(n.) A composite plant of the genus Lactuca (L. sativa), the leaves of which are used as salad. Plants of this genus yield a milky juice, from which lactucarium is obtained. The commonest wild lettuce of the United States is L. Canadensis.
Example Sentences:
(1) In lettuce, the presence of 2,4-D in the light lowered the concentration of total Hg (or MeHg) required to reduce growth by 50%, about 13 times relative to that in the dark (i.e., it sensitized the cells).
(2) The insecticides did not translocate into the edible parts of the vegetables but were present in the root system of onion and lettuce.
(3) Alice Workman (@workmanalice) What's your favourite type of lettuce?
(4) From lettuce and string beans quercetin was isolated (after chemical hydrolysis) and in rhubarb emodin, an anthraquinon, was detected.
(5) A gradual decrease in the number of viable L. monocytogenes cells was observed in juice and sauce held at 21 degrees C. In contrast, the organism died rapidly when suspended in commercial tomato ketchup at 5 and 21 degrees C. Unlike low-acid raw salad vegetables such as lettuce, broccoli, asparagus, and cauliflower on which we have observed L. monocytogenes grow at refrigeration temperatures, tomatoes are not a good growth substrate for the organism.
(6) Photograph: Getty Images Lettuce is a brilliant vegetable to begin with if you have never grown anything before.
(7) January 12, 2016 Shorten hastily responded to that debate on Twitter with a pun-laden non-answer, saying: “Cos you asked … my favourite lettuce is one that doesn’t have a 15 per cent GST on it.” Bill Shorten (@billshortenmp) Cos you asked @workmanalice - my favourite lettuce is one that doesn't have a 15 per cent GST on it.
(8) The most were found on celery, lettuce and field tomatoes.
(9) In neighbouring Honduras , a group of farmers who were tired of seeing the lion's share of their produce go to middlemen decided three years ago to work with buyers in the country's largest city, San Pedro Sula, selling directly to supermarkets and fast-food chains, to offer a steady supply of lettuce, tomatoes, broccoli and other vegetables.
(10) These may involve either nutrition, as in calcium deficiency in some lettuce varieties, tomato, and bell peppers, or direct toxicity (chloride or sodium toxicity, or both) in tree and vine crops.
(11) Incubation of tobacco and lettuce thylakoids with 2 M LiCl in the presence of MgATP removes the beta subunit from their CF1-ATPase (CF1 beta) together with varying amounts of the CF1 alpha subunit (CF1 alpha).
(12) Lettuce meals and their controls contained 9.65 mumol Mn; other meals contained 22.50 mumol Mn.
(13) For leaves well into autumn, sow a few seeds every week or two until late summer; large lettuces should be grown about 20-40cm apart, while cut‑and-come-again leaves can be crammed in as tight as you can get them.
(14) In gelatin (pH 4.0), lettuce extract, peas and beans extracts and ovalbumin (pH 5.0) the immunological activity of SE was lost almost completely upon heating.
(15) At the moment the club needs a long term strategy but has an owner with a short term view - Al Reading It’s been one huge wet lettuce of a season Ben Barker, Reading fan It’s been one huge wet lettuce of a season.
(16) Only 4 of the analysed 21 vegetables exhibited fluorine contents exceeding those admitted by the Council for Mutual Economic Aid (2.5 mg F per 1 kg of vegetable wet weight); they included: young beet leaves, parsley tops, lettuce and sorrel.
(17) 4 Put the lettuce leaves in another bowl, cucumber sticks in another and bamboo shoots in another.
(18) January 13, 2016 The Greens leader, Richard Di Natale , who grows his own lettuce, named butter lettuce his favourite but added: “I’m very inclusionary when it comes to lettuce.” There were no personal questions about produce preferences in St Albans.
(19) We have used bulked segregant analysis to identify three random amplified polymorphic DNA markers in lettuce linked to a gene for resistance to downy mildew.
