontiers in Plant ScienceBegomoviruses (family Geminiviridae) are known for causing devastating diseases in fruit, fibre, pulse, and vegetable crops throughout the world. Begomoviruses are transmitted in the field exclusively through insect vector whitefly (Bemisia tabaci), and ...
Nagamani Sandra, Bikash Mandal
doaj +1 more source
Catalysts for change: Museum gardens in a planetary emergency
PLANTS, PEOPLE, PLANET, EarlyView.Natural history museums are often seen as places with indoor galleries full of dry‐dusty specimens, usually of animals. But if they have gardens associated with them, museums can use living plants to create narratives that link outside spaces to inside galleries, bringing to life the challenges facing biodiversity.
Ed Baker +4 more
wiley +1 more source
Tomato leaf curl geminivirus in Australia: occurrence, detection, sequence diversity and host range [PDF]
, 2003 J. Stonor +4 more
openalex +1 more source