Minnieroot (Ruellia tuberosa)

Kencana ungu or pletesan or popping pod or minnieroot (Ruellia tuberosa) is a species of plant in the Acanthaceae, an upright herb, up to 2 meters high and has many branches. The leaves are oval, with a pointed base, blunt tip, thin, flat surface, green, flat edges and pinnate veins.

R. tuberosa has leaves up to 13 cm long, 7 cm wide and stalks up to 4 cm long. Trumpet-shaped flowers, 4-5 cm in diameter and up to 6 cm long. The thin crown is purple or blue, five strands and fused downwards to form a tube.

The fruit is tubular with a pointed tip and 2-3 cm long. Young fruit is green, old fruit is brown. If the ripe fruit is exposed to water it will burst, detach and be thrown from the stalk. The seeds are round, flat and brown. Minnieroot uses taproots and tubers.

This plant contains active chemical compounds including alkaloids, triterpenoids, flavonoids, phenolics, saponins, coumarin and quinone dyes. Roots contains apigenin and luteolin. Seed oil contains myristic, capril and lauric acid.

Traditional treatment uses R. tuberosa as an antidiabetic, antipyretic, analgesic, anti-hypertensive, anti-inflammatory and antioxidant. The leaves are ground into paste and used to treat wounds, itching, insect bites, venereal disease, wounds, tumors and rheumatic complaints.

Kingdom: Plantae
Phylum: Tracheophyta
Subphylum: Angiospermae
Class: Magnoliopsida
Order: Lamiales
Family: Acanthaceae
Subfamily: Acanthoideae
Tribe: Ruellieae
Subtribe: Ruelliinae
Genus: Ruellia
Species: Ruellia tuberosa

Humpback whales (Megaptera novaeangliae) manufacture bubble-nets as tools to increase prey intake

NEWS - Humpback whales ( Megaptera novaeangliae ) create bubble net tools while foraging, consisting of internal tangential rings, and actively control the number of rings, their size, depth and horizontal spacing between the surrounding bubbles. These structural elements of the net increase prey intake sevenfold. Researchers have known that humpback whales create “bubble nets” for hunting, but the new report shows that the animals also manipulate them in a variety of ways to maximize catches. The behavior places humpbacks among the rare animals that make and use their own tools. “Many animals use tools to help them find food, but very few actually make or modify these tools themselves,” said Lars Bejder, director of the Marine Mammal Research Program (MMRP), University of Hawaii at Manoa. “Humpback whales in southeast Alaska create elaborate bubble nets to catch krill. They skillfully blow bubbles in patterns that form a web with internal rings. They actively control details such ...

Takenoshin Nakai swallow-wort (Vincetoxicum nakaianum) replaces V. magnificum and C. magnificum

NEWS - Researchers reported an erect herbaceous species distributed in the eastern part of Honshu Island, Vincetoxicum magnificum (Nakai) Kitag. based on Cynanchum magnificum Nakai, nomen nudum. Therefore, they named this species Takenoshin Nakai swallow-wort ( Vincetoxicum nakaianum K.Mochizuki & Ohi-Toma). Vincetoxicum Wolf (Asclepiadeae) is the third largest genus in the Asclepiadoideae consisting of about 260 species geographically extending from tropical Africa, Asia and Oceania to temperate regions of Eurasia. A total of 23 species are known from Japan, including 16 endemic species. Molecular phylogeny divides Japanese Vincetoxicum into four groups: the “Far Eastern” clade consisting of 11 endemic species and 4 more widespread species, 1 sister species to the “Far Eastern” clade, the “subtropical” clade consisting of 2 species and the “Vincetoxicum s. str.” clade consisting of 5 species. V. magnificum (Nakai) Kitag. (Japanese: tachi-gashiwa) is closely related to V. macro...

Sweetpotato bug (Physomerus grossipes)

Kutu ketela or sweetpotato bug ( Physomerus grossipes ) is an insect species in Coreidae, brown with black legs, adults growing about 2 cm long, oval shaped, segmented antennas, heavily veined membranes, metathoracic odor glands and enlarged rear tibia. P. grossipes generally live in Leguminosae and Convolvulaceae especially sweet potato ( Physomerus grossipes ), pink morning glory ( Ipomoea carnea ), purple beans ( Vigna unguiculata ), Asian pigeonwings ( Clitoria ternatea ) and common bean ( Phaseolus vulgaris ). Sweetpotato bugs suck liquid from the stem which causes plants to wither and disrupt fruit production. P. grossipes places eggs at the bottom of the leaves or stems or grass around them. Females are very protective of their children, keeping eggs and nymphs from predators as the most famous example of maternal care in Coreidae. Even so, about 20% of eggs are eaten by predators such as ants and 13% are lost by parasitoid predation by chalcid wasps which lay eggs in egg...

Dlium