(20) One freshener contained sodium bisulfite and was used on one portion of lettuce.
Spinach
Definition:
(n.) Alt. of Spinage
Example Sentences:
(1) Single stranded DNA and RNA are hydrolyzed by the spinach endonuclease.
(2) In a complete system, consisting of a dye-donor couple, ferredoxin, thioredoxin and ferredoxin-thioredoxin reductase, light activation of purified spinach fructose-1,6-bisphosphatase was observed in vitro.
(3) Recent characterization of spinach phosphoribulokinase has revealed that the homodimeric molecule contains only two tryptophans per 44-kDa subunit.
(4) The rate of the irreversible damage to the reaction center II, caused by exposure of spinach thylakoids to high light was slowed down by anaerobic conditions and by lowering the temperature.
(5) A protein kinase was isolated from spinach thylakoid membranes by solubilization with octyl glucoside and cholate.
(6) The bean sprout enzyme catalyzed ferredoxin-dependent electron transfer from NADPH to equine cytochrome c at a high rate but, unlike the spinach enzyme, exhibited little NADPH to 2,6-dichlorophenol indophenol diaphorase activity.
(7) Absorbance changes in the region 500-565 nm and at 702 nm, brought about by excitation of Photosystems 1 and 2, respectively, were measured in spinach chloroplasts at minus 50 degrees C. Either dark-adapted chloroplasts were used or chloroplasts preilluminated with a number of short saturating flashes just before cooling.
(8) Treatment with the carboxyl amino acid modifier 1-ethyl-3-[3-(dimethylamino)propyl]carbodiimide (EDC) inhibited half of the high-affinity Mn-binding site in spinach and Scenedesmus WT PS II membranes and all of the available site in Scenedesmus LF-1 mutant PS II membranes.
(9) The dissociation constants of immobilized ferredoxin from spinach, barley and S. vulcanus for spinach ferredoxin-NADP reductase were 0.922, 2.505 and 5.209 microM, respectively, whereas those for barley ferredoxin-NADP reductase were 1.159, 0.579 and 2.851 microM, respectively.
(10) Photosynthetic carbon assimilation and associated CO(2)-dependent O(2) evolution by chloroplasts isolated from pea shoots and spinach leaves is almost completely inhibited by 10mm-dl-glyceraldehyde.
(11) Using the expression vector lambda gt11 and immunochemical detection, six cDNA clones that encode the entire precursor polypeptides for spinach thioredoxin m were isolated and characterized.
(12) Sucrose-phosphate synthase (SPS) purified from spinach leaves harvested in the dark, was activated by mammalian protein phosphatase 2A (PP2A).
(13) Crystals of spinach ribulose-P2 carboxylase were likewise analyzed to show that dimers of the L-subunit were also predominant.
(14) CO2 fixation of intact spinach chloroplasts is inhibited by nitrite in a pH-dependent mode.
(15) For this purpose intact spinach chloroplasts were biosynthetically preloaded with radioactive diacylglycerol to provide a sulfoquinovosyl acceptor.
(16) Within this context we report and discuss the implication of three kinds of data on spinach chloroplast LHCP.
(17) A 7,022 bp BamHI-EcoRI fragment, located in the inverted repeat of spinach chloroplast, has been sequenced.
(18) The procedure for isolatio of the coupling factor is designed to separate this large (approximately 13 S) enzyme from the smaller (4.2 S) conventional adenylate kinase of spinach chloroplasts.
(19) Photosystem I fragments were prepared by digitonin treatment of spinach chloroplasts.
(20) In Tris-washed spinach chloroplasts (incapable of O2 evolution), the chlorophyll a fluorescence transient in the presence of various artificial electron donors (hydroquinone, diphenylcarbazide, MnCl2 and NH2OH) and in the absence of bicarbonate ions shows a rapid initial rise; the addition of 10 mM NaHCO3 restores the transient to one characteristic of normal chloroplast.