query: instance_of erysiphe betae
supports: Sucrose is a common, naturally occurring saccharide found in many plants and plant parts. Saccharose is an obsolete name for sugars in general, especially sucrose. The molecule is a disaccharide combination of the monosaccharides glucose and fructose with the formula CHO. Erysiphe cichoracearum is a plant pathogen that causes powdery mildew disease of cucurbits, including melon, cucumber, pumpkin, and squash. The primary symptoms are white, powder-like spots on the leaves and stems. "Sphaerotheca fuliginea" causes a similar looking powdery mildew of cucurbits. Beta vulgaris (beet) is a plant which is included in Betoideae subfamily in the Amaranthaceae family. It is the economically most important crop of the large order Caryophyllales. It has several cultivar groups, the sugar beet, of greatest importance to produce table sugar; the root vegetable known as the beetroot or garden beet; the leaf vegetables chard and spinach beet; and mangelwurzel, which is a fodder crop. Three subspecies are typically recognised. All cultivars fall into the subspecies "Beta vulgaris" subsp. "vulgaris". The wild ancestor of the cultivated beets is the sea beet ("Beta vulgaris" subsp. "maritima").  In a plant with a taproot system, the taproot is the largest, most central, and most dominant root from which other roots sprout laterally. Typically a taproot is somewhat straight and very thick, is tapering in shape, and grows directly downward. Mildew is a form of fungus. It is distinguished from its closely related counterpart, mold (British English: mould), largely by its color: molds appear in shades of black, blue, red, and green, whereas mildew is white. It appears as a thin, superficial growth consisting of minute hyphae (fungal filaments) produced especially on living plants or organic matter such as wood, paper or leather. Both mold and mildew produce distinct offensive odors, and both have been identified as the cause of certain human ailments. Sugar beet is the Altissima Group of cultivars of the common beet ("Beta vulgaris"). It is a plant whose root contains a high concentration of sucrose and it is grown commercially for sugar production. Sugar beets and other beet cultivars, such as beetroot and chard, are members of "Beta vulgaris" subsp. "vulgaris" and share a common wild ancestor, the Sea beet ("Beta vulgaris" subsp. "maritima"). The sea beet, "Beta vulgaris" subsp. "maritima" ((L.) Arcangeli.), is a member of the family Amaranthaceae, previously of the Chenopodiaceae. Carl Linnaeus first described "Beta vulgaris" in 1753; in the second edition of "Species Plantarum" in 1762, he divided the species into wild and cultivated varieties, giving the name "Beta maritima" to the wild taxon. Erysiphales are an order of ascomycete fungi. The order contains one family, Erysiphaceae. Many of them cause plant diseases called powdery mildew. Powdery mildew is a fungal disease that affects a wide range of plants. Powdery mildew diseases are caused by many different species of fungi in the order Erysiphales, with "Podosphaera xanthii" (a.k.a. "Sphaerotheca fuliginea") being the most commonly reported cause. "Erysiphe cichoracearum" was formerly reported to be the primary causal organism throughout most of the world. Powdery mildew is one of the easier plant diseases to identify, as its symptoms are quite distinctive. Infected plants display white powdery spots on the leaves and stems. The lower leaves are the most affected, but the mildew can appear on any above-ground part of the plant. As the disease progresses, the spots get larger and denser as large numbers of asexual spores are formed, and the mildew may spread up and down the length of the plant. Chard ("Beta vulgaris" subsp. "vulgaris", Cicla-Group and Flavescens-Group) is a leafy green vegetable often used in Mediterranean cooking. In the Flavescens-Group-cultivars, the leaf stalks are large and are often prepared separately from the leaf blade. The leaf blade can be green or reddish in color; the leaf stalks also vary in color, usually white, yellow, or red. Chard has highly nutritious leaves making it a popular addition to healthful diets (like other green leafy vegetables). Chard has been around for centuries, but because of its similarity to other beets and some other vegetables such as cardoon, the common names used by cooks over the centuries may be confusing. Erysiphe betae is a plant pathogen . It is a form of powdery mildew that affects sugar beet . The fungus occurs worldwide in all regions where sugar beet is grown and it also infects other edible crops , e.g. beetroot . Sugar is the generalized name for sweet, short-chain, soluble carbohydrates, many of which are used in food. They are composed of carbon, hydrogen, and oxygen. There are various types of sugar derived from different sources. Simple sugars are called monosaccharides and include glucose (also known as dextrose), fructose, and galactose. The table or granulated sugar most customarily used as food is sucrose, a disaccharide. (In the body, sucrose hydrolyses into fructose and glucose.) Other disaccharides include maltose and lactose. Longer chains of sugars are called oligosaccharides. Chemically-different substances may also have a sweet taste, but are not classified as sugars. Some are used as lower-calorie food substitutes for sugar, described as artificial sweeteners. The PHP Extension and Application Repository, or PEAR, is a repository of PHP software code. Stig S. Bakken founded the PEAR project in 1999 to promote the re-use of code that performs common functions. The project seeks to provide a structured library of code, maintain a system for distributing code and for managing code packages, and promote a standard coding style. Though community-driven, the PEAR project has a PEAR Group which serves as the governing body and takes care of administrative tasks. Each PEAR code package comprises an independent project under the PEAR umbrella. It has its own development team, versioning-control and documentation. The beetroot is the taproot portion of the beet plant, usually known in North America as the beet, also table beet, garden beet, red beet, or golden beet. It is one of several of the cultivated varieties of "Beta vulgaris" grown for their edible taproots and their leaves (called beet greens). These varieties have been classified as "B. vulgaris" subsp. "vulgaris" Conditiva Group.
candidates: application chain code color combination cooking disease extension family food formula group hydrogen leaf library matter member molecule name order organic matter plant production range sea share species sugars system table taxon vegetable
answer: taxon